The historical sessions whose 5m chart looks most like COIN today's, matched over the same window and rated 0–100 for closeness. Matches on the candles + wicks, weights the open and today's swing points, penalizes a very different-sized day, and searches acrossthe whole liquid universe — index & sector ETFs, mega-caps, FX majors, and crypto (each matched over the same US-hours window). Pure visual similarity — no prediction. Updates live as the day prints.