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QUANT - LAB MICROSTRUCTURE

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Market microstructure analysis suite for liquidity diagnostics and transaction cost estimation.
Liquidity Metrics:

Return-Volume Sensitivity (Hasbrouck 1991 inspired proxy)
Roll Spread Estimator (Roll 1984) — effective spread from price autocovariance
Amihud Illiquidity Ratio (Amihud 2002) — price impact per dollar volume

Features:

Z-score normalization with configurable lookback
Automatic regime classification (Normal/Elevated/Extreme)
Roll validity detection (Cov < 0 requirement)
Data quality metrics and validity percentage tracking

Interpretation:

RVS: Price sensitivity to order flow (higher = more impact)
Roll: Effective bid-ask spread in bps (undefined when Cov > 0)
Amihud: Illiquidity measure (higher = harder to trade)

Dashboard Includes:

Real-time Z-scores with regime labels
Dollar volume and volume trend (20/60 ratio)
Realized volatility (annualized)
Roll spread validity monitoring

Important:

Z-scores are HEURISTIC thresholds (fat tails apply — ±2σ ≠ 95%)
RVS uses endogenous proxy — NOT true Kyle's Lambda
Roll undefined when serial covariance > 0 (momentum regime)
Research/diagnostic tool only — NOT a trading system

References: Kyle (1985), Roll (1984), Amihud (2002), Hasbrouck (1991), Lee & Ready (1991)

Penafian

Maklumat dan penerbitan adalah tidak bertujuan, dan tidak membentuk, nasihat atau cadangan kewangan, pelaburan, dagangan atau jenis lain yang diberikan atau disahkan oleh TradingView. Baca lebih dalam Terma Penggunaan.