SPY (daily bars): 20-week, 80-day, 40-day, and 20-day cycles and price projections into a March 17-18 major low around 658 (± 3).
Schematic trajectory (blue summation line) of the final nominal 20-day cycle (average period 14.5 days) into the 20-week cycle trough around late Tuesday, March 17, 2026. Given the downtrend, a March 13 high should be lower than the March 6 high.
