Factor Lab Daily Brief — 2026-06-09

1. Full Factor IC Test (21-day holding)

FactorIC MeanICIRp-valueL/S ReturnSignal
EP-0.0624-0.742 ⭐0.00005 ⭐+3.87%Effective
BP+0.0056+0.0780.635+0.82%Not significant
FCF Yield-0.0589-1.426 ⭐<0.0001 ⭐+3.04%Effective
ROE-0.0414-1.230 ⭐<0.0001 ⭐+1.11%Effective
Mom+0.2241+2.697 ⭐<0.0001 ⭐-8.07% ⭐Strong/Monotonic
Vol+0.1320+1.051 ⭐<0.0001 ⭐-7.61%Effective
Size+0.0479+1.250 ⭐<0.0001 ⭐-2.06%Effective

Key Findings:

  • Momentum ICIR=2.70 is the strongest predictive factor, but L/S return of -8.07% with monotonic排列 signals a momentum reversal — classic crowding-induced mean reversion setup.
  • Volatility factor aligns with momentum (low-vol outperforms), ICIR=1.05, L/S -7.61%.
  • Value cluster (EP, FCF Yield, ROE) shows negative IC with positive L/S — low-valuation stocks outperforming. Defensive signal.
  • BP the only insignificant factor, p=0.635.

Factor IC

2. Momentum by Sector

SectorIC MeanICIRL/S ReturnSignal
Information Technology+0.524+2.584 ⭐-28.54% ⭐Extreme/Monotonic
Industrials+0.266+2.878 ⭐-7.14% ⭐Strong/Monotonic
Financials+0.309+2.626 ⭐-7.19%Strong
Consumer Discretionary+0.252+2.110 ⭐-6.21% ⭐Effective/Monotonic
Consumer Staples+0.209+1.341 ⭐-4.67%Effective
Utilities+0.199+1.007 ⭐-0.63%Marginal
Real Estate+0.124+0.840 ⭐-3.83%Marginal
Health Care-0.128-1.206 ⭐+7.51%Contrarian

Sector Signals:

  • IT sector momentum at extremes: IC=+0.524 (highest), L/S -28.54% — a handful of mega-cap tech stocks absorbing all market attention with severe internal dispersion.
  • Health Care contrarian: Negative IC with +7.51% L/S — low momentum outperforms, pure defensive play.
  • Systematic crowding: All sectors (except healthcare) show “momentum wins” pattern — the uniformity itself is a warning.

3. Anomaly Detection

✅ All factors within normal range. No anomalies flagged.

4. Strategy Implications

  1. Momentum in danger zone: Higher ICIR + more extreme L/S returns = closer to reversal. IT’s -28.54% L/S is historically extreme.
  2. Value gaining traction: EP, FCF Yield, ROE all effective — overweight low-valuation defense.
  3. Healthcare is the only sector with reverse momentum — natural hedge.
  4. Watch for crowding: When every sector shows monotonic “momentum wins,” the crowded trade is likely at its peak.

Sector Momentum