Liquidity and stop runs

Your stop sits 2 pips under a clean double bottom. Price dips 7 pips under it, takes the stop, then rallies 60 pips. It feels personal. It is more useful to understand why so many stops were sitting in the same place.

Equal highs and the orders above them

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Illustrative EUR/USD H1: two equal highs, the orders likely resting above them, and a sweep.

In the glossary, liquidity means how easily you can trade without moving the price. Market-structure traders use the word more narrowly: liquidity is a cluster of orders resting at a known price. Above an obvious high sit buy orders (stops on short trades, buy-stop entries); traders call it buy-side liquidity. Below an obvious low sit sell orders, called sell-side liquidity.

Clusters form wherever many people make the same choice: above equal highs and below equal lows, beyond round numbers like 1.0900, and just past the last swing point.

What a sweep is

A sweep (also called a stop run or liquidity grab) is a move through one of those clusters that fails to hold: a wick beyond the level and a close back inside. When price reaches the cluster, the stops become market orders and add a burst of buying or selling. If nothing else keeps pushing, price falls back.

Nothing here requires someone to hunt your stop. The foreign exchange market traded about $9.6 trillion a day in April 2025 (BIS Triennial Survey), and your stop is one of thousands at the same obvious price. A sweep is also a label applied after the close; while the wick is forming, you cannot tell it from the start of a real breakout.

A wider stop with a smaller size is not more risky. It costs some reward-to-risk on the same target, which you can check with the reward-to-risk lesson.

Try it

Price has topped twice near 1.0880. Where are stops on short trades most likely clustered?

Tap on the chart where you would draw the level.

This time the push above the highs reversed. Test the same idea on real charts and you will find plenty that kept going.

Tap just beyond the obvious highs rather than on them: the orders sit where the short sellers’ idea is proven wrong.

Quick check

Quick check

1. Question 1 of 4

   In market-structure talk, where is buy-side liquidity?

   AAbove obvious highs, where short sellers' stops and breakout buy-stops sitBBelow obvious lowsCAt the current price

Go deeper: Where to Place a Stop Loss: A Practical Guide · Breakout Trading in Forex: How to Avoid Fakeouts · Support and Resistance in Forex: Find and Trade Key Levels