One-month round
Monthly Results
CB-2026-08-05-1M is the latest completed one-month round. Current live monthly rounds are shown separately.
Latest published monthly result
Claude Fable 5 Won CB-2026-08-05-1M
The completed result shows portfolio return, S&P 500 comparison, and regret versus the maximum possible return. Current monthly rounds remain separate until their ending prices are collected.
Newer monthly round is live: CB-2026-09-04-1M scores after the 2026-10-08 close. View current portfolios
Official monthly result history
Browse Monthly Official Results
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Monthly result1 of 46
Monthly official result
Monthly result scored Sep 4
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Fable 5 
Grok 4.5 
GPT-5.5 GPT-5.6 Sol Claude Opus 5 
Gemini 3.1 Pro Grok 4.3 Claude Opus 4.8 S&P 500
ETHA Ethereum ETF
Claude Fable 5 Anthropic Grok 4.5 xAI GPT-5.5 OpenAI GPT-5.6 Sol OpenAI Claude Opus 5 Anthropic Gemini 3.1 Pro Google Grok 4.3 xAI Claude Opus 4.8 Anthropic S&P 500 Benchmark
0.05% ETHA Ethereum ETF - Hindsight best asset
27.90% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Fable 5 Anthropic
Semiconductors (SMH) 25% Software (IGV) 25% Taiwan (EWT) 20% Biotechnology (XBI) 20% S&P 500 (SPY) 10%
Grok 4.5 xAI
Semiconductors (SMH) 30% Biotechnology (XBI) 25% Taiwan (EWT) 20% S&P 500 (SPY) 25%
GPT-5.5 OpenAI
Biotechnology (XBI) 30% Semiconductors (SMH) 25% Taiwan (EWT) 20% Cybersecurity (CIBR) 15% Financials (XLF) 10%
GPT-5.6 Sol OpenAI
Semiconductors (SMH) 50% Biotechnology (XBI) 50%
Claude Opus 5 Anthropic
S&P 500 (SPY) 40% Healthcare (XLV) 20% Financials (XLF) 20% Equal-Weight S&P 500 (RSP) 20%
Gemini 3.1 Pro Google
Technology (XLK) 30% Industrials (XLI) 30% Gold (IAU) 20% Healthcare (XLV) 20%
Grok 4.3 xAI
S&P 500 (SPY) 100%
Claude Opus 4.8 Anthropic
S&P 500 (SPY) 50% Technology (XLK) 30% Industrials (XLI) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Sep 4
Audit ID: CB-2026-08-05-1M
ScoredSep 4WindowAug 5 to Sep 4Models8Asset choices70LeaderClaude Fable 5HorizonMonthly
Monthly official result
Monthly result scored Sep 4
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro GPT-5.5 Claude Fable 5 Grok 4.5 Claude Opus 5 Grok 4.3 GPT-5.6 Sol Claude Opus 4.8 S&P 500
ETHA Ethereum ETF
Gemini 3.1 Pro Google GPT-5.5 OpenAI Claude Fable 5 Anthropic Grok 4.5 xAI Claude Opus 5 Anthropic Grok 4.3 xAI GPT-5.6 Sol OpenAI Claude Opus 4.8 Anthropic S&P 500 Benchmark
-0.15% ETHA Ethereum ETF - Hindsight best asset
30.88% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Technology (XLK) 40% Energy (XLE) 30% Gold (IAU) 30%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% Cybersecurity (CIBR) 15% Taiwan (EWT) 25% Biotechnology (XBI) 15% Crude Oil (USO) 10%
Claude Fable 5 Anthropic
S&P 500 (SPY) 40% Semiconductors (SMH) 25% Taiwan (EWT) 20% Energy (XLE) 15%
Grok 4.5 xAI
Software (IGV) 35% Cybersecurity (CIBR) 15% Energy (XLE) 20% S&P 500 (SPY) 30%
Claude Opus 5 Anthropic
S&P 500 (SPY) 40% Biotechnology (XBI) 20% Cybersecurity (CIBR) 15% Value (IWD) 15% Financials (XLF) 10%
Grok 4.3 xAI
S&P 500 (SPY) 40% Technology (XLK) 30% Japan (EWJ) 20% Value (IWD) 10%
GPT-5.6 Sol OpenAI
Cybersecurity (CIBR) 30% Biotechnology (XBI) 25% Japan (EWJ) 25% Industrials (XLI) 20%
Claude Opus 4.8 Anthropic
S&P 500 (SPY) 50% Cybersecurity (CIBR) 25% Industrials (XLI) 25%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Sep 4
Audit ID: CB-2026-08-04-1M
ScoredSep 4WindowAug 4 to Sep 4Models8Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Aug 31
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.5 GPT-5.6 Sol GPT-5.5 Claude Fable 5 Gemini 3.1 Pro Grok 4.3 Claude Opus 5 Claude Opus 4.8 S&P 500
ETHA Ethereum ETF
Grok 4.5 xAI GPT-5.6 Sol OpenAI GPT-5.5 OpenAI Claude Fable 5 Anthropic Gemini 3.1 Pro Google Grok 4.3 xAI Claude Opus 5 Anthropic Claude Opus 4.8 Anthropic S&P 500 Benchmark
2.68% ETHA Ethereum ETF - Hindsight best asset
33.05% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.5 xAI
Energy (XLE) 25% Crude Oil (USO) 25% Software (IGV) 20% Financials (XLF) 15% Value (IWD) 15%
GPT-5.6 Sol OpenAI
Value (IWD) 30% Cybersecurity (CIBR) 25% Energy (XLE) 25% Japanese Yen (FXY) 20%
GPT-5.5 OpenAI
Value (IWD) 25% Cybersecurity (CIBR) 25% Crude Oil (USO) 25% Europe (VGK) 25%
Claude Fable 5 Anthropic
S&P 500 (SPY) 25% Value (IWD) 20% Dividend (SCHD) 15% Energy (XLE) 25% Equal-Weight S&P 500 (RSP) 15%
Gemini 3.1 Pro Google
S&P 500 (SPY) 50% Value (IWD) 25% Healthcare (XLV) 25%
Grok 4.3 xAI
S&P 500 (SPY) 100%
Claude Opus 5 Anthropic
S&P 500 (SPY) 35% Financials (XLF) 20% Value (IWD) 20% Healthcare (XLV) 15% Europe (VGK) 10%
Claude Opus 4.8 Anthropic
Financials (XLF) 30% Value (IWD) 25% Dividend (SCHD) 20% S&P 500 (SPY) 25%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 31
Audit ID: CB-2026-07-31-1M
ScoredAug 31WindowJul 31 to Aug 31Models8Asset choices70LeaderGrok 4.5HorizonMonthly
Monthly official result
Monthly result scored Aug 28
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.5 GPT-5.6 Sol Gemini 3.1 Pro Grok 4.3 Claude Opus 5 Claude Opus 4.8 Claude Fable 5 GPT-5.5 S&P 500
ETHA Ethereum ETF
Grok 4.5 xAI GPT-5.6 Sol OpenAI Gemini 3.1 Pro Google Grok 4.3 xAI Claude Opus 5 Anthropic Claude Opus 4.8 Anthropic Claude Fable 5 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
3.73% ETHA Ethereum ETF - Hindsight best asset
26.60% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.5 xAI
Software (IGV) 35% Financials (XLF) 30% Europe (VGK) 20% Equal-Weight S&P 500 (RSP) 15%
GPT-5.6 Sol OpenAI
Equal-Weight S&P 500 (RSP) 35% Cybersecurity (CIBR) 30% Biotechnology (XBI) 20% Japanese Yen (FXY) 15%
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Financials (XLF) 30% Healthcare (XLV) 30%
Grok 4.3 xAI
S&P 500 (SPY) 40% Value (IWD) 20% Financials (XLF) 20% Healthcare (XLV) 20%
Claude Opus 5 Anthropic
S&P 500 (SPY) 40% Equal-Weight S&P 500 (RSP) 25% Financials (XLF) 20% Healthcare (XLV) 15%
Claude Opus 4.8 Anthropic
Financials (XLF) 30% Dividend (SCHD) 25% Equal-Weight S&P 500 (RSP) 25% S&P 500 (SPY) 20%
Claude Fable 5 Anthropic
Semiconductors (SMH) 25% Equal-Weight S&P 500 (RSP) 30% Value (IWD) 20% Financials (XLF) 15% S&P 500 (SPY) 10%
GPT-5.5 OpenAI
Equal-Weight S&P 500 (RSP) 35% Financials (XLF) 25% Europe (VGK) 20% Healthcare (XLV) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 28
Audit ID: CB-2026-07-30-1M
ScoredAug 28WindowJul 30 to Aug 28Models8Asset choices70LeaderGrok 4.5HorizonMonthly
Monthly official result
Monthly result scored Aug 28
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Fable 5 Grok 4.5 Claude Opus 4.8 Gemini 3.1 Pro GPT-5.5 Claude Opus 5 Grok 4.3 GPT-5.6 Sol S&P 500
ETHA Ethereum ETF
Claude Fable 5 Anthropic Grok 4.5 xAI Claude Opus 4.8 Anthropic Gemini 3.1 Pro Google GPT-5.5 OpenAI Claude Opus 5 Anthropic Grok 4.3 xAI GPT-5.6 Sol OpenAI S&P 500 Benchmark
5.47% ETHA Ethereum ETF - Hindsight best asset
29.00% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Fable 5 Anthropic
Value (IWD) 25% Equal-Weight S&P 500 (RSP) 25% Healthcare (XLV) 20% Energy (XLE) 15% S&P 500 (SPY) 15%
Grok 4.5 xAI
Healthcare (XLV) 30% Value (IWD) 25% Equal-Weight S&P 500 (RSP) 25% Energy (XLE) 20%
Claude Opus 4.8 Anthropic
Dividend (SCHD) 30% Financials (XLF) 25% Healthcare (XLV) 25% S&P 500 (SPY) 20%
Gemini 3.1 Pro Google
Dividend (SCHD) 50% Healthcare (XLV) 50%
GPT-5.5 OpenAI
Equal-Weight S&P 500 (RSP) 25% Dividend (SCHD) 25% Healthcare (XLV) 20% Financials (XLF) 15% Crude Oil (USO) 15%
Claude Opus 5 Anthropic
Equal-Weight S&P 500 (RSP) 30% Financials (XLF) 20% Healthcare (XLV) 20% Dividend (SCHD) 15% Crude Oil (USO) 15%
Grok 4.3 xAI
Dividend (SCHD) 25% Healthcare (XLV) 25% Staples (XLP) 25% Equal-Weight S&P 500 (RSP) 25%
GPT-5.6 Sol OpenAI
Equal-Weight S&P 500 (RSP) 35% Healthcare (XLV) 25% Real Estate (XLRE) 20% US Dollar (UUP) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 28
Audit ID: CB-2026-07-29-1M
ScoredAug 28WindowJul 29 to Aug 28Models8Asset choices70LeaderClaude Fable 5HorizonMonthly
