Market Regime
A market regime is the prevailing state of a market — trending or ranging, high or low volatility, bullish or bearish — that determines which tools work: trend tools in trends, reversion tools in ranges, and neither during a squeeze.
What it means
Most indicator failure is regime failure: a trend-following tool applied in a range whipsaws, a reversion tool applied in a trend fades a band walk. A regime is the label for the current state, and classifying it comes before choosing a signal. Common classifications: Trend Up / Trend Down / Range / Squeeze (Keltner Rings), bull or bear by the 200 EMA (Event Probability Engine), and volatility percentile buckets (Volatility Storm Tracker).
Regimes are measured, not guessed: slope of a long average, ADX or Efficiency Ratio for trendiness, the Choppiness Index for range, the volatility cone percentile for compression. A good regime reading is stable — it does not flip on every bar — and it is used as a gate rather than a signal.
Statistically, conditioning on regime changes the numbers: a Monday effect in a bull market is a different fact from a Monday effect in a bear market. That is why serious tools report statistics per regime and fall back to pooled data only when the regime sample is too thin.
How to identify it on a chart
- Choose a trendiness measure (ADX, Efficiency Ratio, average slope) and a volatility measure (ATR percentile).
- Set thresholds that change state rarely — a regime should last many bars.
- Route signals: trend tools only in trend, reversion only in range, nothing in squeeze.
Worked example
The Keltner Rings dashboard reads Range; the Choppiness Index is 68. A SuperTrend flip in this state is ignored; a middle-ring rejection is traded toward the average. Two days later the dashboard reads Trend Up — now flips are followed and touches are not faded.
See it on the chart, read it in depth
Frequently asked questions
How many regimes are there?
Two axes cover most of it: trending vs ranging and high vs low volatility. Four combinations are enough for routing.
How do I measure regime?
ADX or the Efficiency Ratio for trend, the Choppiness Index for range, ATR percentile or the volatility cone for compression.
Why not just trade every signal?
Because signals have regime-specific win rates; the same flip is 65% in a trend and 40% in chop.
Which free tools classify regime?
Keltner Rings, the Adaptive Trend Sentinel, the Volatility Storm Tracker and the Directional Strength Index each carry a regime reading.
Related terms
See Market Regime on your TradingView chart
Zeno reads Smart Money structure across timeframes and prints the entry, stop and targets — with a public record of every posted trade. The free indicators draw the concepts this page defines.