Stock Selection: GPT-5.6 Sol's picks for 2026-09-25
GPT-5.6 Sol picked ARM, QCOM, ADI, AMD, DELL for a 1-day horizon. Portfolio return vs SPY: -4.54%. Picks that beat SPY: 0%.
| Experiment | Stock Selection |
|---|---|
| Model | GPT-5.6 Sol |
| Prompt version | stock-selection-v8 |
| Asked | |
| Horizon | 1-day |
| Measured from | 2026-09-25 |
| Measured to | 2026-09-28 |
| Benchmark | SPY |
| Status | Settled |
| Portfolio return vs SPY | -4.54% |
| Picks that beat SPY | 0% |
| Benchmark return | +0.06% |
The picks
| Rank | Symbol | Return | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|
| 1 | ARM | -10.90% | 72% | -10.96% | No |
| 2 | QCOM | -5.78% | 70% | -5.84% | No |
| 3 | ADI | -0.37% | 68% | -0.43% | No |
| 4 | AMD | -3.33% | 67% | -3.39% | No |
| 5 | DELL | -2.02% | 64% | -2.08% | No |
The model's market view
Technology and semiconductor leadership remains the clearest source of potential SPY outperformance for this one-session window. Early September 25 trading showed several AI-infrastructure and semiconductor names materially outperforming their sector, while the broader setup remains volatile because Treasury yields, oil and geopolitical headlines can rapidly reverse high-beta technology momentum.
Why each pick
ARM
ARM showed one of the strongest relative moves early on September 25, opening about 4.85% higher while the technology-equipment sector was up only about 0.72%. The rebound follows the sharp September 24 decline and is supported by renewed interest in Arm-based CPUs for AI inference, including Meta's Muse workloads and expanding hyperscaler adoption of Arm architectures. Technical data cited on September 25 showed a positive MACD, although Williams %R was already overbought. The quote source available to me still displayed the most recent regular-session close of $306.34 from September 24 rather than a refreshed intraday price, so that verified close is used as reference_price. Main risks are the stock's extreme volatility, premium valuation, recent insider selling and the possibility that today's rebound fades after the recent rapid run-up.
QCOM
QCOM opened about 3.05% higher on September 25 and was materially outperforming its technology-equipment peer group. A renewed global patent-licensing agreement with Apple improves near-term licensing visibility, while Qualcomm's expansion into edge AI, AI PCs, robotics and data-center interconnects gives the market additional catalysts beyond smartphones. September 25 technical readings showed a positive MACD, though momentum was becoming overbought. The accessible quote page was still displaying the September 24 regular-session close of $194.26 rather than a current intraday print, so that verified close is used as reference_price. Risks include rapid post-catalyst profit-taking, Apple continuing to replace Qualcomm modem hardware, elevated short-term momentum and the possibility that the licensing announcement is already substantially priced in.
ADI
ADI was up about 3.18% in September 25 trading versus roughly 0.34% for its technology-equipment sector, providing strong same-session relative momentum. Support comes from better-than-expected recent financial performance, industrial and communications demand, and the planned Alif Semiconductor acquisition, which expands ADI's edge-intelligence exposure. September 25 technical data showed a positive MACD, although Williams %R indicated an overbought condition. The price page available to me had not yet refreshed to an intraday September 25 quote and showed the latest verified regular-session close of $382.61 from September 24, which is therefore used here. Risks include overbought short-term conditions, M&A integration and regulatory uncertainty, increased debt, insider selling and sensitivity of high-multiple semiconductor stocks to Treasury-yield moves.
AMD
AMD retains unusually strong relative momentum after reaching a record area and a roughly $1 trillion market capitalization earlier in the week, supported by renewed optimism about AI servers, CPUs and complete AI-compute systems. September 25 market-mover data showed AMD still positive early in the session while several semiconductor peers were mixed, extending its recent leadership. The accessible quote source displayed $629.26, the September 24 regular-session close, rather than a refreshed September 25 intraday print, so that verified price is used as reference_price. The principal risk is that AMD has already appreciated dramatically in 2026 and is vulnerable to sharp profit-taking, valuation compression, rising bond yields or any reversal in AI-sector sentiment.
DELL
DELL opened about 3.63% higher on September 25, significantly outperforming its technology-equipment sector, as buyers returned after recent weakness. Its fundamental catalyst remains unusually strong AI-server demand, record backlog, recent revenue growth and raised full-year guidance. September 25 commentary described sentiment as extremely bullish, although MACD was neutral and recent technical analysis has warned that the stock became extended after its large 2026 advance. The most recent verified quote I could retrieve was the September 24 regular-session close of $536.02; the accessible data source had not yet supplied a reliable September 25 intraday price. Risks are substantial: the shares have risen several-fold this year, recent insider selling and profit-taking have increased volatility, AI-server margins can be pressured by component costs, and the rebound could fail if investors rotate away from high-beta AI infrastructure names.
Other models on the same run
| Model | Picks | Portfolio return vs SPY | Picks that beat SPY |
|---|---|---|---|
| Claude Opus 5.5 | AMD, INTC, MU, TSM, AKAM | -3.43% | 0% |
| Muse Spark 1.1 | NVDA, MU, PLTR, META, AVGO | -0.97% | 40% |
| Gemini 1.5 Pro | AAPL, NVDA, MSFT, AMZN, GOOGL | +0.69% | 40% |
| Perplexity | QCOM, ARM, AMD, NVDA, SOXL | -4.31% | 20% |
| Grok 4.5 | AKAM, MU, ARM, META, NVDA | -3.79% | 20% |
| DeepSeek | AKAM, META, AMD, BB, HPQ | -3.50% | 0% |
Written up on ForecastNest Insights: Stock Selection: GPT-5.6 Sol's picks for 2026-09-25.
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