Gahow Wang 2c19e5efe5 feat: US 3-sleeve portfolio and lowrisk_top20; US portfolio research harness
Register two live strategies from the 2026-09-29 US research:
- lowrisk_top20: idiosyncratic vol + low beta, top 20, monthly, buffer 2
  (new `low_risk` signal in strategies/robust_momentum.py)
- us_three_sleeve: 1/3 each of overnight_recovery_top10, lowrisk_top20 and
  trend_rider_v7_vt24 in one account (strategies/sleeve_portfolio.py, a
  mixed stock+ETF strategy). Sleeve shares drift with their returns and reset
  at a month start once any is >25% off its share.

Research (research/lab, S&P 500 PIT, next-open fills):
- rotation.py / persistence.py: walk-forward factor weighting (factor
  momentum, rolling IC, market state) and last-year's-winner selection do not
  beat a fixed composite
- us_sweep.py: holdings count, z/vol weights, dynamic N, tranching and market
  overlays (Faber SMA, de-risk vol target, statistical jump model,
  momentum state); engine.py gains zvol weighting and dyn_n
- fetch_us_fundamentals.py / fundamentals.py / fund_eval.py: SEC EDGAR
  point-in-time fundamentals (first-filed values) and factor tests
- trend_rider_long.py / us_final.py: 2010-2026 TrendRider curves and the
  3-sleeve check (2011-2026 Sharpe 1.21, CAGR 21.9%, MaxDD -23%)

Web-UI engine, 2017-09..2026-09, $2/order: us_three_sleeve CAGR 28.9%,
Sharpe 1.49, MaxDD -24.8%.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-09-29 01:03:50 +08:00
2026-04-05 00:50:26 +08:00

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