Understanding Order Blocks in SMC

Why Order Blocks Changed My Trading

When I first started trading, I used traditional support and resistance. It worked sometimes, but my entries were imprecise and my stops kept getting hit. Then I discovered Order Blocks — and everything changed.

Order Blocks gave me specific, well-defined zones for entries instead of vague "areas." My stops became tighter, my R:R improved, and most importantly, I understood WHY price reacted at certain levels.

What is an Order Block?

An Order Block (OB) is the last opposing candle before a significant price move (displacement). It represents the zone where institutional traders placed their orders to initiate that move.

Think of it this way:

• Before a big bullish move, institutions need to BUY. The last red candle before that move = where they bought = Bullish Order Block
• Before a big bearish move, institutions need to SELL. The last green candle before that move = where they sold = Bearish Order Block

Bullish Order Block:

         ↑ Strong bullish move (displacement)
         │
         │
    ████ │  ← This red candle = Bullish OB
    ████ │     (Institutions bought here)
         │
    Previous candles

Why Do Order Blocks Work?

The logic is rooted in how institutions trade:

1. Large orders can't fill at once — A bank wanting to buy $500 million of EUR/USD can't do it in one click without massive slippage
2. Initial orders create the OB — They place their first orders, creating the Order Block candle
3. Price moves away — Their initial buying pushes price up
4. Unfilled orders remain — Not all their orders got filled at the OB price
5. Price returns — Eventually, price pulls back to the OB zone where remaining orders wait
6. Orders fill, price bounces — The remaining institutional orders get filled, pushing price again

This is why price "respects" Order Blocks — it's not magic, it's unfilled institutional orders.

How to Identify Valid Order Blocks

Step 1: Look for Displacement

Displacement = strong, impulsive candles with big bodies and small wicks. This shows institutional aggression. Without displacement, there's no valid OB.

Step 2: Find the Last Opposing Candle

Look at the candle(s) immediately before the displacement:

• Before bullish displacement → Last bearish (red) candle = Bullish OB
• Before bearish displacement → Last bullish (green) candle = Bearish OB

Step 3: Check for FVG (Fair Value Gap)

The best Order Blocks are accompanied by an FVG — a 3-candle gap where the wicks don't overlap. This confirms true displacement:

    Candle 3 low ────────
                         │ ← FVG (gap between wick 1 high and wick 3 low)
    Candle 1 high ───────

Step 4: Premium/Discount Context

An OB is only valid if it's in the correct zone:

• Bullish OB should be in discount (below 50% EQ) = BUY zone
• Bearish OB should be in premium (above 50% EQ) = SELL zone

OB Trading Strategy: Step by Step

The Complete Setup:

1. Identify the trend on 4H/Daily (HH/HL or LH/LL)
2. Wait for BOS (Break of Structure confirming trend)
3. Mark the Order Block that caused the BOS
4. Check it's in P&D alignment (discount for bullish, premium for bearish)
5. Wait for price to retrace to the OB zone
6. Enter on a lower TF confirmation (5M/15M CHOCH into the OB)
7. Stop loss: Beyond the OB zone (include a small buffer)
8. Target: Next liquidity pool or opposing POI

Entry Refinement:

Instead of placing a limit order at the OB blindly, refine your entry:

1. Mark the OB zone on 4H/1H
2. When price approaches the OB, drop to 15M or 5M
3. Wait for a lower TF CHOCH/MSS confirming reaction at the OB
4. Enter at the lower TF OB after the CHOCH
5. This gives a MUCH tighter stop loss and better R:R

Real Trade Examples

Trade 1: EUR/USD Bullish OB (4H)

Context: 4H uptrend, price creating HH/HL

1. BOS occurs — price breaks above previous HH
2. The last red candle before BOS at 1.0835-1.0850 = Bullish OB
3. This OB is in discount (below EQ) ✓
4. Price retraces to OB zone
5. 15M shows bullish CHOCH at the OB zone
6. Entry: 1.0842 | Stop: 1.0822 (20 pips) | Target: 1.0920 (78 pips)
7. Result: Hit TP → +78 pips, 3.9R

Trade 2: Gold Bearish OB (1H)

Context: 1H downtrend after BSL sweep at $2,450

1. Bearish MSS confirms shift
2. Last green candle before MSS at $2,438-$2,445 = Bearish OB
3. OB is in premium ✓
4. Price retraces to $2,440 (middle of OB)
5. 5M bearish CHOCH at the OB
6. Entry: $2,441 | Stop: $2,448 | Target: $2,405
7. Result: Hit TP → +36 points, 5.1R

Order Block Invalidation Rules

An OB is invalidated when:

1. Price closes THROUGH the OB with a candle body (not just a wick)
2. The OB has been tested multiple times (1st touch = strongest)
3. Price approaches without any displacement/aggression

When an OB is invalidated:

• It may become a Breaker Block (flips to the opposite direction)
• Don't try to trade an invalidated OB in the original direction
• Look for new OBs formed by the invalidation move

Common OB Mistakes

Key Takeaways

For a complete deep-dive, check the full Order Blocks lesson in our SMC curriculum.

Happy trading! 📊