Quick answer
A breaker block is an order block that price closed through and then reclaimed, flipping it from support to resistance or the other way round. It forms when the last opposing candle before a move fails to hold, the market displaces past it, and price later retests it from the new side. Breaker blocks are traded as reversal retests after a liquidity sweep and a market structure shift — not as standalone levels.
What is a breaker block?
Start with the order block: the last opposing candle before an impulsive move. Normally price returns to it and continues in the direction of the impulse. Sometimes it does not — price closes clean through the block and displaces in the opposite direction. That violated block is now a breaker.
The logic is the same one that makes an inverse fair value gap work. A level that fails tells you which side lost control. Orders that were defending the old direction are now underwater, and the retest of that level is where they get closed out — which is exactly why price tends to reject from it sharply.
Bullish vs bearish breaker block
| Bullish breaker | Bearish breaker | |
|---|---|---|
| Starts as | A bearish order block above price | A bullish order block below price |
| What fails | Price closes up through the bearish block | Price closes down through the bullish block |
| Where it forms | After a low is swept and the market shifts up | After a high is swept and the market shifts down |
| New role | Support on the retest | Resistance on the retest |
| Entry | Limit at the top edge of the reclaimed block | Limit at the bottom edge of the reclaimed block |
| Stop | Below the block, or below the swept low | Above the block, or above the swept high |
| First target | The high the sweep came from | The low the sweep came from |
| Invalidation | A body close back below the block | A body close back above the block |
How to qualify a breaker block
Most losing breaker trades are levels that never earned the name. Four conditions have to be present:
- An obvious level was swept. The move that broke the block should have started from a liquidity sweep of the previous day high or low, the session extreme, or equal highs and lows.
- The block was genuinely violated. A body close through it, not a wick. A wick through a block leaves it an order block.
- The violation displaced. The leg through the block should break structure and leave a fair value gap behind. No displacement means no conviction and no breaker.
- Structure has shifted. Confirm with a market structure shift before treating the retest as a reversal entry.
Trading a breaker block on NQ, step by step
- Before the open, mark the previous day high and low and the overnight range.
- In the New York AM Killzone, wait for one of those levels to be swept.
- Find the order block that produced the swept extreme — the last opposing candle before that push.
- Wait for price to close back through that block on the 5-minute. It is now a breaker.
- Drop to the 1-minute and set a limit at the edge of the reclaimed block. Stop past the swept extreme.
- First target the opposite side of the session range; trail the rest against 1-minute structure.
If the breaker is retested and price closes back through it again, the reversal has failed — take the loss rather than adding to it. Repeated violations of the same level usually mean the session is ranging, not reversing.
Breaker block vs order block vs mitigation block
| Order block | Breaker block | Mitigation block | |
|---|---|---|---|
| State | Never violated | Violated, then reclaimed | Origin of a failed position |
| Direction traded | With the original impulse | Against the original impulse | Back toward break-even |
| Needs a sweep first | Helpful | Effectively required | Helpful |
| Confirmation | Displacement plus an FVG | Body close back through the block | A clear failed leg before it |
| Reliability driver | Clean displacement | Sweep quality and the shift | How obvious the trapped leg was |
Guides: order block and mitigation block.
Breaker block and the Unicorn Model
When the fair value gap left by the displacement leg overlaps the breaker block itself, the two levels stack into what ICT calls the Unicorn Model — the highest-confluence version of this entry. The full sequence is covered in the ICT Unicorn strategy guide.
Practise breaker blocks
Breakers are easy to see in hindsight and hard to trust live, which makes them a replay problem rather than a reading problem. Step through Killzone sessions in NQ Replay, mark every order block that gets closed through, and log whether the retest held. After twenty sessions the difference between a violated block worth trading and one worth ignoring reads instantly.
Frequently asked questions
What is a breaker block in trading?
A breaker block is an order block that price closed through and then reclaimed from the other side. The failure flips its role, so a bearish block that gets broken upward becomes support on the retest.
What is the difference between a breaker block and an order block?
An order block has never been violated and is traded in the direction of the original impulse. A breaker block has been closed through and is traded against that original direction, as a reversal retest.
How do I identify a bullish breaker block?
Find the bearish order block that produced a high, wait for price to sweep a low and then close back up through that block with displacement, and treat the reclaimed block as support on the retest.
Is a breaker block the same as a mitigation block?
No. A breaker block is a violated and reclaimed order block traded as a reversal. A mitigation block marks where an institutional position went underwater, and price returning to it is about getting back to break-even before continuing.
What timeframe should I use for breaker blocks?
Mark the block and confirm the violation on the 5-minute with 4-hour or daily bias behind it, then refine the entry on the 1-minute. Breakers marked purely on very low timeframes generate far more failed retests.
Can I backtest breaker blocks for free?
Yes — the free plan steps through recent 1-minute NQ sessions bar by bar with FVGs, Killzones and previous day levels drawn automatically, so you can mark broken order blocks and check the retests. Pro from $5/month opens the full multi-year archive.
Related concepts
- Market Structure
Swing highs and lows, trend states, and how BoS and MSS read inside them.
- Break of Structure (BoS)
The continuation signal — a close through the prior swing in trend.
- Market Structure Shift (MSS)
The reversal confirmation that follows a clean liquidity sweep.
- Order Block
The last opposing candle before a strong impulse — a reversal zone.