Extreme Movers: Gemini 1.5 Pro's picks for 2026-09-18
Gemini 1.5 Pro picked GNRC, SMTC, FLNC, TEM, TWST for a 1-day horizon. Average directional return: -0.40%. Directions called correctly: 20%.
| Experiment | Extreme Movers |
|---|---|
| Model | Gemini 1.5 Pro |
| 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 | -0.40% |
| Directions called correctly | 20% |
| Benchmark return | +1.30% |
The picks
| Rank | Symbol | Direction | Price change | Return in the called direction | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|---|---|
| 1 | GNRC | down | +1.17% | -1.17% | 85% | -2.47% | No |
| 2 | SMTC | up | -0.06% | -0.06% | 80% | -1.35% | No |
| 3 | FLNC | down | +2.00% | -2.00% | 85% | -3.30% | No |
| 4 | TEM | down | +0.83% | -0.83% | 75% | -2.13% | No |
| 5 | TWST | up | +2.08% | +2.08% | 80% | +0.78% | Yes |
The model's market view
On September 18, 2026, the US equity market is displaying mixed dynamics following a volatile post-FOMC session. Yesterday, tech and AI-adjacent names experienced massive relief rallies, while energy and certain industrial stocks faced pressure. Today, we are seeing localized profit-taking in some of yesterday's high-beta speculative winners, whereas stocks with strong underlying momentum continue to run. Meanwhile, companies dealing with substantive operational downgrades are facing sustained selling pressure as capital rotates into safer quality names.
Why each pick
GNRC
Generac Holdings surged 18.34% on September 17. However, sourced from a live intraday quote at 10:25 AM EDT on September 18, the stock is trading lower at $203.32 compared to its previous close of $207.23. This points to a speculative downward reversal as early buyers lock in their profits following yesterday's massive gap up.
SMTC
Semtech Corp gained 6.35% on September 17 and hit a new 52-week high, driven by strong analyst price targets and AI-adjacent momentum. Sourced from a live intraday quote at 10:26 AM EDT on September 18, the stock continues its climb at $181.18. This substantive buying pressure supports an upward continuation.
FLNC
Fluence Energy plunged 16.96% in the previous session following a substantive Goldman Sachs downgrade tied to operational setbacks at its Houston facility. A live intraday quote at 10:27 AM EDT on September 18 shows the stock falling further to $7.23, confirming a downward continuation as investors continue to shed risk.
TEM
Tempus AI jumped 14.9% on September 17 on unusually high trading volume. This speculative surge is already fading; based on a live intraday quote at 10:27 AM EDT on September 18, shares have retreated to $78.10, cementing a downward reversal thesis for the session.
TWST
Twist Bioscience surged 14.14% on September 17, extending a substantive multi-day winning streak in the biotech space. A live intraday quote at 10:26 AM EDT on September 18 places the stock at $160.71, indicating that buyers are still aggressively stepping in, fueling an upward continuation.
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% |
| Grok 4.5 | GNRC, SDGR, FLNC, SMCI, INTC | +3.24% | 60% |
| DeepSeek V3 | INTC, AMD, ARM, MU, FLNC | +8.32% | 80% |
Written up on ForecastNest Insights: Extreme Movers: Gemini 1.5 Pro's picks for 2026-09-18.
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