Technical Analysis · Intermediate · 5 min
Liquidity grabs and stop hunts
You can explain why stop orders cluster beyond obvious highs and lows, recognize a quick sweep and reversal, and place your own stops with that in mind.
Hunted?
Your stop is hit by a few cents. Seconds later, the price turns and moves exactly the way you expected. It feels as if someone saw your stop and went for it.
Many traders have this experience, and online it has a name: the stop hunt. There is a real mechanism behind it, and it is much less personal than it feels.
Stops sit in clusters
Stops are not spread evenly across the chart. Traders tend to place them at the same obvious places:
- just above a high, for short positions,
- just below a low, for long positions,
- just beyond round numbers.
When several highs line up at almost the same price, they form equal highs. Equal highs and equal lows are among the most obvious places of all, and many stops gather just beyond them.
This is supported by research. Carol Osler, studying actual orders placed with a bank in currency markets, found that stop-loss orders cluster strongly just beyond round numbers, and that their execution could explain why prices often move rapidly after crossing such levels.
When the price reaches a cluster of buy stops above equal highs, the stops are triggered and become market orders, as the SEC's bulletin on stop orders explains. That buying pushes the price higher for a moment. If no new buyers follow, the spike fades, and the price falls back below the level. Online trading education calls this a liquidity grab, a sweep or a stop hunt.
What the research does not show is a hunter. Large traders may well use the liquidity that stops provide, because a cluster of orders makes it easier to fill a large position. But most sweeps are the ordinary result of many orders sitting in one place, not a plan aimed at your account.
Spike, then reversal
In the fictional chart, three rallies stop at almost the same price: 45.13 on candle 5, 45.12 on candle 11 and 45.13 on candle 17. Those are equal highs.
- Candle 21 spikes to 45.38, about 0.25 above them.
- It closes at 45.05, back below the highs.
- Over the next seven candles, the price falls to 42.94.
A trader short from 44.90 with a stop at 45.15, just above the highs, was stopped out at the top of the spike. A trader with the stop at 45.50, with a smaller position for the same risk, kept the trade. The second trader did not know what would happen. They simply avoided the most crowded place on the chart.
Common mistakes
- Stops one cent beyond the obvious high. That is where the cluster sits.
- Taking it personally. Sweeps are order flow, not a plot.
- Calling every spike a grab. Many breaks continue; only the reversal makes it a grab.
- Chasing the reversal without a stop. The sweep's extreme is where the idea fails.
The takeaway
Stops cluster just beyond obvious highs and lows. A quick move through them that reverses is called a liquidity grab. It's order flow, not a conspiracy.
Check yourself
Quick quiz
4 questions. Instant feedback, nothing is saved.
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1Tap the candle that swept above the equal highs and closed back below.
Tap the chart.
Candle 21 reached 45.38, about 0.25 above the equal highs, and closed at 45.05. Stops above the highs were likely triggered, but no further buying followed.
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2Why do stop orders cluster just beyond obvious highs and lows?
Osler's study of currency orders found stop-loss orders clustering strongly just beyond round numbers and similar levels.
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3What happens when a cluster of buy stops above a high is triggered?
Triggered stops add buying pressure. If no new buyers follow, the spike can fade quickly, which is what a liquidity grab describes.
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4What is a sensible lesson for your own stop placement?
A stop just beyond an obvious level sits in the crowd. A little more room, with a smaller position, keeps the risk the same.
of 4 correct.