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Asia range width filter before I allow any London scalp

Posted: Thu Sep 17, 2026 12:36 am
by LondonScalper
This is the gate in front of almost everything I do at London.

Before the open I measure Asia high–low on my focus pairs. Too narrow: expect fake breaks and boredom clicks — I cut trade count hard. Mid: normal playbooks allowed. Too wide already: London often digests; I favour pullbacks and reclaims over fresh ORB chasing, or I simply reduce risk.

The filter is pair-specific. What is wide on EURUSD is not wide on GBPUSD or USDJPY. I keep a simple lookback so I am not inventing percentiles with coffee and optimism. The point is not precision theatre; it is stopping the same mistake every time Asia left a clue.

Width also changes which playbook card sits on top of the desk for that morning.
  • Do you quantify Asia width, or is it gut feel?
  • Does the filter change your setup menu or only your size?
This is strategy hygiene more than a signal — and it has mattered.