Statistically unusual price, gap and volume bars

An anomaly gate. A robust median + MAD reading — how far a bar sits from AAPL's own typical move, measured against its median so one outlier cannot mask the next — flag only the bars that are unusual for this name: price spikes, overnight gaps and volume surges past the |z| > 3 threshold, measured against an EWMA expected daily move (the recent average move, weighted toward the latest sessions), with a note on what each flag means. The scan runs on real price history only.