Opex week · NQ · 2016–2026 · 7,748 sessions
In Opex week, every session tightens — except London.
−14%
that's how much Asia's range shrinks in Opex week (NY tightens too, −6%). But London barely moves — the only session that keeps its normal range.
Range in Opex week vs the rest of the month
Below the dotted line = tighter range than a normal week
−14%
−1%
−6%
AsiaLondonNY AM
Every session tightens in Opex week — except London, which trades its normal range.
London
Stays alive
range ≈ flat (−1%)
Asia
Goes quiet
−14% range
NY AM
A bit quieter
−6% range
How to use it
If you trade Opex week, London is where the range survives. Asia goes quiet and NY is a touch tighter — don't expect big overnight moves outside the London session.
Not advice · AI-backtested on 10y NQ · check it yourself