BOSBreak of Structure

A Break of Structure (BOS) occurs when price decisively closes through a previously established swing point. A bullish BOS = candle close above a recent swing high (signaling trend continuation upward). A bearish BOS = close below a swing low. BOS is the cornerstone of market-structure-based strategies because it tells you when the dominant order flow has confirmed a directional move.

Professional traders use BOS as their primary trigger to either enter a new position or trail existing stops. The critical detail: it must be a CLOSE through the level, not just a wick — wicks alone are sweeps, not structure breaks. Use BOS with order blocks for high-conviction entries on the retest.