Article 14 — Regime Detection in Indian Markets: India VIX and ADX as Filters
Article 14 — Regime Detection in Indian Markets: India VIX and ADX as Filters
title: "Regime Detection in Indian Markets: India VIX and ADX as Filters"
description: "The simplest regime-filter framework that separates trending from ranging from stressed markets — with specific thresholds for Indian equities."
keyword: "regime detection india vix adx"
stage: 2
Premise. Most trading strategies work in one regime and fail in others. Regime detection is the filter that turns strategies on and off.
The 2-variable regime map
Combine ADX(14) on daily Nifty with India VIX:
| ADX / VIX | VIX < 12 (calm) | VIX 12-18 (normal) | VIX 18-25 (elevated) | VIX > 25 (stressed) |
|---|---|---|---|---|
| ADX < 20 (ranging) | Mean-reversion setups | Mean-reversion | Reduce size; event risk | Paper trade only |
| ADX 20-25 (borderline) | Mixed | Mixed | Reduce size | Paper trade only |
| ADX > 25 (trending) | Trend-following | Trend-following | Trend-following reduced | Paper trade only |
The VIX Zone 4 rule
When India VIX crosses 25, stop live trading. Full stop. The data on Zone 4 regimes is unambiguous:
- Correlations spike (diversification breaks)
- Typical strategy edges invert (what was mean-reverting becomes trending and vice versa)
- Retail traders are emotional and over-positioned (exactly when institutions are best positioned to take money from them)
- Zone 4 duration historically 5-30 days
The expected-value calculation on "skip Zone 4 entirely" vs "trade Zone 4 with standard strategies" is dramatically in favour of skipping.
The ADX-25 threshold
ADX(14) above 25 indicates trending. Below 20 indicates ranging. The 20-25 zone is ambiguous; most professional traders treat it as "mixed" and reduce size.
- Mean-reversion strategies (Bollinger reversals, RSI-2, opening-gap-fade) require ADX < 20
- Trend-following strategies (20-EMA pullback, breakout continuation, ORB) require ADX > 25
Running a mean-reversion strategy in ADX > 25 is a documented way to lose money consistently. The regime filter is not optional.
Stage 2 Volume 3 connection
Stage 2 Volume 3 (Multi-Timeframe & Regime Filters) goes deep on this framework with additional filters (sector relative strength, FII/DII flow regimes, macro calendar awareness).
Related reading
- Trading Gap-Up and Gap-Down Opens on Indian Indices: A Rules-Based Framework
- Sector Rotation Strategy on Indian Equities: The Macro Cycle, Relative Strength, and the Three-Sector Portfolio
- Wyckoff Point and Figure Charts on Indian Stocks: The Forgotten Method That Filters Noise
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