▲ BO — Base Breakout: close > prior 20-day high with volume ≥ 1.4× 50-day avg. Signals the stock leaving its base.

● PP — Pocket Pivot: up-day above MA50 whose volume exceeds the highest DOWN-day volume of the prior 10 days. Early institutional accumulation signal.

◆ VR — Volume Rally day: volume > multiplier × 50-day avg and spread ≥ 1.5× avg spread and close in top 30% of the day's range.

▼ HV + ● LV — HV-LV Setup: a rally (HV) day followed by ≥3 tight low-volume (LV) consolidation days. Coiling pattern before a move.

─ Base Resist. — Base Resistance line: the 20-day high that a breakout cleared. Acts as support on pullbacks.

● 3T — 3-Weeks-Tight: the last 3 weekly closes are within 1.5% of each other. A coiled-spring pattern often preceding a breakout.