Break of Structure (BOS)

What it confirms

Market structure is the sequence of swing highs and lows. In an uptrend, each high exceeds the last and each pullback holds above the previous low. A break of structure is the moment price takes out the most recent swing high, confirming that the sequence is intact.

The word that matters is continuation. A break of structure does not start a trend; it confirms that one already running is still running. That distinction separates it from a change of character, which is the first break against the sequence.

Marking it correctly

• Identify the swing points that matter — pivots with clear candles either side, not every minor wiggle.
• In an uptrend, the reference is the most recent confirmed swing high; in a downtrend, the most recent swing low.
• Require a close beyond the level on your chosen timeframe.
• Redraw structure after each break. The new swing point becomes the next reference.
• Keep one timeframe as the structural reference. Mixing timeframes produces contradictory readings.

How traders apply it

The most common use is as a continuation filter rather than an entry. A confirmed break tells you which direction to take trades in; the entry comes on the pullback that follows, often into the order block or fair value gap created by the breaking move.

Stops sit below the swing low that produced the break. If price returns beneath that point, the structure that justified the trade no longer exists, so the exit is structural rather than arbitrary.

• Direction: only take trades aligned with the most recent confirmed break.
• Entry: the pullback after the break, not the breaking candle itself.
• Stop: beyond the swing point that created the structure.
• Invalidations: a close back through that swing means the read has changed.

Worked example

A market has been making higher highs and higher lows on the 1-hour chart. Price consolidates for several hours, then closes decisively above the most recent swing high. That close is the break of structure.

The trader marks the imbalance left by the breaking move and waits. Price pulls back into that area, the 15-minute structure turns back up, and entry goes there with a stop below the pullback low. The next opposing higher-timeframe level becomes the target.

Common mistakes

• Treating a wick through a swing as a break. Only closes confirm.
• Marking every small swing, which produces a break every few candles and no usable signal.
• Confusing a break of structure with a change of character — one confirms the trend, the other warns against it.
• Chasing the breaking candle instead of waiting for the retracement, which usually means a much wider stop.
• Failing to redraw structure after the break, so the reference level goes stale.

Put it into practice

Frequently asked questions

What is the difference between BOS and CHoCH?

A break of structure is a break in the direction of the existing trend and confirms continuation. A change of character is the first break against it and warns that control may be shifting.

Does a break of structure need a candle close?

Yes, on the timeframe you are using as your structural reference. A wick beyond the level that closes back inside is closer to a liquidity sweep than a break.

Which timeframe should I use?

Pick one timeframe as your structural reference and stay with it — commonly the 1-hour or 4-hour — then execute on a lower one. Reading structure on several timeframes at once produces contradictions.

Can I enter on the break itself?

You can, but the stop has to go beyond the swing that created the structure, which is usually far away. Most traders wait for the pullback so the invalidation point is closer.

Related terms