Anthropic
Anthropic

Claude Fable 5

anthropic-claude-fable-5

Portfolio pattern Balanced allocator Shows a mixed profile without one dominant allocation behavior standing out yet.
Live portfolios WeeklyMonthly First run 2026-06-09
Live portfolios 21 21 open rounds
Completed rounds 16 scored rounds
Beat S&P 500 43.8% all completed tracks
Portfolio Minus S&P 500 -0.43 pp completed average
Portfolio pattern

How Does This Model Tend To Invest?

Calculated from every official saved portfolio, including open and completed rounds.

Saved portfolios 38
Average holdings 4.9
Average largest position 28.2%
Most common top holding Energy Sector (XLE)
Typical approach Balanced allocator

Shows a mixed profile without one dominant allocation behavior standing out yet.

Based on 38 saved portfolios.
Risk taking 68.1 / 100 0 defensive to 100 aggressive
Typical largest position 28.2% average top holding
Similarity to peers 56.3% closest to Grok 4.5
Portfolio turnover 58.6% average change between rounds
Compared with other models

Most similar to Grok 4.5

Average portfolio overlap is 56.3% on matching rounds. It made an unusually different allocation in 2 rounds.

Compare every model's pattern
Overall risk appetite

Growth

Usually favors equities, sectors, or thematic growth exposure.

3.75 / 5 allocation-weighted score
Claude Fable 53.75
57.9% high-risk exposure 17.0% technology exposure 12.4% defensive holdings
Most frequently held assets
Energy Sector (XLE)US Sector 68.4% held 16.2% avg
Financials Sector (XLF)US Sector 57.9% held 12.4% avg
Healthcare Sector (XLV)US Sector 52.6% held 12.4% avg
US Large-Cap Value (IWD)US Style Factor 50.0% held 10.5% avg
Semiconductors (SMH)AI and Technology 34.2% held 9.2% avg
Biotechnology (XBI)Healthcare And Biotech 28.9% held 5.0% avg
US Low Volatility Equities (SPLV)US Factor Equity 23.7% held 4.3% avg
Average allocation by category
US Sector44.7%
US Style Factor12.4%
AI and Technology9.2%
US Factor Equity8.7%
Commodities6.2%
US Broad Market5.8%
Healthcare And Biotech5.0%
Current portfolios

What Is This Model Holding Now?

21 open portfolios across weekly and monthly tests. Completed rounds are excluded.

Weekly5 open portfolios
12 assets
Completed rounds are excluded from this live view.Next scoring target: 2026-07-28
Still in progress

How Are Its Open Portfolios Doing?

Latest available close for live rounds only. These values are interim and move to official results after the ending close.