Monthly official result
Monthly result scored Aug 28
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
GPT-5.6 Sol Claude Opus 5 Claude Opus 4.8 Claude Fable 5 Grok 4.3 GPT-5.5 Grok 4.5 Gemini 3.1 Pro S&P 500
ETHA Ethereum ETF
GPT-5.6 Sol OpenAI Claude Opus 5 Anthropic Claude Opus 4.8 Anthropic Claude Fable 5 Anthropic Grok 4.3 xAI GPT-5.5 OpenAI Grok 4.5 xAI Gemini 3.1 Pro Google S&P 500 Benchmark
3.85% ETHA Ethereum ETF - Hindsight best asset
26.78% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
GPT-5.6 Sol OpenAI
Equal-Weight S&P 500 (RSP) 40% Healthcare (XLV) 30% Nasdaq 100 (QQQ) 30%
Claude Opus 5 Anthropic
Equal-Weight S&P 500 (RSP) 30% Financials (XLF) 20% Healthcare (XLV) 20% S&P 500 (SPY) 20% Gold (IAU) 10%
Claude Opus 4.8 Anthropic
Financials (XLF) 30% Healthcare (XLV) 30% Value (IWD) 25% S&P 500 (SPY) 15%
Claude Fable 5 Anthropic
Equal-Weight S&P 500 (RSP) 25% Value (IWD) 25% Financials (XLF) 20% Healthcare (XLV) 15% S&P 500 (SPY) 15%
Grok 4.3 xAI
S&P 500 (SPY) 40% Healthcare (XLV) 20% Financials (XLF) 20% Defense (ITA) 20%
GPT-5.5 OpenAI
Equal-Weight S&P 500 (RSP) 30% Dividend (SCHD) 20% Healthcare (XLV) 20% Financials (XLF) 15% Defense (ITA) 15%
Grok 4.5 xAI
Financials (XLF) 30% Healthcare (XLV) 25% Defense (ITA) 25% Value (IWD) 20%
Gemini 3.1 Pro Google
Defense (ITA) 50% Healthcare (XLV) 50%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 28
Audit ID: CB-2026-07-28-1M
ScoredAug 28WindowJul 28 to Aug 28Models8Asset choices70LeaderGPT-5.6 SolHorizonMonthly
Monthly official result
Monthly result scored Aug 27
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro GPT-5.6 Sol Claude Opus 5 Grok 4.5 Grok 4.3 Claude Opus 4.8 Claude Fable 5 GPT-5.5 S&P 500
ETHA Ethereum ETF
Gemini 3.1 Pro Google GPT-5.6 Sol OpenAI Claude Opus 5 Anthropic Grok 4.5 xAI Grok 4.3 xAI Claude Opus 4.8 Anthropic Claude Fable 5 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
4.33% ETHA Ethereum ETF - Hindsight best asset
28.28% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Healthcare (XLV) 30% Industrials (XLI) 30% Gold (IAU) 40%
GPT-5.6 Sol OpenAI
Equal-Weight S&P 500 (RSP) 50% Healthcare (XLV) 25% Japan (EWJ) 25%
Claude Opus 5 Anthropic
Equal-Weight S&P 500 (RSP) 30% Healthcare (XLV) 20% Financials (XLF) 20% Dividend (SCHD) 15% Energy (XLE) 15%
Grok 4.5 xAI
Financials (XLF) 35% Healthcare (XLV) 30% Equal-Weight S&P 500 (RSP) 20% Energy (XLE) 15%
Grok 4.3 xAI
Dividend (SCHD) 40% Healthcare (XLV) 30% Financials (XLF) 30%
Claude Opus 4.8 Anthropic
Financials (XLF) 30% Healthcare (XLV) 25% Dividend (SCHD) 25% S&P 500 (SPY) 20%
Claude Fable 5 Anthropic
Equal-Weight S&P 500 (RSP) 25% Value (IWD) 25% Financials (XLF) 25% Healthcare (XLV) 25%
GPT-5.5 OpenAI
Dividend (SCHD) 30% Financials (XLF) 20% Healthcare (XLV) 20% Defense (ITA) 15% Value (IWD) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 27
Audit ID: CB-2026-07-27-1M
ScoredAug 27WindowJul 27 to Aug 27Models8Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Aug 24
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Claude Fable 5 Claude Opus 5 Claude Opus 4.8 GPT-5.5 Grok 4.5 GPT-5.6 Sol Grok 4.3 S&P 500
ETHA Ethereum ETF
Gemini 3.1 Pro Google Claude Fable 5 Anthropic Claude Opus 5 Anthropic Claude Opus 4.8 Anthropic GPT-5.5 OpenAI Grok 4.5 xAI GPT-5.6 Sol OpenAI Grok 4.3 xAI S&P 500 Benchmark
3.32% ETHA Ethereum ETF - Hindsight best asset
32.91% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Energy (XLE) 30% Healthcare (XLV) 30%
Claude Fable 5 Anthropic
Value (IWD) 30% Dividend (SCHD) 20% Energy (XLE) 20% Commodities (PDBC) 15% Healthcare (XLV) 15%
Claude Opus 5 Anthropic
S&P 500 (SPY) 35% Healthcare (XLV) 20% Dividend (SCHD) 20% Energy (XLE) 15% Financials (XLF) 10%
Claude Opus 4.8 Anthropic
S&P 500 (SPY) 40% Healthcare (XLV) 25% Financials (XLF) 20% Dividend (SCHD) 15%
GPT-5.5 OpenAI
Dividend (SCHD) 30% Healthcare (XLV) 20% Energy (XLE) 20% Value (IWD) 15% Utilities (XLU) 15%
Grok 4.5 xAI
Energy (XLE) 30% Crude Oil (USO) 20% Commodities (PDBC) 20% Value (IWD) 15% Healthcare (XLV) 15%
GPT-5.6 Sol OpenAI
Semiconductors (SMH) 45% Dividend (SCHD) 30% Energy (XLE) 15% Healthcare (XLV) 10%
Grok 4.3 xAI
Energy (XLE) 40% Industrials (XLI) 30% Utilities (XLU) 30%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 24
Audit ID: CB-2026-07-24-1M
ScoredAug 24WindowJul 24 to Aug 24Models8Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Aug 21
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Fable 5 GPT-5.5 Gemini 3.1 Pro Claude Opus 4.8 Grok 4.5 Grok 4.3 GPT-5.6 Sol S&P 500
ETHA Ethereum ETF
Claude Fable 5 Anthropic GPT-5.5 OpenAI Gemini 3.1 Pro Google Claude Opus 4.8 Anthropic Grok 4.5 xAI Grok 4.3 xAI GPT-5.6 Sol OpenAI S&P 500 Benchmark
3.73% ETHA Ethereum ETF - Hindsight best asset
29.27% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Fable 5 Anthropic
Energy (XLE) 30% Value (IWD) 25% Healthcare (XLV) 20% Dividend (SCHD) 15% Gold (IAU) 10%
GPT-5.5 OpenAI
Energy (XLE) 30% Commodities (PDBC) 25% Dividend (SCHD) 25% Healthcare (XLV) 20%
Gemini 3.1 Pro Google
Energy (XLE) 30% Crude Oil (USO) 20% Gold (IAU) 25% S&P 500 (SPY) 25%
Claude Opus 4.8 Anthropic
Healthcare (XLV) 30% Energy (XLE) 25% Financials (XLF) 20% S&P 500 (SPY) 25%
Grok 4.5 xAI
Energy (XLE) 35% Crude Oil (USO) 15% Healthcare (XLV) 25% S&P 500 (SPY) 25%
Grok 4.3 xAI
S&P 500 (SPY) 50% Energy (XLE) 30% Japan (EWJ) 20%
GPT-5.6 Sol OpenAI
Defense (ITA) 35% Technology (XLK) 25% Energy (XLE) 20% Dividend (SCHD) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 21
Audit ID: CB-2026-07-23-1M
ScoredAug 21WindowJul 23 to Aug 21Models7Asset choices70LeaderClaude Fable 5HorizonMonthly
Monthly official result
Monthly result scored Aug 21
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Grok 4.5 Claude Opus 4.8 GPT-5.5 Grok 4.3 Claude Fable 5 GPT-5.6 Sol S&P 500
ETHA Ethereum ETF
Gemini 3.1 Pro Google Grok 4.5 xAI Claude Opus 4.8 Anthropic GPT-5.5 OpenAI Grok 4.3 xAI Claude Fable 5 Anthropic GPT-5.6 Sol OpenAI S&P 500 Benchmark
2.45% ETHA Ethereum ETF - Hindsight best asset
25.62% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Energy (XLE) 50% Dividend (SCHD) 50%
Grok 4.5 xAI
Energy (XLE) 30% Crude Oil (USO) 20% Healthcare (XLV) 25% Dividend (SCHD) 25%
Claude Opus 4.8 Anthropic
Healthcare (XLV) 30% Financials (XLF) 25% Dividend (SCHD) 25% S&P 500 (SPY) 20%
GPT-5.5 OpenAI
Crude Oil (USO) 40% Dividend (SCHD) 25% Healthcare (XLV) 20% United Kingdom (EWU) 15%
Grok 4.3 xAI
S&P 500 (SPY) 60% Energy (XLE) 20% Healthcare (XLV) 10% Financials (XLF) 10%
Claude Fable 5 Anthropic
Semiconductors (SMH) 30% Taiwan (EWT) 20% Energy (XLE) 15% Dividend (SCHD) 20% S&P 500 (SPY) 15%
GPT-5.6 Sol OpenAI
Semiconductors (SMH) 30% Nasdaq 100 (QQQ) 20% Dividend (SCHD) 20% Japan (EWJ) 15% Energy (XLE) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 21
Audit ID: CB-2026-07-22-1M
ScoredAug 21WindowJul 22 to Aug 21Models7Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Aug 21
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Grok 4.5 Claude Opus 4.8 Grok 4.3 GPT-5.5 Claude Fable 5 GPT-5.6 Sol S&P 500
ETHA Ethereum ETF
Gemini 3.1 Pro Google Grok 4.5 xAI Claude Opus 4.8 Anthropic Grok 4.3 xAI GPT-5.5 OpenAI Claude Fable 5 Anthropic GPT-5.6 Sol OpenAI S&P 500 Benchmark
2.33% ETHA Ethereum ETF - Hindsight best asset
25.53% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Crude Oil (USO) 25% Energy (XLE) 25% Healthcare (XLV) 50%
Grok 4.5 xAI
Energy (XLE) 25% Crude Oil (USO) 25% Biotechnology (XBI) 25% Commodities (PDBC) 25%
Claude Opus 4.8 Anthropic
S&P 500 (SPY) 40% Healthcare (XLV) 30% Dividend (SCHD) 30%
Grok 4.3 xAI
S&P 500 (SPY) 40% Energy (XLE) 20% Small Value (IWN) 20% Healthcare (XLV) 15% Financials (XLF) 5%
GPT-5.5 OpenAI
Semiconductors (SMH) 25% Energy (XLE) 20% Biotechnology (XBI) 20% Dividend (SCHD) 20% Japan (EWJ) 15%
Claude Fable 5 Anthropic
S&P 500 (SPY) 30% Semiconductors (SMH) 30% Energy (XLE) 20% Healthcare (XLV) 20%
GPT-5.6 Sol OpenAI
