Stock Selection: Grok 4.5's picks for 2026-09-22
Grok 4.5 picked VKTX, AMD, INTC, SOXX, META for a 1-day horizon. Portfolio return vs SPY: -0.07%. Picks that beat SPY: 40%.
| Experiment | Stock Selection |
|---|---|
| Model | Grok 4.5 |
| Prompt version | stock-selection-v8 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-22 |
| Measured to | 2026-09-23 |
| Benchmark | SPY |
| Status | Settled |
| Portfolio return vs SPY | -0.07% |
| Picks that beat SPY | 40% |
| Benchmark return | -0.63% |
The picks
| Rank | Symbol | Return | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|
| 1 | VKTX | +1.46% | 58% | +2.09% | Yes |
| 2 | AMD | -1.29% | 52% | -0.67% | No |
| 3 | INTC | -1.69% | 50% | -1.06% | No |
| 4 | SOXX | -1.35% | 48% | -0.72% | No |
| 5 | META | -0.62% | 47% | +0.01% | Yes |
The model's market view
Equity markets opened higher with continued strength in AI and semiconductor names after a strong prior session; SPY near session highs around 774-775. Biotech momentum and chip-sector follow-through provide the clearest short-term relative strength opportunities versus the broad index.
Why each pick
VKTX
Viking Therapeutics is experiencing a sharp intraday surge on positive clinical update for its obesity candidate VK2735, with shares up over 25-30% in early trading on elevated volume. For a one-session horizon the momentum and news catalyst create a higher probability of continued outperformance versus SPY. Risks include profit-taking after the large move and typical biotech volatility.
AMD
AMD hit record levels and crossed $1 trillion market cap in the prior session on AI demand strength and is trading near highs early today. Semiconductor momentum and relative strength versus the broader market support potential one-day continuation. Risks are mean-reversion after the large prior gain and any sector-wide profit-taking.
INTC
Intel surged more than 12% in the prior session on AI CPU demand commentary and is holding gains in early trading. Continued semiconductor and CPU-related buying flow can support relative outperformance versus SPY over one session. Risks include high beta volatility and possible fade of the prior-day spike.
SOXX
The semiconductor ETF captures broad chip-sector strength that drove the prior session and is positioned for continued relative performance if AI-related buying persists. Diversified exposure reduces single-name risk while retaining upside beta to the theme. Risks are sector rotation or broader market pullback that hits high-beta tech.
META
Meta rose sharply in the prior session on strong adoption of its Muse AI agent and remains in focus with positive analyst commentary. Residual AI momentum can support one-day relative strength versus SPY. Risks include digestion of the large prior gain and any cooling of AI sentiment.
Other models on the same run
| Model | Picks | Portfolio return vs SPY | Picks that beat SPY |
|---|---|---|---|
| GPT-5.6 Sol | PANW, CRWD, META, LRCX, AVGO | +0.73% | 60% |
| Claude Opus 5 | USAR, IWM, EMAT, MP, XXI | -0.37% | 40% |
| Muse Spark 1.1 | GOOG, NVDA, SOXL, IONQ, SMR | -0.47% | 20% |
| Gemini 1.5 Pro | NVDA, SOXL, GOOG, AAPL, MSFT | -1.71% | 20% |
| DeepSeek V3 | VICR, META, AMD, ARM, SHOP | +0.03% | 60% |
Written up on ForecastNest Insights: Stock Selection: Grok 4.5's picks for 2026-09-22.
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