Stock Selection: Claude Sonnet 5.5's picks for 2026-10-12
Claude Sonnet 5.5 picked XOM, JPM, NVDA, CVX, XLU for a 1-day horizon. Portfolio return vs SPY: +0.28%. Picks that beat SPY: 60%.
| Experiment | Stock Selection |
|---|---|
| Model | Claude Sonnet 5.5 |
| Prompt version | stock-selection-v8 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-10-12 |
| Measured to | 2026-10-13 |
| Benchmark | SPY |
| Status | Settled |
| Portfolio return vs SPY | +0.28% |
| Picks that beat SPY | 60% |
| Benchmark return | -0.06% |
The picks
| Rank | Symbol | Return | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|
| 1 | XOM | +0.67% | 55% | +0.73% | Yes |
| 2 | JPM | -0.35% | 52% | -0.29% | No |
| 3 | NVDA | +0.27% | 48% | +0.33% | Yes |
| 4 | CVX | +0.68% | 47% | +0.74% | Yes |
| 5 | XLU | -0.17% | 42% | -0.11% | No |
The model's market view
The S&P 500 closed Friday at about 7,811, just below its record high. Oil is elevated, with Brent near $104 and WTI near $90, because of the Iran war and Houthi strikes on Saudi Arabia. The 10-year Treasury yield is near 5.25%, close to a 24-year high. Tech sold off on Oct 7-8 over AI revenue fears before rebounding Friday, and the Nasdaq is slightly weaker this morning. The Nasdaq is lagging, and the Treasury market is closed for Columbus Day. The window runs to about 10:11 ET on Oct 13, so it includes the open after JPMorgan's pre-market earnings on Oct 13. I lean toward energy and large-cap financials with a defensive tilt, plus one beaten-down AI leader for a rebound. Single-day relative returns are close to noise, so confidence is modest throughout.
Why each pick
XOM
Thesis: crude stays elevated because of Iran-war supply disruption and Houthi strikes on Saudi infrastructure. XOM is a low-beta energy leader that held up on Oct 8 while tech sold off, so it can outperform SPY if the market dips or oil firms. Risks: oil eased this morning on the Russian diesel sanctions waiver, and a peace headline could hit energy. The pick also lags if tech leads a rebound. Price check: $168.94 is a pre-open snapshot dated 2026-10-12 from the quoted page, not a regular-session close.
JPM
Thesis: JPMorgan reports Q3 before the open on Oct 13, inside the window. Consensus EPS is about $5.94, and it has beaten consensus in each of the last four quarters, including a +9.8% surprise in July. High yields and a steep curve support net interest income, and credit spreads are tight. Risks: options imply a move of about 5%. The stock fell on three of its last four earnings days despite beating, so a high bar and a sell-the-news reaction are real possibilities. Price check: $332.99 is the regular-session close on 2026-10-09, the latest close found. No intraday quote was found.
NVDA
Thesis: tech fell 2.1% on Oct 8 on AI revenue fears and rebounded Friday. NVDA is the highest-liquidity AI leader, so it can bounce if bank earnings and CPI-week positioning lift risk appetite. The Nasdaq 100 is up about 6% over the past month. Risks: the Nasdaq is slightly red this morning, yields near 24-year highs pressure long-duration growth, and renewed AI-capex worries could extend the selloff. Price check: $228.38 is a pre-open snapshot dated 2026-10-12 from the quoted page, not a regular-session close.
CVX
Thesis: same oil-supply backdrop as XOM, with energy the best sector on Oct 8 (+2.3%) and Chevron gaining while Nvidia slid. It also adds a defensive hedge against another tech wobble. Risks: it is highly correlated with XOM, so the book is concentrated in energy. Oil is easing on the Russian diesel deal, and a ceasefire or sanctions headline could pull crude down sharply. Price check: $211.98 is a pre-open snapshot dated 2026-10-12 from the quoted page, not a regular-session close.
XLU
Thesis: utilities led on Oct 7, up about 3% in one session. The sector offers a defensive, low-beta source of relative strength if the market consolidates near record highs ahead of earnings and CPI. Risks: with the 10-year yield near 5.25%, rate-sensitive utilities can sell off quickly if yields push higher, and the sector would lag in a strong tech-led rally. Price check: I could not find a reliable current or recent quote for XLU, so reference_price is omitted.
Other models on the same run
| Model | Picks | Portfolio return vs SPY | Picks that beat SPY |
|---|---|---|---|
| GPT-6 | FSLR, CRM, CCC, CVX, IREN | -0.42% | 60% |
| Muse Spark 1.1 | CRM, FSLR, AMZN, MSFT, TSLA | +0.72% | 60% |
| Gemini 3 Pro | NVDA, MSFT, QQQ, AAPL, AMZN | +0.71% | 80% |
| Perplexity | CCI, MRNA, HUM, NVAX, FSLY | -0.84% | 40% |
| Grok 4.5 | XLE, XOM, CRM, DHT, JPM | +1.16% | 80% |
| DeepSeek | IREN, CCC, CRM, BIIB, FSLR | -1.00% | 40% |
Written up on ForecastNest Insights: Stock Selection: Claude Sonnet 5.5's picks for 2026-10-12.
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