Stop clusters at the previous day's high and low
Posted: Sat Oct 31, 2026 6:56 pm
The high and low of the previous day are among the most watched levels. Many traders place stops beyond them, and breakout traders place entry orders at them. That concentration of orders makes the levels magnets.
When price approaches, it often accelerates as stops trigger, and then either continues if there is follow-through or snaps back when the stops are exhausted. The pattern appears frequently in the first hours of the London session, when the market reacts to the Asian range and the previous day's extremes.
For scalpers, the level is a double-edged tool. Trades near it can profit from the burst, but they also face the risk of false breaks.
The edge depends on measuring behavior. How often does price sweep the level and reverse within a few minutes? How often does it continue? The answers vary by pair, session, and recent volatility.
Pairing the level with other conditions, such as spread behavior and tick rate, can improve discrimination.
Statistics from several months of tick data give a base rate against which to judge setups.
What fraction of tests of the previous day's extreme result in a sweep and reversal on the pair being traded?
When price approaches, it often accelerates as stops trigger, and then either continues if there is follow-through or snaps back when the stops are exhausted. The pattern appears frequently in the first hours of the London session, when the market reacts to the Asian range and the previous day's extremes.
For scalpers, the level is a double-edged tool. Trades near it can profit from the burst, but they also face the risk of false breaks.
The edge depends on measuring behavior. How often does price sweep the level and reverse within a few minutes? How often does it continue? The answers vary by pair, session, and recent volatility.
Pairing the level with other conditions, such as spread behavior and tick rate, can improve discrimination.
Statistics from several months of tick data give a base rate against which to judge setups.
What fraction of tests of the previous day's extreme result in a sweep and reversal on the pair being traded?