Stock Selection: Grok 4.5's picks for 2026-09-08
Grok 4.5 picked AAPL, NVDA, XLE, MU, AVGO for a 1-day horizon. Portfolio return vs SPY: +0.41%. Picks that beat SPY: 40%.
| Experiment | Stock Selection |
|---|---|
| Model | Grok 4.5 |
| Prompt version | stock-selection-v4 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-04 |
| Measured to | 2026-09-08 |
| Benchmark | SPY |
| Status | Settled |
| Portfolio return vs SPY | +0.41% |
| Picks that beat SPY | 40% |
| Benchmark return | -0.55% |
The picks
| Rank | Symbol | Return | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|
| 1 | AAPL | -1.17% | 66% | -0.62% | No |
| 2 | NVDA | -2.01% | 63% | -1.46% | No |
| 3 | XLE | +1.11% | 61% | +1.66% | Yes |
| 4 | MU | -1.61% | 57% | -1.06% | No |
| 5 | AVGO | +2.98% | 54% | +3.53% | Yes |
The model's market view
Post-Labor Day session opens against a backdrop of elevated Treasury yields after a stronger-than-expected August jobs report, persistent Middle East oil volatility supporting energy, and selective AI/tech resilience. Apple’s high-profile product event on September 9 creates pre-positioning flows, while PPI and CPI later in the week keep macro sensitivity high. Expect a mixed tape with potential relative strength in energy and event-driven names versus broad SPY beta.
Why each pick
AAPL
Pre-event positioning into the September 9 keynote under new CEO leadership, expected to showcase the foldable iPhone Ultra alongside iPhone 18 Pro models. Historical tendency for constructive flows into Apple hardware events can support relative outperformance even if some analysts flag pricing or margin risks. Risks: any early skepticism on foldable pricing, volumes, or margin pressure could reverse gains; high beta to broader tech and yields.
NVDA
Sustained AI infrastructure demand and leadership positioning keep Nvidia as a core relative-strength candidate versus the broader index. Recent data-center commentary and ecosystem activity continue to underpin sentiment. Risks: elevated valuation leaves the stock vulnerable to any hawkish rate or inflation signals; single-day swings can be large on macro headlines.
XLE
Energy has shown clear recent leadership on Middle East supply concerns and crude strength; the sector ETF offers concentrated exposure to integrated majors and related names that have outperformed SPY on geopolitical catalysts. Risks: rapid de-escalation headlines or a broad risk-off move could pressure oil-linked assets; concentration risk in a handful of large holdings.
MU
Memory demand tied to AI accelerators remains structurally tight, supporting episodic outperformance in the semiconductor complex. Positive guidance trends and customer commitments provide a fundamental tailwind for relative strength. Risks: cyclical memory pricing volatility and sensitivity to any AI-capex skepticism or rising yields.
AVGO
Custom silicon and networking exposure continues to benefit from hyperscaler AI spending, offering diversified semiconductor upside beyond pure GPU names. Management commentary on multi-year AI revenue growth supports constructive positioning. Risks: valuation and any slowdown signals in custom ASIC demand; broader semi beta to rates and risk sentiment.
Other models on the same run
| Model | Picks | Portfolio return vs SPY | Picks that beat SPY |
|---|---|---|---|
| DeepSeek R1 | AMD, MU, NVDA, ORCL, MRVL | +1.64% | 60% |
| Gemini 1.5 Pro | NVDA, AAPL, META, MSFT, AMZN | -0.54% | 20% |
| GPT-5.6 Sol | SOXL, MU, SNDK, NVDA, IONQ | +1.31% | 60% |
| Muse Spark 1.1 | NVDA, AAPL, ORCL, AVGO, MSFT | +0.75% | 40% |
| Kimi | XLE, BIDU, STRL, SMTC, WDC | +2.44% | 80% |
Written up on ForecastNest Insights: Stock Selection: Grok 4.5's picks for 2026-09-08.
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