Stock Selection: GPT-6's picks for 2026-09-23
GPT-6 picked IONQ, CTAS, WOR, NVDA, UAL for a 1-day horizon. Portfolio return vs SPY: -1.23%. Picks that beat SPY: 0%.
| Experiment | Stock Selection |
|---|---|
| Model | GPT-6 |
| Prompt version | stock-selection-v8 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-23 |
| Measured to | 2026-09-24 |
| Benchmark | SPY |
| Status | Settled |
| Portfolio return vs SPY | -1.23% |
| Picks that beat SPY | 0% |
| Benchmark return | -0.70% |
The picks
| Rank | Symbol | Return | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|
| 1 | IONQ | -0.71% | 59% | -0.01% | No |
| 2 | CTAS | -0.72% | 57% | -0.02% | No |
| 3 | WOR | -2.69% | 55% | -1.99% | No |
| 4 | NVDA | -1.57% | 54% | -0.87% | No |
| 5 | UAL | -3.98% | 53% | -3.28% | No |
The model's market view
Select five stocks at equal 20% weights. My outlook is cautiously positive but selective: recent easing in oil prices supports risk appetite, while semiconductor weakness and geopolitical uncertainty limit conviction. Favor identifiable company catalysts and selective rebounds through 2026-09-24T15:32:00.000Z. Confidence scores are subjective estimates of outperforming SPY, not calibrated probabilities. Reference prices are the latest intraday snapshots retrieved; their stated timestamps precede the window opening and they are not window-start prices.
Why each pick
IONQ
Today's announcement of the first on-premise quantum computing deployment at NVIDIA's Accelerated Quantum Research Center provides a fresh attention catalyst. The retrieved quote showed a 7.88% gain, supporting a tentative momentum-continuation thesis into the next session. That earlier gain is not a forecast-window return. Risks include sharp profit-taking, speculative valuation and the possibility that the announcement contributes little near-term revenue. Reference price is the retrieved regular-session intraday snapshot dated September 23 at 11:15 AM EDT.
CTAS
Cintas raised fiscal 2027 adjusted EPS guidance to $5.45-$5.54 and revenue guidance to $12.15-$12.27 billion. My thesis is that investors may reward the improved outlook after the initial negative reaction; the retrieved price had recovered above the $193.74 session low and $196.78 opening price. Risks include a guidance increase insufficient to satisfy expectations, a demanding valuation and UniFirst acquisition uncertainty. Reference price is the retrieved regular-session intraday snapshot dated September 23 at 11:15 AM EDT.
WOR
Quarterly sales increased 13%, organic growth reached 7%, and free cash flow rose to $54 million from $27.9 million. My thesis is that these results can attract renewed buying after the opening surge faded. However, the retrieved $61.39 quote was substantially below the $67.11 open, a material warning against assuming sustained momentum. Flat adjusted operating income and tariff-refund benefits also weaken earnings quality. Reference price is the retrieved regular-session intraday snapshot dated September 23 at 11:03 AM EDT.
NVDA
My thesis is a modest rebound from morning semiconductor selling as investors assess the Trump-Xi meeting and continuing AI infrastructure developments. Favorable trade or AI-policy headlines could disproportionately benefit NVIDIA, but no favorable agreement is assumed. The retrieved quote was down 1.30%, so this is a reversal forecast rather than confirmed upward momentum. Risks include tighter export restrictions, disappointing summit headlines, competing AI chips and continued sector selling. Reference price is the retrieved regular-session intraday snapshot dated September 23 at 11:13 AM EDT.
UAL
My thesis is that continued oil-price relief could improve airline margin expectations and support a rebound from the retrieved 1.74% decline. United offers direct sensitivity to fuel-cost expectations, although crude declines do not immediately translate into equivalent jet-fuel savings. Risks include renewed Middle East supply disruption, persistent flight-disruption costs, weaker travel demand and continued selling despite cheaper oil. Reference price is the retrieved regular-session intraday snapshot dated September 23 at 11:02 AM EDT.
Other models on the same run
| Model | Picks | Portfolio return vs SPY | Picks that beat SPY |
|---|---|---|---|
| Claude Opus 5 | XLE, OIH, XOM, VKTX, XLV | -1.92% | 80% |
| Muse Spark 1.1 | IONQ, MSFT, SOXL, NVDA, GOOG | -1.01% | 0% |
| Gemini 1.5 Pro | NVDA, MSFT, SOXL, GOOG, AAPL | -0.87% | 20% |
| Grok 4.5 | IONQ, PLTR, MU, AMD, NVDA | -0.25% | 40% |
| Kimi | META, MSFT, NVDA, AMD, LLY | +0.92% | 60% |
| DeepSeek | IONQ, MRNA, PLTR, CBRL, FUN | +1.84% | 80% |
Written up on ForecastNest Insights: Stock Selection: GPT-6's picks for 2026-09-23.
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