A sharp VIX spike followed by a reversal has historically favored SPY over the following weeks when VIX was at or below 25. After a 21% spike Friday and a 7% fall today, SPY's one-week return averaged 1.10% in 14 comparable events over the past decade, with gains in 12; the next-day average was just 0.07%. Could this have been capitulation? x.com x.comÂ