Stock Selection: Muse Spark 1.1's picks for 2026-09-09
Muse Spark 1.1 picked SNDK, CBRS, SOXL, CEG, IONQ for a 1-day horizon. Portfolio return vs SPY: -0.67%. Picks that beat SPY: 40%.
| Experiment | Stock Selection |
|---|---|
| Model | Muse Spark 1.1 |
| Prompt version | stock-selection-v6 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-08 |
| Measured to | 2026-09-09 |
| Benchmark | SPY |
| Status | Settled |
| Portfolio return vs SPY | -0.67% |
| Picks that beat SPY | 40% |
| Benchmark return | -0.46% |
The picks
| Rank | Symbol | Return | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|
| 1 | SNDK | +1.51% | 75% | +1.97% | Yes |
| 2 | CBRS | -1.79% | 73% | -1.32% | No |
| 3 | SOXL | +2.11% | 70% | +2.57% | Yes |
| 4 | CEG | -1.72% | 68% | -1.26% | No |
| 5 | IONQ | -5.76% | 66% | -5.29% | No |
The model's market view
Sep 8 close showed strong rebound in semis and defensives after Sep 4 jobs-driven selloff. SPY closed $765.88 off ATH $777.88, reclaiming $762 support. Momentum favors AI infrastructure: memory (SNDK), custom AI chips (CBRS), test (SOXL 3x beta), plus nuclear power (CEG) and quantum (IONQ) into investor day. Expect risk-on continuation to outperform SPY on Sep 9 as yield pressure eases and oil headlines support energy, while oversold tech catches bid.
Why each pick
SNDK
SNDK closed $1740 Sep 8 +11.9% from $1554.99, market cap $254.7B, 1-month +43.54%, YTD +633%. Catalyst substantive: NAND pricing surge and AI storage demand. Momentum strongest among large caps Sep 4-8, volume heavy. Risk: parabolic move prone to profit-taking if memory pricing cools, but trend remains intact to outperform SPY.
CBRS
CBRS closed $210.05 +10.3% Sep 4 to Sep 8, 5-day +17.29%, announcing Finland AI data center. Cerebras custom AI accelerator demand correlates with Broadcom $21.7B AI guide +236% YoY. Market cap $49.9B. Benefits from AI infra capex. Risk: high beta 5.3 and valuation rich, but investor enthusiasm supports outperformance vs SPY.
SOXL
SOXL 3x semi bull closed $123.27 +5.1% Sep 8, previous $117.28, 52-week range $26.57-$302, market cap $21.59B. Tracks SOX 3x, leverages SNDK, NVDA, AVGO strength. Strong Sep 8 bounce after Sep 4 pullback indicates momentum continuation. Risk: 3x decay and rate sensitivity, but in up market expected to outperform SPY 3x on beta.
CEG
CEG closed $299.05 Sep 8, 5-day +8.06%, 1-month +10.8%, utilities only green sector Sep 4. Nuclear leader benefiting from AI data center power deals and defensive rotation as yields volatile. Market cap $105.9B. Relative strength vs SPY on risk-off days. Risk: YTD -15.35% from ATH $401.70, rate pressure on utilities, but near-term momentum supports outperformance.
IONQ
IONQ closed $40.47 Sep 8, previous $39.52, investor day Sep 8 catalyst. Northland raised target to $70 from $55 Outperform citing Broad Quantum Advantage, revenue outlook raised to $450-460M with SkyWater acquisition. 5-day +3.24% despite quantum peer weakness. High beta 3.35 offers outsized move vs SPY if investor day delivers. Risk: $254M operating loss H1, valuation 50x sales, but event-driven momentum favors outperformance.
Other models on the same run
| Model | Picks | Portfolio return vs SPY | Picks that beat SPY |
|---|---|---|---|
| GPT-5.6 Sol | MU, AMD, QCOM, CEG, BE | +0.97% | 60% |
| Gemini 1.5 Pro | CRWV, ROIV, INTC, LITE, META | +1.51% | 80% |
| Grok 4.5 | INTC, MU, AMD, GLW, XLE | +2.43% | 100% |
| DeepSeek V3 | IONQ, CEG, CHYM, AVO, AAPL | +1.15% | 60% |
| Claude Opus 5 | XLE, COP, MU, LNG, INTC | +1.73% | 100% |
Written up on ForecastNest Insights: Stock Selection: Muse Spark 1.1's picks for 2026-09-09.
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