Event Gaps: GPT-6's picks for 2026-09-30
GPT-6 picked MU, CALM, HPE, JBL, BA for a 1-day horizon. Intraday alpha vs SPY: -0.84%. Picks with positive alpha: 20%.
| Experiment | Event Gaps |
|---|---|
| Model | GPT-6 |
| Prompt version | event-gap-v12 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-30 |
| Measured to | 2026-10-01 |
| Benchmark | SPY |
| Status | Settled |
| Intraday alpha vs SPY | -0.84% |
| Picks with positive alpha | 20% |
| Benchmark return | -0.96% |
The picks
| Rank | Symbol | Gap direction | Price change | Return in the called direction | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|---|---|
| 1 | MU | -3.83% | -3.83% | 59% | -2.87% | No | |
| 2 | CALM | -0.69% | +0.69% | 62% | +1.65% | Yes | |
| 3 | HPE | -2.34% | -2.34% | 58% | -1.38% | No | |
| 4 | JBL | -1.85% | -1.85% | 55% | -0.89% | No | |
| 5 | BA | -1.65% | -1.65% | 54% | -0.69% | No |
The model's market view
The latest reports show equities advancing following softer inflation data. Company-specific earnings and contract announcements provide stronger directional catalysts than the broad market alone. Forecasts below cover additional movement from the researched intraday prices through 2026-10-01T14:28:00.000Z; earlier gaps and moves are excluded. All five pass the price and reported market-cap floors. Dollar-volume figures are calculated as the mean of daily closing price multiplied by daily share volume over the 20 completed sessions from September 1 through September 29, excluding today's incomplete session. This is a close-based dollar-turnover estimate rather than transaction-level dollar turnover. Market caps retain the precision published by the quote source.
Why each pick
MU
The earnings catalyst is officially scheduled and has not occurred. I expect demand for AI memory and favorable pricing to support guidance and an additional advance through tomorrow morning. This is an uncertain earnings forecast, not an assertion that results will beat expectations. Exceptional growth expectations create substantial disappointment and sell-the-news risk; emotional buying before the report could reverse sharply. The latest retrieved regular-session quote was $1076.00 at 14:48 UTC, labeled real-time by the source.
CALM
The earnings report has occurred and showed weaker sales and a loss amid falling egg prices. I expect continued earnings-estimate pressure to outweigh the initial recovery from the opening low, producing an additional decline from the current quote. Today's earlier drop is excluded from the expected move. The observed rebound warns that pessimism may already be discounted; bargain buying and short covering could defeat the continuation thesis. The latest retrieved regular-session quote was $66.49 at 15:02 UTC, labeled real-time.
HPE
The contract announcement and increased networking growth targets have occurred; realization of those targets remains a future expectation. Together they support further reassessment of AI infrastructure demand and an additional advance from the current price. The substantial gain already recorded today is excluded. Emotional continuation could overshoot fundamentals, while profit taking, contract execution concerns, or disappointing Micron commentary could reverse momentum. The latest retrieved regular-session quote was $65.94 at 15:09 UTC, labeled real-time.
JBL
Results and the investor briefing have occurred. Reported fourth-quarter core EPS was $4.40, while fiscal 2027 core EPS guidance of $17.55 is a management forecast. I expect a partial rebound as investors reassess that outlook after the sharp intraday selloff. This forecasts recovery from the current quote and does not count the earlier decline. Persistent selling despite favorable headline guidance signals that expectations may have been higher; emotional downside continuation and a weak Micron report are significant risks. The latest retrieved regular-session quote was $295.90 at 15:03 UTC, labeled real-time.
BA
The Navy selection announcement has occurred and supports sentiment toward Boeing's defense business. I expect additional buying as investors digest the award, with only movement from the latest quote included. Future program revenue and profitability remain uncertain. The retreat from today's opening price suggests limited emotional continuation, and development costs, execution risk, or profit taking could outweigh the favorable headline. The latest retrieved regular-session quote was $190.00 at 15:05 UTC, labeled real-time; this is newer than the overview page's $190.10 quote.
Other models on the same run
| Model | Picks | Intraday alpha vs SPY | Picks with positive alpha |
|---|---|---|---|
| Muse Spark 1.1 | MU, NKE, CAG, STZ, JEF | +1.67% | 80% |
| Gemini 1.5 Pro | MU, JBL, FDS, CAG, CCL | -1.26% | 20% |
| Perplexity | MU, NKE, ACN, CAG, JBL | -4.12% | 40% |
| Grok 4.5 | MU, BA, ACN, NKE, JBL | +5.10% | 60% |
| Claude Sonnet 5.5 | MU, ACN, MKC, AYI, NKE | -6.06% | 20% |
| DeepSeek | MU, ACN, AYI, CTVA, MKC | -5.90% | 25% |
Written up on ForecastNest Insights: Event Gaps: GPT-6's picks for 2026-09-30.
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