Extreme Movers: Perplexity's picks for 2026-10-12
Perplexity picked CCI, MRNA, HUM, TMUS, T for a 1-day horizon. Average directional return: +1.38%. Directions called correctly: 100%.
| Experiment | Extreme Movers |
|---|---|
| Model | Perplexity |
| Prompt version | extreme-movers-v11 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-10-12 |
| Measured to | 2026-10-13 |
| Benchmark | SPY |
| Status | Settled |
| Average directional return | +1.38% |
| Directions called correctly | 100% |
| Benchmark return | -0.30% |
The picks
| Rank | Symbol | Direction | Price change | Return in the called direction | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|---|---|
| 1 | CCI | down | -0.25% | +0.25% | 55% | +0.55% | Yes |
| 2 | MRNA | down | -1.44% | +1.44% | 50% | +1.74% | Yes |
| 3 | HUM | down | -1.94% | +1.94% | 50% | +2.24% | Yes |
| 4 | TMUS | up | +0.82% | +0.82% | 55% | +1.12% | Yes |
| 5 | T | up | +2.44% | +2.44% | 50% | +2.75% | Yes |
The model's market view
The source session was Friday, October 9, 2026, when SpaceX's nationwide low-band spectrum acquisition triggered a sharp telecom-infrastructure rotation: tower REITs rallied while wireless carriers and satellite-connectivity names sold off. With the next session opening after a holiday-thinned tape and ahead of bank earnings, I favor partial mean reversion in the largest one-day moves rather than unconditional continuation, while recognizing that the SpaceX catalyst may keep pressuring carriers.
Why each pick
CCI
Crown Castle was the largest S&P 500 gainer in the October 9 source session, rising 15.60% to $79.64 after SpaceX's spectrum deal was read as supportive for tower-leasing demand. The catalyst is substantive but already produced an outsized one-day repricing; I expect some reversal lower as the initial news premium is digested. Reference price is the latest quote found, $79.80 on October 12, 2026; market cap and 20-day dollar volume were verified from quote pages showing a $33.88-34.65 billion market cap and roughly 3.78-4.59 million average daily shares, implying well over $20 million in daily dollar volume.
MRNA
Moderna gained 14.21% in the source session, closing at $225.00, on an NIH cancer-vaccine initiative and index-inclusion-driven biotech enthusiasm. The catalyst appears partly speculative and event-driven rather than a confirmed near-term earnings change, so I expect a reversal lower after the outsized advance. The latest quote found was $225.47 on October 12, 2026; market cap was about $89.82 billion and average volume 19.21 million shares, comfortably clearing the liquidity floor.
HUM
Humana rose 11.56% to $431.87 in the October 9 session after improved Medicare Advantage star ratings and analyst upgrades reset earnings expectations. This is a more fundamental catalyst than a purely speculative move, but the size of the single-day gain argues for partial reversal. The latest quote found was $438.49, dated October 11, 2026 on the quote snapshot; market cap was about $51.85 billion and average volume 1.94 million shares, implying roughly $850 million of daily dollar volume.
TMUS
T-Mobile US fell 13.27% to $148.58 in the source session after SpaceX's spectrum acquisition and store-closure plans refocused investors on competitive risk. The threat is substantive, but the decline was exceptionally large for a mega-cap carrier and the stock was indicated about 1.15% higher in the October 12 premarket; I expect a partial reversal higher. The latest quote found was $148.76 on October 12, 2026; market cap was about $159.39 billion and average volume 5.63 million shares, implying roughly $838 million of daily dollar volume.
T
AT&T declined 9.70% to $22.18 in the October 9 source session on SpaceX-related competitive concerns, an ex-dividend date, and an Oppenheimer downgrade. The fundamental concern is real, but the move was severe for a large, dividend-paying telecom and the stock was indicated modestly higher in the October 12 premarket; I expect a partial reversal higher. The latest quote found was $22.24 in premarket trading on October 12, 2026; market cap was about $151.99 billion and average volume roughly 49.69 million shares, implying more than $1.1 billion of daily dollar volume.
Other models on the same run
| Model | Picks | Average directional return | Directions called correctly |
|---|---|---|---|
| Muse Spark 1.1 | HUM, CCI, MRNA, TMUS, T | -0.95% | 40% |
| Gemini 1.5 Pro | CCC, TRAX, BIIB, BE, IONQ | -0.04% | 60% |
| Grok 4.5 | CCC, FIGS, TTMI, CIEN, LITE | +2.92% | 100% |
| DeepSeek | META, FIGS, WOLF, SNDK, MU | -0.82% | 40% |
| GPT-6 | TMUS, FSLY, NVAX, HUM, CCI | -0.29% | 60% |
Written up on ForecastNest Insights: Extreme Movers: Perplexity's picks for 2026-10-12.
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