Why the spread goes crazy at the 5pm New York rollover
Posted: Sat Oct 31, 2026 11:06 am
The rollover window is the one stretch of the day where the spread on a major can go from a fraction of a pip to several pips, and then snap back, all without the market actually doing anything.
It happens because the day is changing hands. Liquidity providers around the world reset books, swap rates get applied, and a large share of the usual quoting stops for a short stretch. What is left is a thin set of prices with a wide gap between them. The chart barely moves, but the cost of getting in has changed completely.
The part that catches scalpers is the stop side. A short with a stop above the market is closed at the ask, so when the spread balloons for a few seconds the ask can touch the stop level while the bid, which is what the chart plots, never gets near it. The platform shows a stop-out on a candle that looks perfectly calm. Plenty of people read that as a hunt when it is just arithmetic.
Another detail is that the widening is not always symmetrical in time. Some feeds widen a few seconds before the clock hits the hour, others a few seconds after, and recovery can take a minute or several depending on the pair and the broker. Pairs with thinner books, like the crosses and anything with NZD or CAD, tend to stay ugly longer than EUR/USD.
A tight stop sitting through rollover is really a bet on the spread behaving. A tight stop and a wide window do not mix, and neither do market orders sent into the middle of it.
How long does the spread take to settle back to normal on the pairs you trade after the rollover, and does it differ much between brokers you have used?
It happens because the day is changing hands. Liquidity providers around the world reset books, swap rates get applied, and a large share of the usual quoting stops for a short stretch. What is left is a thin set of prices with a wide gap between them. The chart barely moves, but the cost of getting in has changed completely.
The part that catches scalpers is the stop side. A short with a stop above the market is closed at the ask, so when the spread balloons for a few seconds the ask can touch the stop level while the bid, which is what the chart plots, never gets near it. The platform shows a stop-out on a candle that looks perfectly calm. Plenty of people read that as a hunt when it is just arithmetic.
Another detail is that the widening is not always symmetrical in time. Some feeds widen a few seconds before the clock hits the hour, others a few seconds after, and recovery can take a minute or several depending on the pair and the broker. Pairs with thinner books, like the crosses and anything with NZD or CAD, tend to stay ugly longer than EUR/USD.
A tight stop sitting through rollover is really a bet on the spread behaving. A tight stop and a wide window do not mix, and neither do market orders sent into the middle of it.
How long does the spread take to settle back to normal on the pairs you trade after the rollover, and does it differ much between brokers you have used?