Mean reversion assumes price will return toward an average after an extreme move. It can work in range markets and fail badly in strong trends.
Core idea
When price stretches far from a mean, such as a moving average or the middle Bollinger Band, traders look for a snap back. Indicators like RSI help spot stretched conditions.
Good conditions
Stable ranges, mean reverting sectors, and instruments with bounded intraday behavior suit this style. Forex pairs in tight ranges are a classic example. Nordic large caps in earnings quiet weeks sometimes mean revert on hourly charts.
Bad conditions
Parabolic trends, macro shocks, and gap news days punish fade traders. If price keeps printing new extremes, the mean is moving. Respect that.
Entry and exit
Enter near an outer band or extreme RSI with a tight stop beyond the extreme. Target the mean or the opposite band. Risk reward must justify the stop distance.
Balance with trend following
Many traders trend follow on daily charts and mean revert on shorter frames. Write rules so the styles do not fight each other on the same symbol without a plan.
NordTraders perspective
Our engine is filter-first, not mean reversion first. A stretched stock still needs philosophy alignment and minimum risk reward before any report appears.