Order blocks, defined mechanically

What it actually is

An order block is the last candle, or short run of candles, moving against the direction price is about to take before it displaces away. Nothing more mystical than that. Price grinds down, prints one more red candle, then expands up and never trades back through that level the same way. That red candle is the order block.

I don't look for shape. I don't care if it's a doji or a big-bodied candle or three small ones in a row. The only thing that qualifies a candle as an order block is what happens after it — displacement away, leaving a gap in price that hasn't been revisited yet. No displacement, no order block. It's just a candle.

Why it works

Every candle is a record of orders filled. The last opposing candle before a move away is where the losing side got trapped — longs bought into a top that immediately reversed, or shorts sold into a bottom that immediately expanded. Those positions don't vanish. They sit underwater, waiting for price to come back to breakeven, and the traders who missed the original move are waiting at the same level for a better entry.

Both crowds create the same thing: resting orders stacked at that price. When price returns to it, that supply of orders is what fills the next leg. I'm not trading a magic zone. I'm trading a level where I know orders are sitting because of how the candle got left behind.

Picking the valid one

Most charts have a dozen candles that technically fit "last opposing candle before a move." Only one matters at a time: the one that produced the break of structure, or closed with enough force to flip bias — what I call CISD, close in the direction of displacement. If a candle didn't cause structure to break, it's noise. I skip it.

Practically that means I mark structure first — the swing high or low that had to give for the move to count — and then walk back to the candle immediately before the break. That's my order block. Everything printed earlier in the same leg gets ignored, even if it looks identical on the chart. Only the one tied to the break has orders that matter to the current leg.

Entry and invalidation

I wait for price to trade back into that candle's range. I'm not entering off a first touch from a distance — I want price actually inside the block, then reacting the direction the displacement already told me it wants to go. On NQ that might mean waiting for price to tap back into a block left on the five-minute chart after an impulsive move through the New York open, then confirming with a smaller CISD on a lower timeframe before I'm in.

Invalidation is a close through the block, not a wick through it. Wicks are noise — the market testing the level and getting rejected. A close through it means the orders that were supposed to hold the level got run over, and the level is done. I'm out, or I never got in. No averaging into a level that already failed to hold.

Order blocks give me a place to wait instead of chase. The alternative is entering the middle of an expansion, hoping it continues, with no defined invalidation — a guess dressed up as a trade. An order block is a rule: this candle, this range, this close-through condition. If price doesn't come back to it, I don't have a trade, and that's fine. Boring is the goal. I'd rather sit out a session than force an entry into a level I can't define mechanically.