Mapping ASX opens without inventing overnight noise
Between 10:00 and 11:00 Sydney time, ranges often expand. A wick that looks decisive on a five-minute chart may be irrelevant once the daily candle closes. Size alone is a poor reason to draw a new horizontal.
We prefer to map structure on the daily or four-hour first, then use the open only for timing entries inside that map. If overnight futures printed a spike that never appeared as a daily swing tip, ask whether the cash market ever accepted that price.
In clinic drills we hand out unmarked ASX sequences from quiet and busy opens. Participants who mark every open wick as resistance usually revise half their lines after seeing the next two sessions. That revision habit is the skill — not a perfect first pass.
Keep a session tag in your journal. Levels that form from accepted daily closes behave differently from lines born of a single auction imbalance. Separating those environments reduces the urge to trade every spike as a structural turn.