Semiconductors (SMH) 50% Commodities (PDBC) 30% Dividend (SCHD) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Aug 21
Audit ID: CB-2026-07-21-1M
ScoredAug 21WindowJul 21 to Aug 21Models7Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Aug 17
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.5 Grok 4.3 Claude Opus 4.8 Gemini 3.1 Pro Claude Fable 5 GPT-5.6 Sol GPT-5.5 Claude Opus 4.7 S&P 500
XME Metals and Mining
Grok 4.5 xAI Grok 4.3 xAI Claude Opus 4.8 Anthropic Gemini 3.1 Pro Google Claude Fable 5 Anthropic GPT-5.6 Sol OpenAI GPT-5.5 OpenAI Claude Opus 4.7 Anthropic S&P 500 Benchmark
3.95% XME Metals and Mining - Hindsight best asset
20.08% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.5 xAI
Energy (XLE) 25% Financials (XLF) 25% Healthcare (XLV) 25% Small Value (IWN) 25%
Grok 4.3 xAI
Energy (XLE) 40% Small Value (IWN) 20% Financials (XLF) 20% Real Estate (XLRE) 20%
Claude Opus 4.8 Anthropic
Healthcare (XLV) 30% Financials (XLF) 25% Dividend (SCHD) 25% S&P 500 (SPY) 20%
Gemini 3.1 Pro Google
Crude Oil (USO) 40% Regional Banks (KRE) 30% Healthcare (XLV) 30%
Claude Fable 5 Anthropic
Value (IWD) 25% Equal-Weight S&P 500 (RSP) 25% Healthcare (XLV) 25% Financials (XLF) 25%
GPT-5.6 Sol OpenAI
Small Value (IWN) 30% Healthcare (XLV) 30% Regional Banks (KRE) 25% Energy (XLE) 15%
GPT-5.5 OpenAI
Healthcare (XLV) 30% Financials (XLF) 25% Real Estate (XLRE) 20% Energy (XLE) 15% Equal-Weight S&P 500 (RSP) 10%
Claude Opus 4.7 Anthropic
S&P 500 (SPY) 40% Healthcare (XLV) 25% Financials (XLF) 20% Low Vol (SPLV) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XME Metals and Mining - Hindsight best asset
100% Metals and Mining (XME) hindsight ceiling
Official scored round
Monthly result scored Aug 17
Audit ID: CB-2026-07-17-1M
ScoredAug 17WindowJul 17 to Aug 17Models8Asset choices70LeaderGrok 4.5HorizonMonthly
Monthly official result
Monthly result scored Aug 14
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Grok 4.3 GPT-5.6 Sol GPT-5.5 Grok 4.5 Claude Fable 5 Claude Opus 4.8 Claude Opus 4.7 S&P 500
XME Metals and Mining
Gemini 3.1 Pro Google Grok 4.3 xAI GPT-5.6 Sol OpenAI GPT-5.5 OpenAI Grok 4.5 xAI Claude Fable 5 Anthropic Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic S&P 500 Benchmark
2.85% XME Metals and Mining - Hindsight best asset
13.51% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Energy (XLE) 40% Crude Oil (USO) 30% Defense (ITA) 15% Gold (IAU) 15%
Grok 4.3 xAI
Energy (XLE) 50% Crude Oil (USO) 30% Financials (XLF) 20%
GPT-5.6 Sol OpenAI
Energy (XLE) 35% Crude Oil (USO) 25% Financials (XLF) 20% Cybersecurity (CIBR) 10% Defense (ITA) 10%
GPT-5.5 OpenAI
Crude Oil (USO) 45% Energy (XLE) 25% Commodities (PDBC) 15% Defense (ITA) 10% US Dollar (UUP) 5%
Grok 4.5 xAI
Energy (XLE) 35% Crude Oil (USO) 25% Financials (XLF) 20% Biotechnology (XBI) 10% Value (IWD) 10%
Claude Fable 5 Anthropic
Energy (XLE) 30% Financials (XLF) 20% Commodities (PDBC) 15% Value (IWD) 25% T-Bills (BIL) 10%
Claude Opus 4.8 Anthropic
Financials (XLF) 30% Energy (XLE) 20% Value (IWD) 20% Equal-Weight S&P 500 (RSP) 15% Healthcare (XLV) 15%
Claude Opus 4.7 Anthropic
Financials (XLF) 30% Energy (XLE) 20% Biotechnology (XBI) 15% Value (IWD) 20% T-Bills (BIL) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XME Metals and Mining - Hindsight best asset
100% Metals and Mining (XME) hindsight ceiling
Official scored round
Monthly result scored Aug 14
Audit ID: CB-2026-07-15-1M
ScoredAug 14WindowJul 15 to Aug 14Models8Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Aug 14
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Grok 4.5 Claude Opus 4.8 Claude Opus 4.7 Gemini 3.1 Pro Claude Fable 5 GPT-5.6 Sol GPT-5.5 S&P 500
XME Metals and Mining
Grok 4.3 xAI Grok 4.5 xAI Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic Gemini 3.1 Pro Google Claude Fable 5 Anthropic GPT-5.6 Sol OpenAI GPT-5.5 OpenAI S&P 500 Benchmark
3.26% XME Metals and Mining - Hindsight best asset
12.18% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Energy (XLE) 40% Financials (XLF) 35% S&P 500 (SPY) 25%
Grok 4.5 xAI
Energy (XLE) 30% Crude Oil (USO) 20% Financials (XLF) 25% Biotechnology (XBI) 15% Cybersecurity (CIBR) 10%
Claude Opus 4.8 Anthropic
Financials (XLF) 35% Energy (XLE) 20% Cybersecurity (CIBR) 15% Industrials (XLI) 15% S&P 500 (SPY) 15%
Claude Opus 4.7 Anthropic
Financials (XLF) 30% Energy (XLE) 25% Cybersecurity (CIBR) 20% Biotechnology (XBI) 15% T-Bills (BIL) 10%
Gemini 3.1 Pro Google
Financials (XLF) 30% Energy (XLE) 30% Crude Oil (USO) 20% Semiconductors (SMH) 20%
Claude Fable 5 Anthropic
Financials (XLF) 30% Energy (XLE) 25% Semiconductors (SMH) 20% Value (IWD) 15% T-Bills (BIL) 10%
GPT-5.6 Sol OpenAI
Semiconductors (SMH) 30% Cybersecurity (CIBR) 25% Financials (XLF) 20% Energy (XLE) 15% Biotechnology (XBI) 10%
GPT-5.5 OpenAI
Semiconductors (SMH) 30% Crude Oil (USO) 25% Financials (XLF) 20% Cybersecurity (CIBR) 15% Biotechnology (XBI) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XME Metals and Mining - Hindsight best asset
100% Metals and Mining (XME) hindsight ceiling
Official scored round
Monthly result scored Aug 14
Audit ID: CB-2026-07-14-1M
ScoredAug 14WindowJul 14 to Aug 14Models8Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Aug 13
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Grok 4.5 Grok 4.3 GPT-5.5 GPT-5.6 Sol Claude Fable 5 Claude Opus 4.7 Claude Opus 4.8 S&P 500
IGV Software
Gemini 3.1 Pro Google Grok 4.5 xAI Grok 4.3 xAI GPT-5.5 OpenAI GPT-5.6 Sol OpenAI Claude Fable 5 Anthropic Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic S&P 500 Benchmark
3.83% IGV Software - Hindsight best asset
14.65% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Crude Oil (USO) 30% Energy (XLE) 30% Defense (ITA) 20% Gold (IAU) 20%
Grok 4.5 xAI
Energy (XLE) 35% Crude Oil (USO) 25% Financials (XLF) 20% Healthcare (XLV) 15% Value (IWD) 5%
Grok 4.3 xAI
Energy (XLE) 50% Financials (XLF) 30% Healthcare (XLV) 20%
GPT-5.5 OpenAI
Crude Oil (USO) 45% Energy (XLE) 25% Commodities (PDBC) 15% US Dollar (UUP) 10% Defense (ITA) 5%
GPT-5.6 Sol OpenAI
Energy (XLE) 35% Crude Oil (USO) 25% Financials (XLF) 15% Healthcare (XLV) 15% US Dollar (UUP) 10%
Claude Fable 5 Anthropic
Energy (XLE) 30% Crude Oil (USO) 10% Value (IWD) 25% Low Vol (SPLV) 20% T-Bills (BIL) 15%
Claude Opus 4.7 Anthropic
Energy (XLE) 30% Healthcare (XLV) 20% Low Vol (SPLV) 15% T-Bills (BIL) 15% Financials (XLF) 20%
Claude Opus 4.8 Anthropic
Energy (XLE) 25% Healthcare (XLV) 20% Financials (XLF) 20% Low Vol (SPLV) 20% T-Bills (BIL) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
IGV Software - Hindsight best asset
100% Software (IGV) hindsight ceiling
Official scored round
Monthly result scored Aug 13
Audit ID: CB-2026-07-13-1M
ScoredAug 13WindowJul 13 to Aug 13Models8Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Aug 10
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Claude Opus 4.7 GPT-5.5 GPT-5.6 Sol Grok 4.3 Claude Fable 5 Grok 4.5 Gemini 3.1 Pro S&P 500
USO Crude Oil
Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic GPT-5.5 OpenAI GPT-5.6 Sol OpenAI Grok 4.3 xAI Claude Fable 5 Anthropic Grok 4.5 xAI Gemini 3.1 Pro Google S&P 500 Benchmark
2.39% USO Crude Oil - Hindsight best asset
15.84% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Financials (XLF) 25% Industrials (XLI) 20% Taiwan (EWT) 15% Cybersecurity (CIBR) 10%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Financials (XLF) 20% Biotechnology (XBI) 15% Cybersecurity (CIBR) 15% Taiwan (EWT) 20%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% Taiwan (EWT) 20% Cybersecurity (CIBR) 20% Financials (XLF) 15% Biotechnology (XBI) 10%
GPT-5.6 Sol OpenAI
Semiconductors (SMH) 40% Cybersecurity (CIBR) 20% Biotechnology (XBI) 20% Financials (XLF) 10% Taiwan (EWT) 10%
Grok 4.3 xAI
Semiconductors (SMH) 50% Technology (XLK) 30% Cybersecurity (CIBR) 20%
Claude Fable 5 Anthropic
Semiconductors (SMH) 35% Taiwan (EWT) 15% Nasdaq 100 (QQQ) 20% Financials (XLF) 15% Industrials (XLI) 15%