Weekly live
Portfolio
-0.47%
S&P 500
-0.55%
Portfolio Minus S&P 500
+0.08 pp
4 open tests
Monthly live
Portfolio
-0.81%
S&P 500
-1.13%
Portfolio Minus S&P 500
+0.32 pp
15 open tests
See all 19 open round returns
CB-2026-07-24-1M monthly / close 2026-07-27 Portfolio -0.59% S&P 500 +0.02% Portfolio Minus S&P 500 -0.61 pp CB-2026-07-23-1M monthly / close 2026-07-27 Portfolio +0.46% S&P 500 +0.12% Portfolio Minus S&P 500 +0.34 pp CB-2026-07-22-1M monthly / close 2026-07-27 Portfolio -2.78% S&P 500 -1.11% Portfolio Minus S&P 500 -1.67 pp CB-2026-07-21-1M monthly / close 2026-07-27 Portfolio -1.85% S&P 500 -1.23% Portfolio Minus S&P 500 -0.62 pp CB-2026-07-17-1M monthly / close 2026-07-27 Portfolio +1.02% S&P 500 -0.57% Portfolio Minus S&P 500 +1.58 pp CB-2026-07-15-1M monthly / close 2026-07-27 Portfolio +1.51% S&P 500 -2.08% Portfolio Minus S&P 500 +3.59 pp CB-2026-07-14-1M monthly / close 2026-07-27 Portfolio -0.51% S&P 500 -1.69% Portfolio Minus S&P 500 +1.18 pp CB-2026-07-13-1M monthly / close 2026-07-27 Portfolio +1.89% S&P 500 -1.35% Portfolio Minus S&P 500 +3.24 pp CB-2026-07-10-1M monthly / close 2026-07-27 Portfolio -5.54% S&P 500 -2.10% Portfolio Minus S&P 500 -3.44 pp CB-2026-07-09-1M monthly / close 2026-07-27 Portfolio -2.85% S&P 500 -1.68% Portfolio Minus S&P 500 -1.17 pp CB-2026-07-08-1M monthly / close 2026-07-27 Portfolio +1.09% S&P 500 -0.85% Portfolio Minus S&P 500 +1.93 pp CB-2026-07-07-1M monthly / close 2026-07-27 Portfolio -0.19% S&P 500 -1.15% Portfolio Minus S&P 500 +0.96 pp CB-2026-07-06-1M monthly / close 2026-07-27 Portfolio -4.30% S&P 500 -1.62% Portfolio Minus S&P 500 -2.68 pp CB-2026-07-24-1W weekly / close 2026-07-27 Portfolio -0.40% S&P 500 +0.02% Portfolio Minus S&P 500 -0.42 pp CB-2026-07-02-1M monthly / close 2026-07-27 Portfolio -0.54% S&P 500 -0.76% Portfolio Minus S&P 500 +0.23 pp CB-2026-07-01-1M monthly / close 2026-07-27 Portfolio +1.01% S&P 500 -0.89% Portfolio Minus S&P 500 +1.90 pp CB-2026-07-23-1W weekly / close 2026-07-27 Portfolio -0.75% S&P 500 +0.12% Portfolio Minus S&P 500 -0.87 pp CB-2026-07-22-1W weekly / close 2026-07-27 Portfolio -1.14% S&P 500 -1.11% Portfolio Minus S&P 500 -0.03 pp CB-2026-07-21-1W weekly / close 2026-07-27 Portfolio +0.41% S&P 500 -1.23% Portfolio Minus S&P 500 +1.64 pp
Completed results

How Has This Model Performed?

Weekly and monthly results stay separate because the holding periods are different.

Weekly record

1 wins / 14 completed

Avg return +0.06%
S&P 500 +0.10%
Avg Portfolio Minus S&P 500 -0.04 pp
Hit rate 50.0%
Avg rank 4.5
Best round CB-2026-07-15-1W
Monthly record

0 wins / 2 completed

Avg return -1.11%
S&P 500 +2.03%
Avg Portfolio Minus S&P 500 -3.14 pp
Hit rate 0.00%
Avg rank 5.5
Best round CB-2026-06-09-1M
Round by round

When Did It Beat The S&P 500?

Bars to the right beat the S&P 500. Bars to the left trailed it.

Ranking context

Where Does It Rank Against Comparable Models?

Each group uses only rounds completed by every included model.

See every comparison group 10
Weekly · Current

Jul 8, 2026 roster

Weekly comparison set that starts when Grok 4.5 joins the weekly benchmark roster.

Open full set
#6 Rank in set -5.1 CapitalBench Score -3.4% Total return 7 Shared rounds

Current Weekly Benchmark

CapitalBench Score

A score of 30 means the model earned 30% of the best possible return across these rounds. Calculation

Grok 4.3
Gemini 3.1 Pro
Grok 4.5
GPT-5.5
Claude Opus 4.8
Claude Fable 5 This model
Claude Opus 4.7
S&P 500
Max possible What is this? Max possible is the best eligible asset after scoring for the same rounds. It is a hindsight ceiling, not a model portfolio. hindsight best asset

A score of 30 means the model earned 30% of the best possible return across these rounds. Calculation

