Every trade below is synthetic and scripted, not observed. One account, tagged as the igniter, places a tight burst of aggressive trades; a set of unrelated follower accounts join the direction shortly after; the price gives most of the move back once the igniter stops. Account tags are constructed labels, not real market participants.
Companion to: Spoofing and layering simulation and Wash trading simulation
Keep an eye on the banner below as you scrub or play. It is where the pattern gets flagged, in three stages.