Grok 4.5 xAI
Semiconductors (SMH) 40% Taiwan (EWT) 25% Technology (XLK) 20% Nasdaq 100 (QQQ) 15%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% South Korea (EWY) 30% Taiwan (EWT) 30%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Aug 10
Audit ID: CB-2026-07-10-1M
ScoredAug 10WindowJul 10 to Aug 10Models8Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Aug 7
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.7 Claude Opus 4.8 Gemini 3.1 Pro Claude Fable 5 GPT-5.5 Grok 4.5 S&P 500
XME Metals and Mining
Grok 4.3 xAI Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic Gemini 3.1 Pro Google Claude Fable 5 Anthropic GPT-5.5 OpenAI Grok 4.5 xAI S&P 500 Benchmark
2.87% XME Metals and Mining - Hindsight best asset
12.11% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Energy (XLE) 40% Defense (ITA) 30% Financials (XLF) 30%
Claude Opus 4.7 Anthropic
Cybersecurity (CIBR) 30% Financials (XLF) 25% Healthcare (XLV) 20% Semiconductors (SMH) 15% T-Bills (BIL) 10%
Claude Opus 4.8 Anthropic
Financials (XLF) 25% Healthcare (XLV) 20% Semiconductors (SMH) 20% S&P 500 (SPY) 20% Cybersecurity (CIBR) 15%
Gemini 3.1 Pro Google
Semiconductors (SMH) 30% Defense (ITA) 25% Energy (XLE) 25% T-Bills (BIL) 20%
Claude Fable 5 Anthropic
Semiconductors (SMH) 25% Nasdaq 100 (QQQ) 20% Biotechnology (XBI) 15% Financials (XLF) 15% Energy (XLE) 25%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% Cybersecurity (CIBR) 25% Biotechnology (XBI) 20% Crude Oil (USO) 10% Financials (XLF) 10%
Grok 4.5 xAI
Semiconductors (SMH) 30% Biotechnology (XBI) 25% Cybersecurity (CIBR) 20% Financials (XLF) 15% Taiwan (EWT) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XME Metals and Mining - Hindsight best asset
100% Metals and Mining (XME) hindsight ceiling
Official scored round
Monthly result scored Aug 7
Audit ID: CB-2026-07-09-1M
ScoredAug 7WindowJul 9 to Aug 7Models7Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Aug 7
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Gemini 3.1 Pro Claude Fable 5 Claude Opus 4.7 Claude Opus 4.8 Grok 4.5 GPT-5.5 S&P 500
XME Metals and Mining
Grok 4.3 xAI Gemini 3.1 Pro Google Claude Fable 5 Anthropic Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic Grok 4.5 xAI GPT-5.5 OpenAI S&P 500 Benchmark
3.74% XME Metals and Mining - Hindsight best asset
13.54% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Value (IWD) 30% Healthcare (XLV) 25% Financials (XLF) 20% Industrials (XLI) 15% Energy (XLE) 10%
Gemini 3.1 Pro Google
Energy (XLE) 30% Crude Oil (USO) 20% Healthcare (XLV) 25% T-Bills (BIL) 25%
Claude Fable 5 Anthropic
Healthcare (XLV) 25% Value (IWD) 20% Financials (XLF) 20% Biotechnology (XBI) 15% Energy (XLE) 20%
Claude Opus 4.7 Anthropic
Healthcare (XLV) 30% Financials (XLF) 25% Low Vol (SPLV) 20% Utilities (XLU) 15% Cybersecurity (CIBR) 10%
Claude Opus 4.8 Anthropic
Financials (XLF) 25% Healthcare (XLV) 25% Low Vol (SPLV) 20% Utilities (XLU) 15% Defense (ITA) 15%
Grok 4.5 xAI
Biotechnology (XBI) 35% Healthcare (XLV) 20% Financials (XLF) 20% Energy (XLE) 15% Value (IWD) 10%
GPT-5.5 OpenAI
Biotechnology (XBI) 35% Semiconductors (SMH) 25% Healthcare (XLV) 15% Financials (XLF) 15% Crude Oil (USO) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XME Metals and Mining - Hindsight best asset
100% Metals and Mining (XME) hindsight ceiling
Official scored round
Monthly result scored Aug 7
Audit ID: CB-2026-07-08-1M
ScoredAug 7WindowJul 8 to Aug 7Models7Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Aug 7
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
GPT-5.5 Gemini 3.1 Pro Grok 4.3 Claude Opus 4.7 Claude Opus 4.8 Claude Fable 5 S&P 500
XME Metals and Mining
GPT-5.5 OpenAI Gemini 3.1 Pro Google Grok 4.3 xAI Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic Claude Fable 5 Anthropic S&P 500 Benchmark
3.42% XME Metals and Mining - Hindsight best asset
12.95% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
GPT-5.5 OpenAI
Crude Oil (USO) 25% Energy (XLE) 20% Semiconductors (SMH) 20% Financials (XLF) 20% Biotechnology (XBI) 15%
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Energy (XLE) 20% Financials (XLF) 20% Healthcare (XLV) 20%
Grok 4.3 xAI
Value (IWD) 30% Financials (XLF) 25% Healthcare (XLV) 20% Small Value (IWN) 15% Energy (XLE) 10%
Claude Opus 4.7 Anthropic
Financials (XLF) 25% Healthcare (XLV) 20% Value (IWD) 20% Low Vol (SPLV) 15% Defense (ITA) 20%
Claude Opus 4.8 Anthropic
Financials (XLF) 25% Healthcare (XLV) 25% Value (IWD) 20% Industrials (XLI) 15% T-Bills (BIL) 15%
Claude Fable 5 Anthropic
Financials (XLF) 25% Healthcare (XLV) 20% Value (IWD) 20% Energy (XLE) 15% Biotechnology (XBI) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XME Metals and Mining - Hindsight best asset
100% Metals and Mining (XME) hindsight ceiling
Official scored round
Monthly result scored Aug 7
Audit ID: CB-2026-07-07-1M
ScoredAug 7WindowJul 7 to Aug 7Models6Asset choices70LeaderGPT-5.5HorizonMonthly
Monthly official result
Monthly result scored Aug 6
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Claude Opus 4.7 Grok 4.3 Gemini 3.1 Pro GPT-5.5 Claude Fable 5 S&P 500
USO Crude Oil
Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic Grok 4.3 xAI Gemini 3.1 Pro Google GPT-5.5 OpenAI Claude Fable 5 Anthropic S&P 500 Benchmark
2.30% USO Crude Oil - Hindsight best asset
13.91% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Financials (XLF) 25% Industrials (XLI) 20% Healthcare (XLV) 20% S&P 500 (SPY) 20% Defense (ITA) 15%
Claude Opus 4.7 Anthropic
Financials (XLF) 25% Industrials (XLI) 20% Defense (ITA) 15% Healthcare (XLV) 20% Equal-Weight S&P 500 (RSP) 20%
Grok 4.3 xAI
Small Cap (IWM) 25% Financials (XLF) 25% Industrials (XLI) 25% Defense (ITA) 25%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% Financials (XLF) 30% Small Cap (IWM) 30%
GPT-5.5 OpenAI
Taiwan (EWT) 30% Semiconductors (SMH) 25% Financials (XLF) 20% Cybersecurity (CIBR) 15% Defense (ITA) 10%
Claude Fable 5 Anthropic
Semiconductors (SMH) 25% Financials (XLF) 20% Industrials (XLI) 15% Healthcare (XLV) 15% Taiwan (EWT) 25%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Aug 6
Audit ID: CB-2026-07-06-1M
ScoredAug 6WindowJul 6 to Aug 6Models6Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jul 31
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Gemini 3.1 Pro Claude Opus 4.8 Claude Opus 4.7 Claude Fable 5 GPT-5.5 S&P 500
USO Crude Oil
Grok 4.3 xAI Gemini 3.1 Pro Google Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic Claude Fable 5 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
0.30% USO Crude Oil - Hindsight best asset
24.23% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Value (IWD) 25% Financials (XLF) 25% Healthcare (XLV) 25% Low Vol (SPLV) 25%
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Healthcare (XLV) 20% Financials (XLF) 20% T-Bills (BIL) 20%
Claude Opus 4.8 Anthropic
Financials (XLF) 25% Healthcare (XLV) 20% Value (IWD) 20% Defense (ITA) 15% Equal-Weight S&P 500 (RSP) 20%
Claude Opus 4.7 Anthropic
Financials (XLF) 25% Healthcare (XLV) 25% Equal-Weight S&P 500 (RSP) 20% Defense (ITA) 15% T-Bills (BIL) 15%
Claude Fable 5 Anthropic
Healthcare (XLV) 25% Biotechnology (XBI) 20% Financials (XLF) 20% Value (IWD) 20% Small Value (IWN) 15%
GPT-5.5 OpenAI
Healthcare (XLV) 30% Biotechnology (XBI) 25% Financials (XLF) 20% Regional Banks (KRE) 15% Defense (ITA) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 31
Audit ID: CB-2026-07-02-1M
ScoredJul 31WindowJul 2 to Jul 31Models6Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jul 31
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Claude Opus 4.8 Grok 4.3 Claude Opus 4.7 Claude Fable 5 GPT-5.5 S&P 500
USO Crude Oil
Gemini 3.1 Pro Google Claude Opus 4.8 Anthropic Grok 4.3 xAI Claude Opus 4.7 Anthropic Claude Fable 5 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
0.17% USO Crude Oil - Hindsight best asset
25.08% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Healthcare (XLV) 20% Financials (XLF) 20% T-Bills (BIL) 20%
