Breaker Block vs Mitigation Block
Breaker blocks are areas price broke through before returning from the other side, so they can be marked the moment the break closes. Mitigation blocks are areas price came back to, reacted from and then left in the original direction, so the label only exists after all of that has happened.
A breaker block and a mitigation block can sit on exactly the same candle. What separates them is when each name becomes available: the breaker on the day structure breaks, the mitigation block only after price has come back, reacted and moved on. That timing gap can be counted.
What each one is
A breaker block is an area a structural break leaves behind. Price breaks a swing level, and the last candle against the move before the break becomes an area that price may later revisit from the other side. Breaker block covers the candle rule.
A mitigation block is an area defined by what happened next. This site’s mitigation block page describes the shape: a move, a return to an area, a reaction there, and a continuation in the original direction.
So the first is a forecast of a place rather than a record, while the second is a record of a move. The breaker is marked before anything is known about the return; the mitigation block is marked once the return is history.
Where they differ
When you can draw it. A breaker is drawable at the close of the break session, whereas a mitigation block needs three further things to have happened, and the last of them, the continuation, can take weeks.
Whether a break is required. The breaker cannot exist without a swing level giving way, while the mitigation shape needs no structural event at all, so many more areas qualify for it than for the breaker.
What can be tested. Because a breaker is fixed in advance, its returns can be counted honestly, including the ones that failed. A mitigation block has no failures by construction: an area that did not produce a reaction and a continuation never receives the name.
Which direction the return is traded. Both are traded in the direction of the move that preceded the return. In an uptrend the area below price is bought on the way back down under either name; the difference is the story told about who is acting there, not the side of the trade.
When the same candle gets both names
Most often after a clean return. When a breaker’s return session closes back on the break side and price then makes a new close beyond the break day, that candle satisfies the breaker rule and the mitigation shape at once.
On SPY that happened 81 times. Of the 101 breaker returns that closed back on the break side, 81 were followed within 20 sessions by a close beyond the break-day close: 57 after upward breaks and 24 after downward ones. Another 68 returns that closed inside the area later continued too, but a return that stalls inside is not the clean reaction the mitigation definition describes, so they are not counted.
The overlap tells you the vocabulary is not two setups. One candle, one trade direction, two names, and the second name is only ever handed out to the winners.
Which one to use: Breaker Block or Mitigation Block?
Use the breaker when you need a place marked before the return. Of the two, it alone exists while the trade decision is still open, and that is when a decision has to be made.
Use the mitigation label when you are reviewing instead of trading. It is a fair description of how a move unfolded, and it is useful for sorting old charts as long as nobody counts it as a hit rate.
Use the breaker’s rule when you want to count your own record. An area fixed in advance keeps its failures in the sample, while a label applied afterwards quietly drops them.
And when someone calls a level a mitigation block before price has moved on, ask which rule they mean. Under this site’s definition the name is not yet earned.
A candle that earned both names: SPY, November 2023
The break. On 10 November 2023 SPY closed at $440.61, above the $438.14 swing high of 17 October, an upward break of structure. The last down candle before it was 9 November: open $438.43, close $433.84, range $433.40 to $438.47. The break close sat above that whole range, so a breaker could be drawn that evening.
The return. On 13 November the low dipped to $438.42, five cents inside the area, and the session closed at $440.19, back above its top. By the breaker rule the return held on the break side.
The continuation. On 14 November SPY closed at $448.73, above the break-day close. Only then did the 9 November candle fit the mitigation shape: two sessions after the breaker could first be drawn, and only because the rise happened to carry on.
The original data
The sample. Daily SPY prices from Yahoo Finance running 29 January 1993 through 2 October 2026. Structure breaks count only from 2 January 1996, because in SPY’s first years the recorded open was often a copy of the previous close. Swing levels and breakers come from the table behind this site’s other breaker pages: a swing high or low needs five bars either side of it, a close past it is a break, and the breaker is the most recent candle of the opposite color before that break, kept only when the break close cleared all of it.
The mitigation test. A breaker also fits the mitigation shape here when the first return to it within 20 sessions closed back on the break side, and a later close within 20 sessions of that return went beyond the break-day close in the break direction. Of 101 such returns, 81 (80.20%) did, which is 22.19% of all breakers.
The delay. From the break to the continuation close took a median of 7 sessions, from 2 to 28; the continuation came within 5 sessions of the break 37 times, in 6 to 10 sessions 20 times, in 11 to 15 sessions 11 times and in 16 to 28 sessions 13 times. From the return itself it took a median of 2 sessions. Every breaker, its return and the continuation date are in the SPY breaker comparison file.
What the numbers do not say. They do not say a breaker works 22% of the time. The 81 are a count of candles that ended up with two names, and the mitigation name exists only for the ones where the move continued.
When it fails
The failure is drawing mitigation blocks on the live chart and then counting only the ones that earned the name. An area is marked because price came back to it. When price continues, the mark stays and becomes a mitigation block. When it does not, the mark is erased or relabelled, and the record shows only reactions that worked. On SPY the breakers whose return did not close back on the break side outnumbered those that did, and none of them would ever appear in a mitigation tally.
The second failure is treating the two names as two confirmations. They describe one candle.
A third is trading the mitigation label before it exists. Until the continuation prints, it is a breaker or a guess.
A fourth is forgetting the delay. A median of 7 sessions passed before the second name was available, which is after most of the move it describes.
And a fifth is using either without an expiry. This page gives each area 20 sessions.
Related
Breaker block sets out the candle rule used for every count above. Mitigation block explains why that label is drawn in hindsight. And break of structure defines the swing break the breaker depends on.
Write down which label you mean before price comes back, not after. A mitigation block is a description of a finished move, so it cannot tell you what an unfinished one will do.
— Michael Whitman
This page is educational, not financial advice. Test every idea on your own charts before risking money.