Gahow Wang 0e378efa67 research: point-in-time factor research harness (research/lab) ...

Event-driven long-only simulator with next-open fills, CN tradability
(halts, limit-up/down, stamp duty), PIT S&P 500 / CSI 300 membership,
rebalance-phase averaging, factor IC scans, maximin stepwise composite
search across 5-year blocks, walk-forward LightGBM/ridge combiners,
overlays, and deflated Sharpe. Fetchers pull 20y US OHLCV from Yahoo and
CSI 300/500 ever-members (membership snapshot from baostock, bars from
Yahoo). Research data lives in data/research/ (ignored).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-09-25 19:11:59 +08:00

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