Extreme Movers: GPT-6's picks for 2026-09-30
GPT-6 picked IOVA, FICO, CCL, BE, KMX for a 1-day horizon. Average directional return: -0.26%. Directions called correctly: 60%.
| Experiment | Extreme Movers |
|---|---|
| Model | GPT-6 |
| Prompt version | extreme-movers-v11 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-30 |
| Measured to | 2026-10-01 |
| Benchmark | SPY |
| Status | Settled |
| Average directional return | -0.26% |
| Directions called correctly | 60% |
| Benchmark return | -0.99% |
The picks
| Rank | Symbol | Direction | Price change | Return in the called direction | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|---|---|
| 1 | IOVA | up | +1.29% | +1.29% | 62% | +2.28% | Yes |
| 2 | FICO | down | +6.49% | -6.49% | 61% | -5.49% | No |
| 3 | CCL | up | -2.30% | -2.30% | 60% | -1.31% | No |
| 4 | BE | down | -2.69% | +2.69% | 57% | +3.68% | Yes |
| 5 | KMX | down | -3.50% | +3.50% | 54% | +4.49% | Yes |
The model's market view
The source-session date was not explicitly supplied; September 29 is inferred as the preceding completed session. Selections come from reported gainers and losers, with regular-session changes verified against historical prices. Hypotheses are classified solely against those September 29 changes. The explicit timestamp window takes precedence over the conflicting close-to-close wording: forecasts concern additional movement through October 1 at 14:32 UTC. Dollar-volume figures are calculated as the mean of daily close multiplied by share volume across the 20 completed sessions ending September 29; they are close-based turnover estimates. Exact September 29 market caps were verified for CCL and KMX. For the other three, retrieved September 30 market caps are reported with their actual dates; their exact source-close capitalizations remain unverified. Realized directional returns and the fraction correct cannot be calculated before the window ends.
Why each pick
IOVA
Ranked first because September 29's 31.48% gain followed a substantive company guidance increase rather than an unsupported rumor. The SEC-filed release raised expected 2026 revenue to $410–420 million from $350–370 million, citing therapy demand. Guidance remains an expectation, not realized revenue. I expect further upward repricing, classified as continuation of the positive source-session change. Profit taking after the large rally, manufacturing constraints and commercialization costs are risks. The latest retrieved intraday quote was $14.91 at 15:17 UTC, labeled real-time. The source-session close was $14.45. The reported market cap is dated September 30; the exact September 29 cap could not be verified.
FICO
Ranked second because the September 29 decline of 26.52% reflects a substantive competitive and regulatory threat. Reporting describes mortgage pricing changes accommodating VantageScore and Rocket Mortgage's preference for that competing model. Further pressure on expected pricing power could extend the decline; down is continuation relative to the negative source-session change. Actual revenue damage remains uncertain, and panic selling could produce a sharp short-covering rebound. The latest retrieved intraday quote was $608.15 at 15:16 UTC, labeled real-time. The source-session close was $617.87. September 30 market capitalization was verified, but the exact September 29 cap was unavailable.
CCL
Ranked third because September 29's 13.41% gain was supported by substantive reported earnings, record bookings and an improved outlook. The company release supports the demand thesis; bookings are observed, while future earnings remain uncertain. I expect further buying as investors digest the report, making up a continuation of the positive source-session change. Higher fuel costs, financing costs and profit taking could interrupt that continuation. The newest retrieved intraday quote was $25.31 at 15:05 UTC, labeled real-time and approximately 15 minutes old during research. September 29's $25.11 close and $33.76 billion reported capitalization passed the source-session floors.
BE
Ranked fourth because September 29's 10.80% rebound followed an 8.95% decline the preceding session, suggesting unstable sentiment. Reporting links the rebound partly to a Fremont manufacturing expansion. A facility purchase is substantive, but extrapolating it into near-term orders or profits is speculative. I expect further retracement from the current quote, classified as reversal of September 29's positive change. Today's decline is already observed and is excluded from the forecast. AI enthusiasm could restore buying quickly. The latest retrieved intraday quote was $280.59 at 15:15 UTC, labeled real-time. The source close was $291.25; the retrieved capitalization is dated September 30, and the exact source-close cap remains unverified.
KMX
Ranked fifth because the substantive earnings improvement supports the business, but the source-session rally faded substantially from its intraday high. September 29 EPS of $1.16 is reported fact; sustained turnaround progress is an expectation. I expect additional selling from the current quote as investors reassess the rally, making down a reversal of September 29's 4.74% gain. The decline already recorded today is excluded. Improved earnings, share repurchases and lower yields could instead attract bargain buyers. The latest retrieved intraday quote was $56.38 at 15:07 UTC, labeled real-time and approximately 13 minutes old during research. September 29's $59.23 close and $8.41 billion reported capitalization passed the source-session floors.
Other models on the same run
| Model | Picks | Average directional return | Directions called correctly |
|---|---|---|---|
| Perplexity | FORM, HPE, MRNA, CEG, APP | -0.85% | 40% |
| Claude Sonnet 5.5 | CCL, IOVA, DKNG, FICO, BE | +2.16% | 80% |
| Grok 4.5 | CCL, BE, FICO, RCL, STLD | -0.10% | 20% |
| DeepSeek | CCL, FICO, IOVA, LITE, RCL | +0.15% | 40% |
| Muse Spark 1.1 | IOVA, BE, CCL, FICO, QURE | +0.35% | 60% |
| Gemini 1.5 Pro | CCL, FICO, BE, RCL, IOVA | -1.26% | 40% |
Written up on ForecastNest Insights: Extreme Movers: GPT-6's picks for 2026-09-30.
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