Regime Persistence

Regime persistence refers to the duration that a market remains within a specific state before transitioning to another. High persistence indicates that once a regime begins, it is likely to continue for a significant period.

Low persistence suggests a volatile environment where regimes change frequently. Understanding persistence is critical for determining the appropriate time horizon for a trading strategy.

A strategy designed for a trending market will fail if the regime lacks persistence and reverts to a range-bound state. Quantitative models use transition probabilities to estimate this persistence.

It is a key factor in assessing the stability of market conditions.