According to The Kobeissi Letter, the S&P 500 experienced an abrupt 50-point drop within the final 10 minutes of trading, despite lacking any major news catalyst during that period. Notably, Amazon ($AMZN) shares fell over 6% shortly after, following a report of weaker-than-expected Q2 operating income. This sharp late-session volatility signals heightened risk for day traders and algorithmic trading strategies, as rapid, unexplained swings can trigger stop-losses and increase short-term market uncertainty. Traders should closely monitor after-hours earnings releases and institutional order flows for potential spillover effects in futures and correlated tech stocks (Source: The Kobeissi Letter on Twitter, May 1, 2025).