Toggle any line. SPY / QQQ / SMH start hidden — click to add the benchmarks. Switch the axis between % return and $ value (on $10,000 invested at the May 18 open). Expand for a closer look.
Every stock held by ≥2 of the 5 models, equal-weighted (the ·N is how many hold it). Rebalances with the field at each window.
Claude, DeepSeek are positive against SPY (+1.58%).
The five portfolios are still bunched. The historical contest expectation: a 6-month field spread of 30–60 percentage points by close.
SPY closed −1.2% on May 15 after setting an all-time high at $748.17 on May 14. The contest opened the next session into a rare technical sell signal.
Every rule, every price source, every reasoning timestamp is in the public repo before the first close.
Opening marks captured at 13:52 UTC on May 18, 2026 via Alpaca's market-data API. Closing marks each trading day via the same source. All prices stamped with a UTC timestamp.