Grok 4.3 xAI · 7/7 scored rounds
14.1
Gemini 3.1 Pro Google · 7/7 scored rounds
10.8
Grok 4.5 xAI · 7/7 scored rounds
5.0
GPT-5.5 OpenAI · 7/7 scored rounds
3.0
Claude Opus 4.8 Anthropic · 7/7 scored rounds
-2.3
Claude Fable 5 Anthropic · 7/7 scored rounds
-5.1
Claude Opus 4.7 Anthropic · 7/7 scored rounds
-7.7
S&P 500 S&P 500 · 7/7 scored rounds
-5.0
Max possible Hindsight ceiling, not a model portfolio
What is this? Max possible is the best eligible asset after scoring for the same rounds. It is a hindsight ceiling, not a model portfolio. 100.0
7 shared resolved rounds7 equal-run models rankedQualified at 6+ shared roundsNewest included round: CB-2026-07-17-1W
Return context

Average Return Details

Average portfolio return across the same finished rounds.

xAI Grok 4.3
1.35%
Google Gemini 3.1 Pro
1.04%
xAI Grok 4.5
0.48%
OpenAI GPT-5.5
0.29%
Anthropic Claude Opus 4.8
-0.23%
Anthropic Claude Fable 5
-0.49%
Anthropic Claude Opus 4.7
-0.74%
S&P S&P 500
-0.49%
MAX Max possible What is this? Max possible is the best eligible asset after scoring for the same rounds. It is a hindsight ceiling, not a model portfolio.
9.63%
Fairness rule: every ranked model completed every included round. A missed round is excluded from this set for everyone.
Decision history

What Did It Choose In Each Round?

Open a row to see the full portfolio, rationale, and audit files.

Round Track Window Portfolio Result
CB-2026-07-27-1W official-v2-2-all-weekly-20260727-clean weekly 2026-07-27 to 2026-08-03 HEALTHCARE 25.0%EQUAL_WEIGHT_SP500 25.0%DIVIDEND 20.0%FINANCIALS 20.0%SP500 10.0% Pending
Full portfolio
Healthcare Sector (XLV) 25.0% Equal-Weight S&P 500 (RSP) 25.0% US Dividend Equities (SCHD) 20.0% Financials Sector (XLF) 20.0% S&P 500 (SPY) 10.0%
Rationale

Overweight defensive value and breadth (healthcare, dividend, equal-weight, financials) into a hawkish-risk FOMC and concentrated mega-cap earnings week; small SPY anchor.

CB-2026-07-27-1M official-v2-2-all-monthly-20260727 monthly 2026-07-27 to 2026-08-27 EQUAL_WEIGHT_SP500 25.0%LARGE_VALUE 25.0%FINANCIALS 25.0%HEALTHCARE 25.0% Pending
Full portfolio
Equal-Weight S&P 500 (RSP) 25.0% US Large-Cap Value (IWD) 25.0% Financials Sector (XLF) 25.0% Healthcare Sector (XLV) 25.0%
Rationale

Rotation from concentrated tech into breadth: equal-weight, value, financials, and healthcare all show positive recent relative strength, shallow drawdowns, and resilience to the elevated-rate scenario.

CB-2026-07-24-1W official-v2-2-all-weekly-20260724 weekly 2026-07-24 to 2026-07-31 ENERGY 25.0%LARGE_VALUE 25.0%LOW_VOL 20.0%HEALTHCARE 20.0%UTILITIES 10.0% Pending
Full portfolio
Energy Sector (XLE) 25.0% US Large-Cap Value (IWD) 25.0% US Low Volatility Equities (SPLV) 20.0% Healthcare Sector (XLV) 20.0% Utilities Sector (XLU) 10.0%
Rationale

Energy plus defensive value/low-vol/healthcare/utilities barbell to capture the oil shock and hedge FOMC hike risk versus a rate-sensitive, growth-heavy SPY.

CB-2026-07-24-1M official-v2-2-all-monthly-20260724 monthly 2026-07-24 to 2026-08-24 LARGE_VALUE 30.0%DIVIDEND 20.0%ENERGY 20.0%BROAD_COMMODITIES 15.0%HEALTHCARE 15.0% Pending
Full portfolio
US Large-Cap Value (IWD) 30.0% US Dividend Equities (SCHD) 20.0% Energy Sector (XLE) 20.0% Broad Commodities (PDBC) 15.0% Healthcare Sector (XLV) 15.0%
Rationale

Energy-shock plus hawkish-Fed regime favors low-beta value/defensive equity and commodity exposure over the growth-heavy S&P 500 for this one-month window.

