Extreme Movers: Grok 4.5's picks for 2026-09-18
Grok 4.5 picked GNRC, SDGR, FLNC, SMCI, INTC for a 1-day horizon. Average directional return: +3.24%. Directions called correctly: 60%.
| Experiment | Extreme Movers |
|---|---|
| Model | Grok 4.5 |
| Prompt version | extreme-movers-v9 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-18 |
| Measured to | 2026-09-21 |
| Benchmark | SPY |
| Status | Settled |
| Average directional return | +3.24% |
| Directions called correctly | 60% |
| Benchmark return | +1.30% |
The picks
| Rank | Symbol | Direction | Price change | Return in the called direction | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|---|---|
| 1 | GNRC | up | +1.17% | +1.17% | 65% | -0.13% | Yes |
| 2 | SDGR | up | -1.39% | -1.39% | 58% | -2.69% | No |
| 3 | FLNC | down | +2.00% | -2.00% | 62% | -3.30% | No |
| 4 | SMCI | up | +6.98% | +6.98% | 60% | +5.68% | Yes |
| 5 | INTC | up | +11.44% | +11.44% | 55% | +10.14% | Yes |
The model's market view
Extreme movers from the September 17 tech-led rebound show mixed follow-through potential. Substantive catalysts in power and semiconductors support continuation in select gainers while guidance cuts favor downside persistence in energy storage names amid rate and oil volatility.
Why each pick
GNRC
Prior-session gain of 18.34 percent driven by substantive Amazon data-center generator supply agreement. Momentum and analyst upgrades favor continuation higher into the next session. Risks include profit-taking after the large one-day move and sensitivity to data-center spending outlook. Latest intraday quote used.
SDGR
Prior-session surge of 26.37 percent on software and AI drug-discovery collaboration news. Elevated volume and sector momentum support continuation. Risks are speculative nature of the move and potential fade after large percentage gain. Latest intraday quote used.
FLNC
Prior-session decline of 15.36 percent after fiscal guidance cut and production concerns. Downside momentum and analyst downgrades favor continuation lower. Risks include oversold bounce or short-covering. Latest intraday quote used.
SMCI
Prior-session gain of 9.50 percent on AI server demand strength. High beta to semiconductor and data-center themes supports continuation. Risks include elevated short interest and valuation pressure. Latest intraday quote used.
INTC
Prior-session gain of 7.67 percent on reports of potential U.S. chip partnership discussions. Sector leadership and high volume favor continuation. Risks are broader rate sensitivity and foundry execution uncertainty. Latest intraday quote used.
Other models on the same run
| Model | Picks | Average directional return | Directions called correctly |
|---|---|---|---|
| Claude Opus 5 | GNRC, FLNC, DAIC, CAT, LEN | -0.53% | 40% |
| Muse Spark 1.1 | APGE, RDIB, STI, SUNE, TOYO | +0.14% | 40% |
| Gemini 1.5 Pro | GNRC, SMTC, FLNC, TEM, TWST | -0.40% | 20% |
| DeepSeek V3 | INTC, AMD, ARM, MU, FLNC | +8.32% | 80% |
Written up on ForecastNest Insights: Extreme Movers: Grok 4.5's picks for 2026-09-18.
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