Claude Opus 4.8 Anthropic
Financials (XLF) 25% Industrials (XLI) 20% Healthcare (XLV) 20% Regional Banks (KRE) 15% Equal-Weight S&P 500 (RSP) 20%
Grok 4.3 xAI
Small Value (IWN) 30% Financials (XLF) 25% Healthcare (XLV) 25% Industrials (XLI) 20%
Claude Opus 4.7 Anthropic
Healthcare (XLV) 30% Financials (XLF) 25% Industrials (XLI) 15% Equal-Weight S&P 500 (RSP) 15% Biotechnology (XBI) 15%
Claude Fable 5 Anthropic
Healthcare (XLV) 25% Small Value (IWN) 20% Financials (XLF) 20% Equal-Weight S&P 500 (RSP) 20% Biotechnology (XBI) 15%
GPT-5.5 OpenAI
Regional Banks (KRE) 30% Biotechnology (XBI) 25% Small Value (IWN) 20% Financials (XLF) 15% Industrials (XLI) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 31
Audit ID: CB-2026-07-01-1M
ScoredJul 31WindowJul 1 to Jul 31Models6Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Jul 30
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Grok 4.3 Claude Opus 4.7 Gemini 3.1 Pro GPT-5.5 S&P 500
ETHA Ethereum ETF
Claude Opus 4.8 Anthropic Grok 4.3 xAI Claude Opus 4.7 Anthropic Gemini 3.1 Pro Google GPT-5.5 OpenAI S&P 500 Benchmark
-0.68% ETHA Ethereum ETF - Hindsight best asset
22.04% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Industrials (XLI) 25% Financials (XLF) 20% Healthcare (XLV) 20% Equal-Weight S&P 500 (RSP) 20% Regional Banks (KRE) 15%
Grok 4.3 xAI
Small Cap (IWM) 30% Biotechnology (XBI) 25% Industrials (XLI) 20% Healthcare (XLV) 15% Momentum (MTUM) 10%
Claude Opus 4.7 Anthropic
Industrials (XLI) 25% Biotechnology (XBI) 20% Mid Cap (IJH) 20% Healthcare (XLV) 15% Semiconductors (SMH) 20%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% Small Cap (IWM) 30% Healthcare (XLV) 30%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% Biotechnology (XBI) 20% Taiwan (EWT) 15% Momentum (MTUM) 15% Industrials (XLI) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Jul 30
Audit ID: CB-2026-06-30-1M
ScoredJul 30WindowJun 30 to Jul 30Models5Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jul 29
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.8 Claude Opus 4.7 GPT-5.5 Gemini 3.1 Pro S&P 500
USO Crude Oil
Grok 4.3 xAI Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic GPT-5.5 OpenAI Gemini 3.1 Pro Google S&P 500 Benchmark
-1.56% USO Crude Oil - Hindsight best asset
20.76% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Healthcare (XLV) 30% Biotechnology (XBI) 25% Industrials (XLI) 20% Small Value (IWN) 15% Low Vol (SPLV) 10%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 25% Industrials (XLI) 20% Healthcare (XLV) 20% Financials (XLF) 20% S&P 500 (SPY) 15%
Claude Opus 4.7 Anthropic
Healthcare (XLV) 25% Industrials (XLI) 20% Semiconductors (SMH) 20% Equal-Weight S&P 500 (RSP) 20% Long Treasury (TLT) 15%
GPT-5.5 OpenAI
Semiconductors (SMH) 40% Biotechnology (XBI) 20% Regional Banks (KRE) 15% Healthcare (XLV) 15% Small Value (IWN) 10%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% Nasdaq 100 (QQQ) 30% Comms (XLC) 15% Discretionary (XLY) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 29
Audit ID: CB-2026-06-29-1M
ScoredJul 29WindowJun 29 to Jul 29Models5Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jul 24
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 GPT-5.5 Claude Opus 4.7 Grok 4.3 Gemini 3.1 Pro S&P 500
USO Crude Oil
Claude Opus 4.8 Anthropic GPT-5.5 OpenAI Claude Opus 4.7 Anthropic Grok 4.3 xAI Gemini 3.1 Pro Google S&P 500 Benchmark
1.36% USO Crude Oil - Hindsight best asset
29.59% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Healthcare (XLV) 30% Financials (XLF) 20% Industrials (XLI) 15% Equal-Weight S&P 500 (RSP) 20% Low Vol (SPLV) 15%
GPT-5.5 OpenAI
Biotechnology (XBI) 30% Regional Banks (KRE) 25% Small Value (IWN) 20% Healthcare (XLV) 15% Energy (XLE) 10%
Claude Opus 4.7 Anthropic
Healthcare (XLV) 30% Regional Banks (KRE) 20% Biotechnology (XBI) 15% Equal-Weight S&P 500 (RSP) 20% Long Treasury (TLT) 15%
Grok 4.3 xAI
Biotechnology (XBI) 30% Healthcare (XLV) 25% Small Value (IWN) 25% Regional Banks (KRE) 20%
Gemini 3.1 Pro Google
Healthcare (XLV) 40% Biotechnology (XBI) 30% Small Cap (IWM) 15% Equal-Weight S&P 500 (RSP) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 24
Audit ID: CB-2026-06-26-1M
ScoredJul 24WindowJun 26 to Jul 24Models5Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jul 24
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.8 Claude Opus 4.7 GPT-5.5 Gemini 3.1 Pro S&P 500
USO Crude Oil
Grok 4.3 xAI Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic GPT-5.5 OpenAI Gemini 3.1 Pro Google S&P 500 Benchmark
0.63% USO Crude Oil - Hindsight best asset
25.05% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Small Cap (IWM) 30% Biotechnology (XBI) 25% Industrials (XLI) 20% Healthcare (XLV) 15% Equal-Weight S&P 500 (RSP) 10%
Claude Opus 4.8 Anthropic
Industrials (XLI) 25% Healthcare (XLV) 20% Value (IWD) 20% Financials (XLF) 15% Semiconductors (SMH) 20%
Claude Opus 4.7 Anthropic
Biotechnology (XBI) 25% Industrials (XLI) 20% Healthcare (XLV) 15% Semiconductors (SMH) 20% Regional Banks (KRE) 20%
GPT-5.5 OpenAI
Semiconductors (SMH) 30% Biotechnology (XBI) 25% Regional Banks (KRE) 20% Small Value (IWN) 15% Industrials (XLI) 10%
Gemini 3.1 Pro Google
Semiconductors (SMH) 50% Technology (XLK) 30% Equal-Weight S&P 500 (RSP) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 24
Audit ID: CB-2026-06-25-1M
ScoredJul 24WindowJun 25 to Jul 24Models5Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jul 24
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Grok 4.3 Gemini 3.1 Pro GPT-5.5 Claude Opus 4.7 S&P 500
USO Crude Oil
Claude Opus 4.8 Anthropic Grok 4.3 xAI Gemini 3.1 Pro Google GPT-5.5 OpenAI Claude Opus 4.7 Anthropic S&P 500 Benchmark
0.78% USO Crude Oil - Hindsight best asset
28.60% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Industrials (XLI) 25% Financials (XLF) 20% Equal-Weight S&P 500 (RSP) 20% Healthcare (XLV) 15% Semiconductors (SMH) 20%
Grok 4.3 xAI
Small Cap (IWM) 30% Biotechnology (XBI) 25% Regional Banks (KRE) 20% Mid Cap (IJH) 15% Equal-Weight S&P 500 (RSP) 10%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% Small Cap (IWM) 30% Healthcare (XLV) 30%
GPT-5.5 OpenAI
Semiconductors (SMH) 40% Biotechnology (XBI) 20% Regional Banks (KRE) 15% Small Value (IWN) 15% Industrials (XLI) 10%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Industrials (XLI) 20% Mid Cap (IJH) 20% Biotechnology (XBI) 15% Long Treasury (TLT) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 24
Audit ID: CB-2026-06-24-1M
ScoredJul 24WindowJun 24 to Jul 24Models5Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jul 23
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Grok 4.3 GPT-5.5 Claude Opus 4.7 Claude Opus 4.8 S&P 500
USO Crude Oil
Gemini 3.1 Pro Google Grok 4.3 xAI GPT-5.5 OpenAI Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic S&P 500 Benchmark
0.63% USO Crude Oil - Hindsight best asset
25.37% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% T-Bills (BIL) 20% Healthcare (XLV) 20% Gold (IAU) 10% US Dollar (UUP) 10%
Grok 4.3 xAI
Small Cap (IWM) 30% Biotechnology (XBI) 25% Momentum (MTUM) 20% Small Value (IWN) 15% Regional Banks (KRE) 10%
GPT-5.5 OpenAI
Biotechnology (XBI) 30% Momentum (MTUM) 25% Regional Banks (KRE) 20% Small Cap (IWM) 15% Taiwan (EWT) 10%
Claude Opus 4.7 Anthropic
Small Cap (IWM) 25% Momentum (MTUM) 20% Biotechnology (XBI) 20% Industrials (XLI) 15% Long Treasury (TLT) 20%
Claude Opus 4.8 Anthropic
Momentum (MTUM) 25% Industrials (XLI) 20% Small Cap (IWM) 20% Biotechnology (XBI) 15% Taiwan (EWT) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 23
Audit ID: CB-2026-06-23-1M
ScoredJul 23WindowJun 23 to Jul 23Models5Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Jul 22
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Claude Opus 4.7 Claude Opus 4.8 Grok 4.3 GPT-5.5 S&P 500
USO Crude Oil
Gemini 3.1 Pro Google Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic Grok 4.3 xAI GPT-5.5 OpenAI S&P 500 Benchmark
