Extreme Movers: Grok 4.5's picks for 2026-10-02
Grok 4.5 picked SYNA, STX, NKE, ACN, WDC for a 1-day horizon. Average directional return: -2.16%. Directions called correctly: 40%.
| Experiment | Extreme Movers |
|---|---|
| Model | Grok 4.5 |
| Prompt version | extreme-movers-v11 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-10-02 |
| Measured to | 2026-10-05 |
| Benchmark | SPY |
| Status | Settled |
| Average directional return | -2.16% |
| Directions called correctly | 40% |
| Benchmark return | +0.00% |
The picks
| Rank | Symbol | Direction | Price change | Return in the called direction | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|---|---|
| 1 | SYNA | up | -0.73% | -0.73% | 72% | -0.73% | No |
| 2 | STX | down | +7.68% | -7.68% | 68% | -7.68% | No |
| 3 | NKE | down | -1.25% | +1.25% | 65% | +1.25% | Yes |
| 4 | ACN | down | -3.65% | +3.65% | 62% | +3.64% | Yes |
| 5 | WDC | down | +7.31% | -7.31% | 60% | -7.31% | No |
The model's market view
US equities mixed mid-session on Oct 2 with strong sector dispersion. Storage names STX and WDC under pressure on supply/competition headlines after prior gains; SYNA continuing higher on revised all-cash ON acquisition terms; NKE extending declines on restructuring and weak outlook; ACN giving back part of prior-day earnings-driven surge. Overall tone favors selective continuation in high-conviction movers with liquid large/mid-caps meeting size and volume screens.
Why each pick
SYNA
Source-session prior close change +4.69% on Oct 1; revised all-cash $123/share acquisition by ON Semiconductor is a substantive catalyst driving continuation higher. Latest intraday quote ~$120.67 (market open Oct 2, delayed ~15-30 min) confirms price >$5, market cap ~$4.72B and elevated volume supporting liquidity. Hypothesis continuation of the positive prior move into the next full session close. Risks include deal completion uncertainty or broader semi weakness.
STX
Source-session prior close change +2.52% on Oct 1; sharp sell-off today on HDD supply and competition headlines represents continuation of pressure after the prior gain. Latest intraday quote ~$839.13 (market open Oct 2) meets all floors (price, ~$190B market cap, multi-billion daily dollar volume). Hypothesis continuation lower into next session close. Risks include oversold bounce or positive storage demand news.
NKE
Source-session prior close change -0.71% on Oct 1; further decline today on restructuring, job cuts and weaker revenue guidance is continuation of the negative prior move. Latest intraday quote ~$33.06 (market open Oct 2) satisfies screens (price >$5, market cap ~$49B, high average dollar volume). Hypothesis continuation lower. Risks include short-covering or better-than-feared brand recovery signals.
ACN
Source-session prior close change +15.78% on Oct 1 driven by strong earnings and AI bookings; partial give-back today is a reversal of that large positive move. Latest intraday quote ~$201.25 (market open Oct 2) clears all thresholds (price, market cap ~$130B, ample liquidity). Hypothesis reversal lower into next close. Risks include renewed buying on AI demand confirmation.
WDC
Source-session prior close change estimated positive in line with sector peers on Oct 1; sharp decline today mirroring STX on storage supply headlines supports continuation lower. Latest intraday quote ~$414.33 (market open Oct 2) meets criteria (price >$5, market cap well above $1B, high dollar volume). Hypothesis continuation of the negative session pressure. Risks include sector rebound or earnings-related support.
Other models on the same run
| Model | Picks | Average directional return | Directions called correctly |
|---|---|---|---|
| Gemini 3 Pro | ACN, SNPS, FICO, PSKY, NKE | -0.71% | 40% |
| Perplexity | ACN, SNPS, COHR, NKE, STX | -1.94% | 40% |
| GPT-5.6 Sol | ACN, SNPS, NKTR, PSKY, MAT | -2.24% | 40% |
| Muse Spark 1.1 | ACN, SNPS, COHR, LITE, AVGO | -0.18% | 60% |
| Claude Opus 5.5 | SNPS, LQDA, TEM, VICR, ACN | +0.06% | 40% |
| DeepSeek | ACN, SNPS, VICR, NU, LQDA | +1.97% | 40% |
Written up on ForecastNest Insights: Extreme Movers: Grok 4.5's picks for 2026-10-02.
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