Stop hunts or spread: separating two explanations
Posted: Sat Oct 31, 2026 4:10 am
Suspicion of stop hunting is widespread. The price touches the stop level exactly, then reverses. It feels deliberate.
Sometimes it is. More often, simpler causes explain the pattern. First, the bid and ask difference: a stop on a short position is triggered by the ask, and a bid chart won't show it. Second, a temporary spread widening: the quote moves because the spread expanded, not because the market traded there. Third, normal volatility: a level that attracts stops also attracts price, since it's where liquidity sits.
A cleaner way to judge is to examine tick data for the moment of the stop-out. Was there a real trade at that price? Did the bid and ask both move, or just the ask? Did other brokers' feeds show the same spike?
A comparison with a second broker's chart, or with a public feed, resolves a lot of doubts. If the spike appears only in one feed, it came from that broker's pricing. If it appears everywhere, it was the market.
There are cases of broker manipulation, and they have led to regulatory actions. But assuming it every time prevents learning from the real mechanics.
A practical comparison method: keep a second platform or a data feed from another source running on the same pair. After a suspicious stop-out, check what the other feed showed at that second.
If the other feed shows the same price excursion, the market did it, and the stop was hit legitimately. If only the broker's feed shows the spike, something specific to that feed produced it. That might be a pricing glitch, a spread widening or, in rare and serious cases, a deliberate distortion.
Free sources exist, for example other brokers' demo accounts, which cost nothing to open and provide a quote stream. The comparison isn't perfect, since each demo feed has its own aggregation, but a spike that appears on one feed alone is a red flag.
Keeping a record of such incidents, with timestamps and screenshots, builds a case if a complaint is needed. A single event proves little, while a repeated pattern at the same time of day is hard to dismiss.
Which tool or comparison has been most useful in telling a market move from a pricing artifact?
Sometimes it is. More often, simpler causes explain the pattern. First, the bid and ask difference: a stop on a short position is triggered by the ask, and a bid chart won't show it. Second, a temporary spread widening: the quote moves because the spread expanded, not because the market traded there. Third, normal volatility: a level that attracts stops also attracts price, since it's where liquidity sits.
A cleaner way to judge is to examine tick data for the moment of the stop-out. Was there a real trade at that price? Did the bid and ask both move, or just the ask? Did other brokers' feeds show the same spike?
A comparison with a second broker's chart, or with a public feed, resolves a lot of doubts. If the spike appears only in one feed, it came from that broker's pricing. If it appears everywhere, it was the market.
There are cases of broker manipulation, and they have led to regulatory actions. But assuming it every time prevents learning from the real mechanics.
A practical comparison method: keep a second platform or a data feed from another source running on the same pair. After a suspicious stop-out, check what the other feed showed at that second.
If the other feed shows the same price excursion, the market did it, and the stop was hit legitimately. If only the broker's feed shows the spike, something specific to that feed produced it. That might be a pricing glitch, a spread widening or, in rare and serious cases, a deliberate distortion.
Free sources exist, for example other brokers' demo accounts, which cost nothing to open and provide a quote stream. The comparison isn't perfect, since each demo feed has its own aggregation, but a spike that appears on one feed alone is a red flag.
Keeping a record of such incidents, with timestamps and screenshots, builds a case if a complaint is needed. A single event proves little, while a repeated pattern at the same time of day is hard to dismiss.
Which tool or comparison has been most useful in telling a market move from a pricing artifact?