0.41% USO Crude Oil - Hindsight best asset
16.85% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Technology (XLK) 20% Small Cap (IWM) 15% Healthcare (XLV) 15% T-Bills (BIL) 10%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Taiwan (EWT) 20% Industrials (XLI) 20% S&P 500 (SPY) 20% Gold (IAU) 10%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% S&P 500 (SPY) 30% Momentum (MTUM) 20% Industrials (XLI) 10% Taiwan (EWT) 10%
Grok 4.3 xAI
Semiconductors (SMH) 40% Momentum (MTUM) 25% Small Cap (IWM) 20% S&P 500 (SPY) 15%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% Momentum (MTUM) 25% Taiwan (EWT) 20% South Korea (EWY) 10% Biotechnology (XBI) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
USO Crude Oil - Hindsight best asset
100% Crude Oil (USO) hindsight ceiling
Official scored round
Monthly result scored Jul 22
Audit ID: CB-2026-06-22-1M
ScoredJul 22WindowJun 22 to Jul 22Models5Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Jul 20
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Grok 4.3 Gemini 3.1 Pro Claude Opus 4.7 GPT-5.5 S&P 500
ETHA Ethereum ETF
Claude Opus 4.8 Anthropic Grok 4.3 xAI Gemini 3.1 Pro Google Claude Opus 4.7 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
-0.62% ETHA Ethereum ETF - Hindsight best asset
11.26% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
S&P 500 (SPY) 40% Semiconductors (SMH) 25% Nasdaq 100 (QQQ) 20% Industrials (XLI) 10% Gold (IAU) 5%
Grok 4.3 xAI
Semiconductors (SMH) 30% Momentum (MTUM) 25% Nasdaq 100 (QQQ) 20% Small Cap (IWM) 15% S&P 500 (SPY) 10%
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Technology (XLK) 30% Semiconductors (SMH) 15% South Korea (EWY) 15%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 35% South Korea (EWY) 20% Nasdaq 100 (QQQ) 25% Industrials (XLI) 10% Gold (IAU) 10%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% Taiwan (EWT) 20% South Korea (EWY) 20% Momentum (MTUM) 15% Biotechnology (XBI) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
ETHA Ethereum ETF - Hindsight best asset
100% Ethereum ETF (ETHA) hindsight ceiling
Official scored round
Monthly result scored Jul 20
Audit ID: CB-2026-06-18-1M
ScoredJul 20WindowJun 18 to Jul 20Models5Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jul 17
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Claude Opus 4.7 Grok 4.3 GPT-5.5 Gemini 3.1 Pro S&P 500
XBI Biotechnology
Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic Grok 4.3 xAI GPT-5.5 OpenAI Gemini 3.1 Pro Google S&P 500 Benchmark
0.57% XBI Biotechnology - Hindsight best asset
10.77% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Momentum (MTUM) 20% Taiwan (EWT) 15% Industrials (XLI) 20% T-Bills (BIL) 15%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 35% Industrials (XLI) 20% Defense (ITA) 15% Momentum (MTUM) 20% Gold (IAU) 10%
Grok 4.3 xAI
Semiconductors (SMH) 40% Momentum (MTUM) 30% Defense (ITA) 20% Biotechnology (XBI) 10%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% South Korea (EWY) 25% Taiwan (EWT) 15% Momentum (MTUM) 15% Defense (ITA) 10%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% South Korea (EWY) 30% Technology (XLK) 30%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 17
Audit ID: CB-2026-06-17-1M
ScoredJul 17WindowJun 17 to Jul 17Models5Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jul 16
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.7 Claude Opus 4.8 Gemini 3.1 Pro GPT-5.5 S&P 500
XBI Biotechnology
Grok 4.3 xAI Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic Gemini 3.1 Pro Google GPT-5.5 OpenAI S&P 500 Benchmark
0.31% XBI Biotechnology - Hindsight best asset
12.42% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Semiconductors (SMH) 35% Small Cap (IWM) 25% Momentum (MTUM) 20% Defense (ITA) 20%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Defense (ITA) 20% Momentum (MTUM) 20% Financials (XLF) 15% Gold (IAU) 15%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Momentum (MTUM) 25% South Korea (EWY) 15% Industrials (XLI) 15% Gold (IAU) 15%
Gemini 3.1 Pro Google
Semiconductors (SMH) 30% South Korea (EWY) 20% Technology (XLK) 20% Momentum (MTUM) 20% S&P 500 (SPY) 10%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% South Korea (EWY) 25% Taiwan (EWT) 20% Momentum (MTUM) 10% Defense (ITA) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 16
Audit ID: CB-2026-06-16-1M
ScoredJul 16WindowJun 16 to Jul 16Models5Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jul 15
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Grok 4.3 Claude Opus 4.8 Claude Opus 4.7 GPT-5.5 S&P 500
XBI Biotechnology
Gemini 3.1 Pro Google Grok 4.3 xAI Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
0.25% XBI Biotechnology - Hindsight best asset
14.64% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Nasdaq 100 (QQQ) 40% Semiconductors (SMH) 30% S&P 500 (SPY) 20% Gold (IAU) 10%
Grok 4.3 xAI
Semiconductors (SMH) 40% Nasdaq 100 (QQQ) 30% Momentum (MTUM) 20% Small Cap (IWM) 10%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Nasdaq 100 (QQQ) 25% Momentum (MTUM) 20% Taiwan (EWT) 15% Gold (IAU) 10%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 35% Momentum (MTUM) 20% South Korea (EWY) 15% Nasdaq 100 (QQQ) 20% Gold (IAU) 10%
GPT-5.5 OpenAI
Semiconductors (SMH) 40% South Korea (EWY) 25% Taiwan (EWT) 15% AI Tech (AIQ) 10% Momentum (MTUM) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 15
Audit ID: CB-2026-06-15-1M
ScoredJul 15WindowJun 15 to Jul 15Models5Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Jul 13
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Grok 4.3 Claude Opus 4.8 Claude Opus 4.7 GPT-5.5 S&P 500
XBI Biotechnology
Gemini 3.1 Pro Google Grok 4.3 xAI Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
1.26% XBI Biotechnology - Hindsight best asset
16.22% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Nasdaq 100 (QQQ) 30% T-Bills (BIL) 30%
Grok 4.3 xAI
Small Value (IWN) 30% Momentum (MTUM) 30% Semiconductors (SMH) 25% Technology (XLK) 15%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Momentum (MTUM) 25% Regional Banks (KRE) 15% Mid Cap (IJH) 15% Technology (XLK) 15%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Momentum (MTUM) 25% Small Cap (IWM) 15% Taiwan (EWT) 15% Treasury (IEF) 15%
GPT-5.5 OpenAI
Semiconductors (SMH) 40% South Korea (EWY) 20% Taiwan (EWT) 15% Momentum (MTUM) 15% Regional Banks (KRE) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 13
Audit ID: CB-2026-06-13-1M
ScoredJul 13WindowJun 12 to Jul 13Models5Asset choices70LeaderGemini 3.1 ProHorizonMonthly
Monthly official result
Monthly result scored Jul 13
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.8 Gemini 3.1 Pro Claude Opus 4.7 GPT-5.5 Claude Fable 5 S&P 500
XBI Biotechnology
Grok 4.3 xAI Claude Opus 4.8 Anthropic Gemini 3.1 Pro Google Claude Opus 4.7 Anthropic GPT-5.5 OpenAI Claude Fable 5 Anthropic S&P 500 Benchmark
1.81% XBI Biotechnology - Hindsight best asset
17.14% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Energy (XLE) 35% Financials (XLF) 30% Healthcare (XLV) 35%
Claude Opus 4.8 Anthropic
Healthcare (XLV) 25% Defense (ITA) 20% Semiconductors (SMH) 20% Dividend (SCHD) 20% T-Bills (BIL) 15%
Gemini 3.1 Pro Google
Technology (XLK) 30% Energy (XLE) 30% S&P 500 (SPY) 40%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Defense (ITA) 20% Healthcare (XLV) 20% Equal-Weight S&P 500 (RSP) 20% T-Bills (BIL) 10%
GPT-5.5 OpenAI
Semiconductors (SMH) 35% Cybersecurity (CIBR) 20% Regional Banks (KRE) 20% Defense (ITA) 15% South Korea (EWY) 10%
Claude Fable 5 Anthropic
Semiconductors (SMH) 30% South Korea (EWY) 15% Taiwan (EWT) 10% Momentum (MTUM) 20% Energy (XLE) 25%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 13
Audit ID: CB-2026-06-12-1M
ScoredJul 13WindowJun 11 to Jul 13Models6Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jul 9
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 GPT-5.5 Claude Opus 4.7 Grok 4.3 Claude Fable 5 Gemini 3.1 Pro S&P 500
