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Order Block

OVERVIEW

An order block (OB) is the last opposing-color candle before a high-momentum price move that breaks market structure. In a bullish order block, it is the last bearish (red) candle before a sharp rally; in a bearish order block, it is the last bullish (green) candle before a sharp decline. The concept comes from Smart Money Concepts (SMC) and ICT methodology, where the zone is treated as a footprint of institutional accumulation or distribution. Order blocks act as high-probability support and resistance zones that price returns to before continuing the trend.

Order Block Type Trigger Candle Market Condition
Bullish OB Last bearish (red) candle Precedes a sharp rally
Bearish OB Last bullish (green) candle Precedes a sharp decline

HOW TO USE

Identifying a Valid Order Block

Three conditions define a valid order block:

  1. A clear directional move. The candle following the OB must produce strong displacement — at least 2-3 times the average true range — and break a prior swing high or low (a break of structure).
  2. The OB is the last opposing candle. For a bullish OB, locate the last red candle immediately before the rally. For a bearish OB, locate the last green candle before the drop.
  3. The zone is the body or full range of that candle. Most traders use the candle's body (open to close) as the OB zone; conservative traders use the full high-to-low range.

There is no numerical formula — order blocks are identified visually. The strength of the OB is graded by (a) the size of the displacement that followed it, (b) whether it sits at a confluence with a higher-timeframe level, and (c) whether it created an unfilled fair value gap on the way out.

Note

Order blocks are identified visually. There is no universal algorithmic definition agreed upon by all SMC practitioners.

Trade Workflow

Traders use order blocks as entry zones for trend-continuation trades. The workflow: identify a higher-timeframe trend, wait for a BOS, mark the order block that triggered the BOS, then enter on the next pullback that tests the OB. Stops go just beyond the far side of the OB candle, providing tight risk relative to the directional move. Order blocks are also used as targets when price is moving toward an unmitigated OB from a higher timeframe — those zones reportedly hold institutional resting orders.

FEATURES

Worked Example — AAPL Bullish Order Block

On April 28, 2026, AAPL was consolidating around $214. At 10:30 AM ET on the 15-minute chart, a red candle printed with an open of $213.85 and close of $213.20. The next candle exploded higher, closing at $215.90 on 4× average volume after a positive services-revenue leak. Subsequent candles extended to $218.40, breaking the prior swing high of $216.10 and confirming a BOS.

Event Detail
OB candle time 10:30 AM ET
OB candle range $213.20 (close) – $213.85 (open)
Displacement candle close $215.90 on 4× average volume
Prior swing high broken $216.10 — confirmed BOS
Pullback date Two days later, price tagged $213.40
Resulting rally target $221 over the following week

The 10:30 AM red candle ($213.20–$213.85) is the bullish order block. Two days later, AAPL pulled back to $213.40, tagged the OB, and rallied to $221 over the following week.

LIMITATIONS

Common Misconceptions

  • Subjectivity — two traders examining the same chart frequently mark different candles as the OB.
  • Failure rate — an OB at a chart edge with no higher-timeframe confluence carries roughly coin-flip odds of holding.
  • Not all pullbacks are OBs — without confirmed displacement and a BOS, the candle is not a valid order block.
  • Institutional narrative — the claim that hedge funds store literal resting orders at OB zones is unverifiable. OBs work because enough traders watch them, creating self-fulfilling reaction zones.
Risk Factor Description
No confluence Low-probability setup without higher-timeframe alignment
No BOS confirmation Pullback level only; does not qualify as an order block
Mitigated OB Zone already tested and traded through; no longer valid