Full Factor IC Test (21-Day Holding)

FactorIC MeanICIRp-valueLong-ShortDirection
Momentum (mom)+0.2241+2.70 ⭐0.000 ⭐-8.07% ⭐MonotonicWinners keep winning
Volatility (vol)+0.1320+1.05 ⭐0.000 ⭐-7.61%Low vol outperforms
Size+0.0479+1.25 ⭐0.000 ⭐-2.06%Large caps lead
Book/Price (bp)+0.0056+0.080.635+0.82%Not significant
ROE-0.0414-1.23 ⭐0.000 ⭐+1.11%Reversal
FCF Yield-0.0589-1.43 ⭐0.000 ⭐+3.04%Reversal
Earnings Yield (ep)-0.0624-0.74 ⭐0.000 ⭐+3.87%Reversal

Factor Rankings

  1. 🥇 Momentum: ICIR +2.70 — strongest signal market-wide, monotonic long-short decay
  2. 🥈 Volatility: ICIR +1.05 — low-vol strategy effective, capital prefers stable names
  3. 🥉 Size: ICIR +1.25 — large caps relatively favored
  4. ⚠️ Value factors uniformly negative: EP, FCF, ROE all significantly negative IC — cheap getting cheaper

Factor IC

Sector Momentum Decomposition

SectorIC MeanICIRLong-ShortCharacteristic
Info Tech+0.5240+2.58 ⭐-28.54% ⭐Monotonic🔥 Momentum king
Financials+0.3094+2.63 ⭐-7.19%Strong momentum
Industrials+0.2659+2.88 ⭐-7.14% ⭐MonotonicStrong momentum
Cons. Discretionary+0.2522+2.11 ⭐-6.21% ⭐MonotonicStrong momentum
Cons. Staples+0.2088+1.34 ⭐-4.67%Moderate momentum
Utilities+0.1993+1.01 ⭐-0.63%Mild momentum
Real Estate+0.1242+0.84 ⭐-3.83%Weak momentum
Health Care-0.1280-1.21 ⭐+7.51%🔄 Only reversal sector

Sector Landscape

  • Momentum concentrated in Tech + Financials + Industrials: All three IC > +0.25
  • IT extreme divergence: IC +0.524, long-short gap ~29% — extreme winner-loser bifurcation
  • Health Care reversal: Only sector with significant negative IC, mean-reversion signal
  • Defensive sectors mild: Utilities and Real Estate IC +0.12~+0.20

Sector Momentum

Anomaly Detection

✅ All factors within normal fluctuation range. No anomaly alerts.

Summary

Momentum factor dominates for consecutive days with IC +0.22 near yearly highs. Value factors remain ineffective — market is entirely trend-driven with fundamental valuation logic sidelined.

Core tension: Momentum-value divergence at extreme levels. Tech momentum IC +0.52 vs EP factor IC -0.06 point in opposite directions. Historically, when momentum ICIR exceeds +2.5 with all value factors negative, short-term trend can persist but medium-term reversal risk accumulates.

Watch: Health Care reversal signal spreading to other defensive sectors, and any signs of momentum decay in Technology.