XBI Biotechnology
Claude Opus 4.8 Anthropic GPT-5.5 OpenAI Claude Opus 4.7 Anthropic Grok 4.3 xAI Claude Fable 5 Anthropic Gemini 3.1 Pro Google S&P 500 Benchmark
2.25% XBI Biotechnology - Hindsight best asset
25.16% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Healthcare (XLV) 30% Dividend (SCHD) 20% Value (IWD) 20% Defense (ITA) 15% T-Bills (BIL) 15%
GPT-5.5 OpenAI
Healthcare (XLV) 30% Energy (XLE) 25% Financials (XLF) 20% Defense (ITA) 15% Equal-Weight S&P 500 (RSP) 10%
Claude Opus 4.7 Anthropic
Healthcare (XLV) 30% Dividend (SCHD) 25% Low Vol (SPLV) 20% Staples (XLP) 15% Defense (ITA) 10%
Grok 4.3 xAI
Healthcare (XLV) 40% Energy (XLE) 30% Defense (ITA) 30%
Claude Fable 5 Anthropic
Healthcare (XLV) 30% Energy (XLE) 25% Low Vol (SPLV) 15% Staples (XLP) 15% Value (IWD) 15%
Gemini 3.1 Pro Google
T-Bills (BIL) 30% Healthcare (XLV) 25% Gold (IAU) 20% Energy (XLE) 15% Staples (XLP) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 9
Audit ID: CB-2026-06-09-1M
ScoredJul 9WindowJun 9 to Jul 9Models6Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jul 8
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.7 Claude Opus 4.8 Grok 4.3 Gemini 3.1 Pro GPT-5.5 S&P 500
XBI Biotechnology
Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic Grok 4.3 xAI Gemini 3.1 Pro Google GPT-5.5 OpenAI S&P 500 Benchmark
1.09% XBI Biotechnology - Hindsight best asset
27.01% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.7 Anthropic
Healthcare (XLV) 25% Defense (ITA) 20% Semiconductors (SMH) 20% Industrials (XLI) 20% Dividend (SCHD) 15%
Claude Opus 4.8 Anthropic
Healthcare (XLV) 30% Energy (XLE) 25% Defense (ITA) 20% Industrials (XLI) 15% T-Bills (BIL) 10%
Grok 4.3 xAI
Energy (XLE) 40% Healthcare (XLV) 30% Industrials (XLI) 30%
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Technology (XLK) 20% Healthcare (XLV) 15% T-Bills (BIL) 15% Gold (IAU) 10%
GPT-5.5 OpenAI
Energy (XLE) 35% Crude Oil (USO) 25% Semiconductors (SMH) 25% Healthcare (XLV) 10% US Dollar (UUP) 5%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 8
Audit ID: CB-2026-06-08-1M
ScoredJul 8WindowJun 8 to Jul 8Models5Asset choices70LeaderClaude Opus 4.7HorizonMonthly
Monthly official result
Monthly result scored Jul 6
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.7 Gemini 3.1 Pro Claude Opus 4.8 GPT-5.5 S&P 500
XBI Biotechnology
Grok 4.3 xAI Claude Opus 4.7 Anthropic Gemini 3.1 Pro Google Claude Opus 4.8 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
2.12% XBI Biotechnology - Hindsight best asset
25.10% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Energy (XLE) 30% Healthcare (XLV) 25% Financials (XLF) 25% Industrials (XLI) 20%
Claude Opus 4.7 Anthropic
Healthcare (XLV) 25% Defense (ITA) 20% Energy (XLE) 20% Dividend (SCHD) 20% T-Bills (BIL) 15%
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Technology (XLK) 20% Healthcare (XLV) 15% Treasury (IEF) 15% Gold (IAU) 10%
Claude Opus 4.8 Anthropic
Healthcare (XLV) 30% Energy (XLE) 25% T-Bills (BIL) 20% Defense (ITA) 15% Dividend (SCHD) 10%
GPT-5.5 OpenAI
Energy (XLE) 30% Crude Oil (USO) 20% Semiconductors (SMH) 20% Cybersecurity (CIBR) 15% Defense (ITA) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 6
Audit ID: CB-2026-06-05-1M
ScoredJul 6WindowJun 5 to Jul 6Models5Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jul 2
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.7 Claude Opus 4.8 Grok 4.3 Gemini 3.1 Pro GPT-5.5 S&P 500
XBI Biotechnology
Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic Grok 4.3 xAI Gemini 3.1 Pro Google GPT-5.5 OpenAI S&P 500 Benchmark
-1.70% XBI Biotechnology - Hindsight best asset
25.71% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Technology (XLK) 25% Cybersecurity (CIBR) 15% Gold (IAU) 15% Defense (ITA) 15%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Technology (XLK) 25% Taiwan (EWT) 15% S&P 500 (SPY) 20% Gold (IAU) 10%
Grok 4.3 xAI
Technology (XLK) 35% Semiconductors (SMH) 35% Cybersecurity (CIBR) 30%
Gemini 3.1 Pro Google
Technology (XLK) 30% Semiconductors (SMH) 25% AI Tech (AIQ) 25% Momentum (MTUM) 20%
GPT-5.5 OpenAI
Semiconductors (SMH) 30% Cybersecurity (CIBR) 25% AI Tech (AIQ) 20% South Korea (EWY) 15% Metals and Mining (XME) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 2
Audit ID: CB-2026-06-03-1M
ScoredJul 2WindowJun 2 to Jul 2Models5Asset choices70LeaderClaude Opus 4.7HorizonMonthly
Monthly official result
Monthly result scored Jul 1
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Gemini 3.1 Pro Claude Opus 4.7 Claude Opus 4.8 GPT-5.5 S&P 500
XBI Biotechnology
Grok 4.3 xAI Gemini 3.1 Pro Google Claude Opus 4.7 Anthropic Claude Opus 4.8 Anthropic GPT-5.5 OpenAI S&P 500 Benchmark
-1.43% XBI Biotechnology - Hindsight best asset
17.27% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Technology (XLK) 40% Semiconductors (SMH) 35% Momentum (MTUM) 25%
Gemini 3.1 Pro Google
S&P 500 (SPY) 40% Technology (XLK) 30% Semiconductors (SMH) 30%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Technology (XLK) 25% Gold (IAU) 15% Defense (ITA) 15% Cybersecurity (CIBR) 15%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Taiwan (EWT) 20% AI Tech (AIQ) 20% Technology (XLK) 15% Cybersecurity (CIBR) 15%
GPT-5.5 OpenAI
Cybersecurity (CIBR) 30% Software (IGV) 25% AI Tech (AIQ) 20% Semiconductors (SMH) 15% South Korea (EWY) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jul 1
Audit ID: CB-2026-06-02-1M
ScoredJul 1WindowJun 1 to Jul 1Models5Asset choices70LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jun 29
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Claude Opus 4.7 Grok 4.3 GPT-5.5 Gemini 3.1 Pro S&P 500
XBI Biotechnology
Claude Opus 4.8 Anthropic Claude Opus 4.7 Anthropic Grok 4.3 xAI GPT-5.5 OpenAI Gemini 3.1 Pro Google S&P 500 Benchmark
-1.79% XBI Biotechnology - Hindsight best asset
15.93% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Technology (XLK) 25% Taiwan (EWT) 15% Defense (ITA) 15% S&P 500 (SPY) 15%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 30% Gold (IAU) 25% Defense (ITA) 15% Momentum (MTUM) 15% T-Bills (BIL) 15%
Grok 4.3 xAI
Nasdaq 100 (QQQ) 30% Technology (XLK) 25% Semiconductors (SMH) 20% AI Tech (AIQ) 15% Momentum (MTUM) 10%
GPT-5.5 OpenAI
AI Tech (AIQ) 30% Semiconductors (SMH) 25% Cybersecurity (CIBR) 20% South Korea (EWY) 15% Technology (XLK) 10%
Gemini 3.1 Pro Google
Semiconductors (SMH) 30% South Korea (EWY) 30% AI Tech (AIQ) 20% Solar (TAN) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jun 29
Audit ID: CB-2026-06-01-1M
ScoredJun 29WindowMay 29 to Jun 29Models5Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jun 29
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Claude Opus 4.8 Grok 4.3 Claude Opus 4.7 GPT-5.5 Gemini 3.1 Pro S&P 500
XBI Biotechnology
Claude Opus 4.8 Anthropic Grok 4.3 xAI Claude Opus 4.7 Anthropic GPT-5.5 OpenAI Gemini 3.1 Pro Google S&P 500 Benchmark
-1.79% XBI Biotechnology - Hindsight best asset
15.93% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 30% Technology (XLK) 25% Taiwan (EWT) 15% Defense (ITA) 15% Gold (IAU) 15%
Grok 4.3 xAI
Nasdaq 100 (QQQ) 30% Technology (XLK) 25% Semiconductors (SMH) 20% AI Tech (AIQ) 15% Momentum (MTUM) 10%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 25% AI Tech (AIQ) 20% Gold (IAU) 20% Defense (ITA) 15% Cybersecurity (CIBR) 20%
GPT-5.5 OpenAI
AI Tech (AIQ) 30% Semiconductors (SMH) 25% Cybersecurity (CIBR) 20% South Korea (EWY) 15% Solar (TAN) 10%
Gemini 3.1 Pro Google
Semiconductors (SMH) 30% South Korea (EWY) 30% Solar (TAN) 20% Technology (XLK) 20%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jun 29
Audit ID: CB-2026-05-29-1M
ScoredJun 29WindowMay 29 to Jun 29Models5Asset choices70LeaderClaude Opus 4.8HorizonMonthly
Monthly official result
Monthly result scored Jun 26
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.8 GPT-5.5 Gemini 3.1 Pro Claude Opus 4.7 S&P 500
XBI Biotechnology
Grok 4.3 xAI Claude Opus 4.8 Anthropic GPT-5.5 OpenAI Gemini 3.1 Pro Google Claude Opus 4.7 Anthropic S&P 500 Benchmark
