A mitigation block is a price zone where a losing institutional position was originally placed — and where price is expected to return so that position can be closed or offset at breakeven. That's the core definition. It's not a continuation zone; it's an exit zone, and treating it like one changes everything about how you trade a revisit to that area.
The confusion with order blocks is understandable. Both are rectangular zones drawn on previous candles. Both involve institutional activity. But the intent behind each is fundamentally different, and intent is what determines whether price is likely to push through the zone or reverse sharply at it.
An order block marks where a large participant — a bank, a fund, a sizable algorithmic system — entered a position that subsequently moved in their favor. When price returns to that zone later, the assumption is that the same participant (or similar ones using the same logic) will add to or defend the position, creating another push in the original direction.
This is why order blocks are treated as high-probability reversal zones. The money behind them is still working. The position is still live and profitable enough to defend. When price sweeps back into a valid order block and rejects, you're watching active institutional defense.
The key qualifier is that the original move away from the zone must have been impulsive — a clean, strong displacement that left an imbalance or fair value gap in its wake. A slow, grinding departure weakens the argument that a genuine institutional entry occurred there.
A mitigation block forms under a different circumstance. Here, the institution entered a position that went against them — price moved the wrong way. Now they're sitting on a losing trade. When price eventually reverses back toward their entry, they don't add. They get out. They mitigate the loss by closing the position near breakeven, or by hedging it with an offsetting order.
That offloading creates selling pressure in what was a long zone, or buying pressure in what was a short zone — whichever direction reduces their exposure. Once the mitigation is complete and the institutional position is closed, there's no longer a reason for price to respect that zone on a subsequent visit. The orders that gave it relevance are gone.
This is the critical distinction: an order block has staying power because the position behind it is still active; a mitigation block is used up once price has returned and the losing side has exited.
You can't know with certainty what a large participant did at any given zone — you're reading the footprint, not the order book. But there are structural clues that tilt the probability one way or the other.
That last point matters. If price has already returned to a zone and cut through it without meaningful reaction, the mitigation likely already occurred. Drawing it again and expecting a reversal is wishful reading.
If you're trading order blocks as reversal or continuation entries, mistaking a mitigation block for one is a reliable way to buy into selling pressure or short into buying pressure. You're fading the institution's exit rather than aligning with their entry.
In practice, this means doing a quick audit before treating any zone as an order block candidate:
A zone that fails these checks is better classified as a mitigation block — a place where you watch for continued movement through the area, not a reversal from it. Sometimes the cleanest read is that there's simply no valid setup at that level anymore.
A lot of price action frameworks talk about zones in terms of supply and demand without distinguishing between zones that are still active and zones that have been neutralized. The mitigation block concept forces you to ask whether the institutional logic behind a zone still applies — or whether the original position has already been resolved.
That question alone filters out a meaningful portion of low-quality setups. A zone on a chart is just a rectangle until you think through what the participant who created it is likely doing now. If they're already out, the zone is historical, not active.
Million Candles' structure detection flags order block candidates based on impulsive displacement and imbalance presence — part of what that process does implicitly is deprioritize zones that have already been fully revisited, since a mitigated zone carries far less structural weight. As with any technical framework, this is an educational model for reading price behavior, not a guaranteed signal or financial advice. Context, confluence, and your own risk management always come first.