Reference:
See also:
Alternate composite, different nest: 18-month / short 40-week into Oct 5 (Mon) 2026, no
mid-October 40-week crest. Key dates: Next crest August 28 7,771.4 (40-day / 80-day / 20-
week already in), working 20-day bounce September 18 · ~7,710, then October 5 trough
~7,000. If October is a deep break instead of a moderate 80-day, this is the path.
Claudio Fialdini applies the Delta Phenomenon's super-long-term 19-year (228-month) and long-term cycles to the S&P 500, proposing 14 alternating waves of tops and bottoms culminating in a major peak and deep crash. Anchored to the Metonic cycle, historical turning points include 1929, 1947, 1966, 1987, and 2007, with Wave 14 projecting a terminal peak in 2026. Waves 1–13 comprise the secular advance; Wave 14 marks the final crest before liquidation. The green baseline traces cycle support through the 2009 GFC (Wave 1), 2011 (Wave 3), 2015–16 (Wave 5), and 2020 COVID (Wave 7) lows, followed by a projected decline toward the multi-decade trendline.