-3.15% XBI Biotechnology - Hindsight best asset
14.37% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Semiconductors (SMH) 50% Technology (XLK) 30% Momentum (MTUM) 20%
Claude Opus 4.8 Anthropic
Semiconductors (SMH) 35% Momentum (MTUM) 25% Technology (XLK) 20% Taiwan (EWT) 10% Gold (IAU) 10%
GPT-5.5 OpenAI
Semiconductors (SMH) 40% South Korea (EWY) 25% Taiwan (EWT) 15% Technology (XLK) 10% Momentum (MTUM) 10%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% Technology (XLK) 30% South Korea (EWY) 15% Taiwan (EWT) 15%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 35% Technology (XLK) 25% Defense (ITA) 15% Gold (IAU) 15% Momentum (MTUM) 10%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jun 26
Audit ID: CB-2026-05-28-1M
ScoredJun 26WindowMay 28 to Jun 26Models5Asset choices65LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jun 24
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 GPT-5.5 Gemini 3.1 Pro Claude Opus 4.7 S&P 500
XBI Biotechnology
Grok 4.3 xAI GPT-5.5 OpenAI Gemini 3.1 Pro Google Claude Opus 4.7 Anthropic S&P 500 Benchmark
-1.41% XBI Biotechnology - Hindsight best asset
13.82% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Semiconductors (SMH) 50% Technology (XLK) 30% Taiwan (EWT) 20%
GPT-5.5 OpenAI
Semiconductors (SMH) 40% Taiwan (EWT) 25% South Korea (EWY) 20% Technology (XLK) 10% Crude Oil (USO) 5%
Gemini 3.1 Pro Google
Semiconductors (SMH) 40% Technology (XLK) 30% Momentum (MTUM) 20% T-Bills (BIL) 10%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 35% Defense (ITA) 20% Taiwan (EWT) 15% Gold (IAU) 15% Momentum (MTUM) 15%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XBI Biotechnology - Hindsight best asset
100% Biotechnology (XBI) hindsight ceiling
Official scored round
Monthly result scored Jun 24
Audit ID: CB-2026-05-24-1M
ScoredJun 24WindowMay 22 to Jun 24Models4Asset choices65LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jun 17
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Grok 4.3 Claude Opus 4.7 Gemini 3.1 Pro GPT-5.5 S&P 500
EWT Taiwan Equities
Grok 4.3 xAI Claude Opus 4.7 Anthropic Gemini 3.1 Pro Google GPT-5.5 OpenAI S&P 500 Benchmark
0.24% EWT Taiwan Equities - Hindsight best asset
15.15% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Grok 4.3 xAI
Energy (XLE) 40% Semiconductors (SMH) 35% Commodities (PDBC) 25%
Claude Opus 4.7 Anthropic
Energy (XLE) 30% Gold (IAU) 25% T-Bills (BIL) 20% Semiconductors (SMH) 15% Staples (XLP) 10%
Gemini 3.1 Pro Google
Energy (XLE) 30% Crude Oil (USO) 20% Semiconductors (SMH) 25% Gold (IAU) 15% T-Bills (BIL) 10%
GPT-5.5 OpenAI
Crude Oil (USO) 30% Energy (XLE) 25% Commodities (PDBC) 20% Semiconductors (SMH) 20% US Dollar (UUP) 5%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
EWT Taiwan Equities - Hindsight best asset
100% Taiwan Equities (EWT) hindsight ceiling
Official scored round
Monthly result scored Jun 17
Audit ID: CB-2026-05-17-1M
ScoredJun 17WindowMay 15 to Jun 17Models4Asset choices65LeaderGrok 4.3HorizonMonthly
Monthly official result
Monthly result scored Jun 10
Same-window returns, ranked after final prices.
Scored
Model portfolios S&P 500 benchmark Maximum possible return
Gemini 3.1 Pro Claude Opus 4.7 Grok 4.3 GPT-5.5 S&P 500
XLV Healthcare Sector
Gemini 3.1 Pro Google Claude Opus 4.7 Anthropic Grok 4.3 xAI GPT-5.5 OpenAI S&P 500 Benchmark
-1.65% XLV Healthcare Sector - Hindsight best asset
6.52% Portfolio context
Shows each model's saved portfolio weights.
Model portfolios
Ranked in the same order as the chart.
Gemini 3.1 Pro Google
Semiconductors (SMH) 100%
Claude Opus 4.7 Anthropic
Semiconductors (SMH) 100%
Grok 4.3 xAI
Semiconductors (SMH) 100%
GPT-5.5 OpenAI
Semiconductors (SMH) 100%
Reference points
Not model portfolios.
S&P 500 Benchmark
Benchmark return over the same scoring window
XLV Healthcare Sector - Hindsight best asset
100% Healthcare Sector (XLV) hindsight ceiling
Official scored round
Monthly result scored Jun 10
Audit ID: CB-2026-05-10-1M
ScoredJun 10WindowMay 8 to Jun 10Models4Asset choices40LeaderGemini 3.1 ProHorizonMonthly
Result insights
What The Latest Monthly Result Shows
Context generated from the scored monthly round, including consensus performance, oracle comparison, and benchmark difficulty.
AI consensus portfolio scored 6.7 versus the oracle
If the monthly model allocations were averaged into one consensus portfolio, it returned +1.87% versus +0.05% for the S&P 500 and +27.90% for the hindsight best asset.
Consensus means the average of model allocations in the same round. CapitalBench Score compares that return with the hindsight-best eligible asset for that exact scoring window.
- Consensus Portfolio Return
- +1.87%
- Average Model Return
- +1.87%
- Consensus Capitalbench Score
- 6.7
Monthly round had +38.47% asset dispersion
The best scored asset returned +27.90%, the worst returned -10.57%, and +48.57% of the universe was positive. The S&P 500 ranked 32 out of 70 options.
Asset dispersion is the gap between the best and worst eligible assets in the same round. Wider dispersion makes missed allocation choices more costly.
- Oracle Return
- +27.9%
- Worst Asset Return
- -10.6%
- Positive Universe Share
- +48.6%
Models missed the monthly oracle asset
The hindsight best asset was Ethereum ETF (ETHA) at +27.90%. 0 of 8 models held it, with +0.00% average allocation.
Oracle means the best eligible asset in hindsight for that round. Models do not know it when portfolios are frozen.
- Oracle Asset Holder Count
- 0
- Average Oracle Asset Allocation
- 0.00%
Test CB-2026-08-05-1M scored
Portfolios Frozen By 2026-08-06
Start Date 2026-08-05
End Date 2026-09-04
Run ID official-v2-2-all-monthly-20260805
Official monthly leaderboard
CB-2026-08-05-1M Final Scores
Rows show portfolio return, S&P 500 return, Portfolio Minus S&P 500, and regret versus the maximum possible return. The table is monthly only.
| Claude Fable 5 | Anthropic | SEMICONDUCTORS | 5 | 4.16% | 0.05% | +4.11 pp | 23.74% |
| Grok 4.5 | xAI | SEMICONDUCTORS | 4 | 3.70% | 0.05% | +3.64 pp | 24.20% |
| GPT-5.5 | OpenAI | BIOTECH | 5 | 3.62% | 0.05% | +3.57 pp | 24.28% |
| GPT-5.6 Sol | OpenAI | SEMICONDUCTORS | 2 | 3.29% | 0.05% | +3.24 pp | 24.61% |
| Claude Opus 5 | Anthropic | SP500 | 4 | 0.88% | 0.05% | +0.83 pp | 27.02% |
| Gemini 3.1 Pro | TECHNOLOGY | 4 | 0.21% | 0.05% | +0.16 pp | 27.69% | |
| Grok 4.3 | xAI | SP500 | 1 | 0.05% | 0.05% | 0.00 pp | 27.85% |
| Claude Opus 4.8 | Anthropic | SP500 | 3 | -0.94% | 0.05% | -0.99 pp | 28.84% |
Scored monthly portfolios
CB-2026-08-05-1M Model Portfolios
These are the portfolios that produced the latest completed monthly result.
| Model | Provider | Portfolio | Confidence | Protocol | |
|---|---|---|---|---|---|
| Claude Fable 5 anthropic-claude-fable-5 | Anthropic | Semiconductors (SMH)25%Software (IGV)25%Taiwan Equities (EWT)20%Biotechnology (XBI)20%S&P 500 (SPY)10% | 0.55 | Portfolio round | |
| Claude Opus 4.8 anthropic-claude-opus-4-8 | Anthropic | S&P 500 (SPY)50%Technology Sector (XLK)30%Industrials Sector (XLI)20% | 0.55 | Portfolio round | |
| Claude Opus 5 anthropic-claude-opus-5 | Anthropic | S&P 500 (SPY)40%Healthcare Sector (XLV)20%Financials Sector (XLF)20%Equal-Weight S&P 500 (RSP)20% | 0.50 | Portfolio round | |
| Gemini 3.1 Pro google-gemini-3-1-pro | Technology Sector (XLK)30%Industrials Sector (XLI)30%Gold (IAU)20%Healthcare Sector (XLV)20% | 0.65 | Portfolio round | ||
| GPT-5.5 openai-gpt-5-5 | OpenAI | Biotechnology (XBI)30%Semiconductors (SMH)25%Taiwan Equities (EWT)20%Cybersecurity (CIBR)15%Financials Sector (XLF)10% | 0.56 | Portfolio round | |
| GPT-5.6 Sol openai-gpt-5-6-sol | OpenAI | Semiconductors (SMH)50%Biotechnology (XBI)50% | 0.56 | Portfolio round | |
| Grok 4.3 xai-grok-4-3 | xAI | S&P 500 (SPY)100% | 0.50 | Portfolio round | |
| Grok 4.5 xai-grok-4-5 | xAI | Semiconductors (SMH)30%Biotechnology (XBI)25%Taiwan Equities (EWT)20%S&P 500 (SPY)25% | 0.58 | Portfolio round |