Introductory Context
"Quantitative futures contrarian mean-reversion strategy on Indian derivative markets. Exploiting 1-week cross-sectional overextension with automatic dollar neutrality."
Weekly Derivative Reversal: Fading Cross-Sectional Overextension
While multi-month trends drive macro commodity and equity returns, short-term price movements over 1-to-2 week horizons frequently exhibit Cross-Sectional Mean-Reversion. When market participants react aggressively to headline news, liquidity demands, or margin rebalancing, individual futures contracts often overshoot their fundamental equilibrium value relative to the broader universe.
The Futures Contrarian Trading Strategy calculates the trailing 1-week excess return across all liquid futures, de-means them against the equal-weighted universe benchmark (R_m), and establishes a self-financing, dollar-neutral portfolio that systematically buys relative losers and shorts relative winners.
• The Linear Fade Formula
Market Equal-Weight Benchmark: R_m = (1 / N) × ∑ R_i
Contract Weight: w_i = -γ × (R_i - R_m)
where γ > 0 is the scaling parameter chosen such that ∑ |w_i| = 1.0. Because ∑ (R_i - R_m) = 0, the portfolio is mathematically 100% dollar-neutral.
Volatility Suppression & Activity Filtering
To ensure high-volatility contracts or illiquid instruments do not dominate portfolio risk, two essential quantitative controls are applied:
w_i ∝ -(R_i - R_m) / σ_i
Scales residuals inversely by trailing 20-to-60 day realized volatility σ_i, equalizing the risk contribution across calm and volatile contracts.
v_i = ln(V_t / V_{t-1}), u_i = ln(OI_t / OI_{t-1})
Screens for contracts with surging trading volume without matching increases in open interest—indicating transient speculative churn rather than institutional accumulation.
NSE & MCX Derivative Applications
In Indian financial markets, futures mean-reversion is deployed across two primary asset universes:
- NSE Sector Futures Cross-Section: Trading weekly relative reversals across Nifty Bank, Nifty IT, Nifty Auto, Nifty Metal, and Nifty Energy futures.
- MCX Liquid Commodity Futures: Trading weekly mean-reversion spreads across Crude Oil, Natural Gas, Gold, Silver, Copper, and Zinc.
- Delay-1 Monday Open Execution: The 1-week formation return is computed using Friday 3:30 PM closing prices. Orders are placed at the Monday 9:15 AM market opening bell.
Primary Failure Mode: Persistent Unidirectional Trends
During powerful macroeconomic regime shifts (e.g. crude oil supply embargoes or broad market liquidity cascades), relative winners continue to rally relentlessly for multiple consecutive weeks. The mean-reversion strategy will repeatedly short these winning contracts, incurring significant sequential drawdowns.
Educational and Research Content Only
This strategy documentation is for educational and quantitative backtesting purposes only. Futures trading involves high leverage and margin call risks.