Market Regime Analysis

Your Edge Changes With Market Conditions

One of the most important and underappreciated insights in systematic trading: no edge works in all market conditions. The market cycles through different regimes, and your system's performance depends heavily on which regime you're in.

The Two Primary Regimes

Trending Regime

• Price moves directionally with pullbacks and continuations
• Momentum strategies work well
• Mean reversion strategies work poorly
• Higher win rates for trend-following setups
• Lower win rates for counter-trend setups

Ranging Regime

• Price oscillates between support and resistance without a clear direction
• Mean reversion strategies work well
• Momentum and breakout strategies fail repeatedly
• "Breakouts" tend to be false — price reverts back into the range
• Counter-trend setups have higher win rates

Identifying the Current Regime

Simple trend filter: If price is above the 200-period SMA on the daily chart, bias is bullish trending. Below = bearish or ranging.

ADX (Average Directional Index): ADX above 25 typically indicates trending. Below 20 indicates ranging.

Bollinger Band Width: Wide bands indicate trending/high volatility. Narrow bands indicate ranging/low volatility.

Analyzing Your Performance by Regime

If you've logged whether the market was trending or ranging when you took trades (through notes or specific tags), you can filter your Tradapt analytics by regime.

Without explicit regime tags, proxy metrics work:

• VIX level at trade time (low VIX often = ranging, high VIX = trending/volatile)
• SPY position relative to 50-day moving average
• Day type: "Trend day" vs "Choppy day" (a quick annotation you can add to journal entries)

Adapting to Different Regimes

Some traders trade only one regime and stop entirely when conditions change. This is disciplined but requires patience.

Others have different playbooks for different regimes — one for trending, one for ranging — and switch based on conditions.

The worst approach: using the same setups regardless of regime, wondering why performance is inconsistent. The inconsistency is the regime effect.

Regime Monitoring as a Standing Practice

Add a brief regime assessment to your pre-market routine:

• "Today the market appears to be in a [trending / ranging] regime based on [indicator]"
• "My active setups for today are [list based on regime]"

Over time, this improves your setup selection and reduces performance degradation during unfavorable regime periods.