5% Canary (per Thrasher)

Implements Thrasher’s framework using closing prices and simple, non-optimized thresholds. The study watches for the first 5% decline from the latest 52-week closing high and classifies it:
• 5% Canary: drop occurs in ≤ 15 trading days.
• Confirmed 5% Canary: within 42 trading days of a Canary, there are two consecutive closes below the 200-DMA.
• Buy-the-Dip: the first 5% decline takes > 15 days and 50-DMA > 200-DMA (uptrend).

Includes optional 50/200-DMA plots, clutter-reduction, and alert conditions. This is a signal framework, not a standalone system—pair with your own risk management.