Lesson 2 ended on a liquidity sweep followed by a reversal candle. This lesson gives that reversal candle a name — order block — and shows you exactly how SMC/ICT teaching turns that one candle into a re-entry zone days or weeks later.

ℹ️ INFO
This lesson picks up directly from [Lesson 2: Liquidity](/learning/courses/smc-ict-fundamentals/lesson-2-liquidity-and-stop-hunts/) — the sweep-and-reversal chart there is the same event this lesson zooms into.

What an Order Block Actually Is

An order block is the last candle in the opposite direction before a strong, structure-breaking move:

  • Bullish order block — the last down-candle before a strong rally. SMC/ICT teaching treats this candle as the assumed origin of institutional buying.
  • Bearish order block — the last up-candle before a strong decline. Same idea, opposite direction.

The rest of the PD Array family builds directly on this definition:

Term Definition
Breaker Block A former order block that failed — price broke back through it, so it's now treated as a level for the opposite direction
Mitigation Block A zone where price returns to partially fill unfilled institutional orders left behind by a fast move
Rejection Block Marked by the wick, not the body — a tighter, wick-based variant of an order block
Propulsion Block A candle that launches price directly into a fair value gap, confirming the gap's significance
Old Order Block Any order block from a prior swing not yet retested — still considered "live" until price returns to it
Supply / Demand Zone A broader, less strict version of the same idea, borrowed from pre-ICT technical analysis
💡 TIP
The fastest way to spot an order block on a real chart: find the strongest, fastest directional move on the screen, then look one candle to the left of where it started. That candle — win or lose — is the order block SMC/ICT content is pointing at.

Trade Walkthrough: Entering on an Order Block Retest

Bullish Order Block Retest (Illustrative Example)

  1. The order block forms — June 9's candle (open 49.0, close 49.1) is the last down-leaning candle before the strong rally into June 12. Its range, roughly 48.6–49.2, is marked as the bullish order block.
  2. Price runs away — the rally continues through June 15, well clear of the order block.
  3. Price returns — after the June 16–17 pullback, price trades back down into the order block zone on June 18 (low 48.7), tagging the same range it launched from three weeks earlier.
  4. Entry — on the June 18 hold and reversal candle closing at 49.3, back above the order block's low, with a stop below the order block's low (48.6) and a target back toward the prior swing high near 51.3.
49.3 (reaction off the order block)
Entry
48.55 (below order block low)
Stop
51.3 (prior swing high)
Target
~1:2.7 in this illustration
Risk:Reward
🚨 DANGER
Order blocks age. The longer a zone goes untested, the more SMC/ICT content itself debates whether it's still "live" — some educators treat any untested block as valid indefinitely, others discount blocks older than a handful of swings. Neither view has a published, verified cutoff. Treat old, untested order blocks with extra skepticism, not extra confidence.

When an Order Block Fails: Breakers and Mitigation

Not every order block holds on the retest. When price closes cleanly through one instead of reacting, two things typically happen:

flowchart TD A([Order block retested]) --> B{Does price hold and reverse?} B -- Yes --> C([Order block confirmed — trade the reaction]) B -- No, price closes through --> D([Order block becomes a Breaker Block]) D --> E([Level now traded for the opposite direction])

A failed bullish order block that price closes straight through doesn't just disappear — it flips into a breaker block, now treated as resistance instead of support. This is one of the more genuinely useful ideas in the PD Array family: it gives you a plan for what a level means after it fails, instead of just discarding it.

Is a rejection block the same thing as an order block?

Close, but stricter. An order block is defined by the full candle (open, high, low, close). A rejection block is defined only by the wick — the part of the candle that shows immediate rejection. In practice, a rejection block is usually a tighter, more conservative entry zone than the full order block range.

What happens if price fills the order block completely and keeps going the wrong way?

That's the breaker scenario above — the order block failed, and by ICT logic it now works as a level for the opposite direction. If you entered on the original retest, this is exactly why the stop belongs below (or above) the block's full range, not inside it.

KEY TAKEAWAY
An order block is just a named candle — the last one before a strong move. What makes it tradable is the retest: price returning to that exact candle's range and reacting. Lesson 4 adds the other half of the picture — the gap that same strong move usually leaves behind, and why price often fills that gap on the way to the order block.