SPDR S&P 500 ETF (SPY) News Reaction: Broad Market Update June 15, 2026
The Catalyst SPY accelerated to an historic 754.83, registering a highly anomalous +1.76% single-session advance that forcibly recalibrated broad market positioning. This surge was primarily catalyzed by systematic CTA bid execution and severe short-gamma positioning among major options market makers. Rather than a localized momentum squeeze, this represents a massive