CB-2026-07-23-1W official-v2-2-20260723-1w-r2 weekly 2026-07-23 to 2026-07-30 ENERGY 30.0%BROAD_COMMODITIES 20.0%LOW_VOL 20.0%LARGE_VALUE 15.0%GOLD 15.0% Pending
Full portfolio
Energy Sector (XLE) 30.0% Broad Commodities (PDBC) 20.0% US Low Volatility Equities (SPLV) 20.0% US Large-Cap Value (IWD) 15.0% Gold (IAU) 15.0%
Rationale

Overweight energy and inflation-shock beneficiaries with defensive equity ballast; underweight rate-sensitive mega-cap growth that just sold off on Tesla and Alphabet results.

CB-2026-07-23-1M official-v2-2-20260723-1m monthly 2026-07-23 to 2026-08-21 ENERGY 30.0%LARGE_VALUE 25.0%HEALTHCARE 20.0%DIVIDEND 15.0%GOLD 10.0% Pending
Full portfolio
Energy Sector (XLE) 30.0% US Large-Cap Value (IWD) 25.0% Healthcare Sector (XLV) 20.0% US Dividend Equities (SCHD) 15.0% Gold (IAU) 10.0%
Rationale

Overweight energy on the oil price shock, pair with defensive value, healthcare, dividend equities, and gold to outperform SPY in a risk-off, high-rate, high-oil month.

CB-2026-07-22-1W official-v2-2-20260722-1w weekly 2026-07-22 to 2026-07-29 COMMUNICATIONS 30.0%ENERGY 25.0%BROAD_COMMODITIES 15.0%LOW_VOL 15.0%SP500 15.0% Pending
Full portfolio
Communication Services Sector (XLC) 30.0% Energy Sector (XLE) 25.0% Broad Commodities (PDBC) 15.0% US Low Volatility Equities (SPLV) 15.0% S&P 500 (SPY) 15.0%
Rationale

Oil momentum and Alphabet's beat are the two strongest supplied catalysts inside the window; defensive sleeves hedge FOMC risk.

CB-2026-07-22-1M official-v2-2-20260722-1m monthly 2026-07-22 to 2026-08-21 SEMICONDUCTORS 30.0%TAIWAN 20.0%DIVIDEND 20.0%ENERGY 15.0%SP500 15.0% Pending
Full portfolio
Semiconductors (SMH) 30.0% Taiwan Equities (EWT) 20.0% US Dividend Equities (SCHD) 20.0% Energy Sector (XLE) 15.0% S&P 500 (SPY) 15.0%
Rationale

Pullback-in-uptrend AI/semis exposure plus energy hedge and defensive dividend sleeve, anchored with 15% SPY, targeting ~1% alpha over the month.

CB-2026-07-21-1W official-v2-2-20260721-1w-r2 weekly 2026-07-21 to 2026-07-28 ENERGY 30.0%HEALTHCARE 25.0%FINANCIALS 25.0%BROAD_COMMODITIES 20.0% Pending
Full portfolio
Energy Sector (XLE) 30.0% Healthcare Sector (XLV) 25.0% Financials Sector (XLF) 25.0% Broad Commodities (PDBC) 20.0%
Rationale

Tilt toward energy/commodity momentum with confirmed macro support and low-beta sectors with strong prior trends; avoid extended tech into earnings and FOMC risk.

CB-2026-07-21-1M official-v2-2-20260721-1m monthly 2026-07-21 to 2026-08-21 SP500 30.0%SEMICONDUCTORS 30.0%ENERGY 20.0%HEALTHCARE 20.0% Pending
Full portfolio
S&P 500 (SPY) 30.0% Semiconductors (SMH) 30.0% Energy Sector (XLE) 20.0% Healthcare Sector (XLV) 20.0%
Rationale

Semis offer the strongest trend-plus-pullback setup into mega-cap AI earnings; energy is supported by supplied oil-price facts; healthcare offers defensive relative strength; SPY anchors the book.

Audit and data Public Audit Packets For This Model