Opinion: Single-Day Plunge Has Never Defeated the S&P 500, Bullish on Monday's Opening for a Rebound

June 7: Bull Theory’s latest market analysis notes the roughly 2.6% S&P 500 drop last Friday has stoked market jitters—but when viewed against a 75-year historical backdrop, that fluctuation doesn’t even rank in the top 200 largest single-day declines. Since 1949, the S&P 500 has weathered numerous true market crashes: Black Monday 1987’s 20.47% single-day plunge, the 2020 COVID-19 collapse’s 11.98% drop, and the 2008 financial crisis’s 9.03% slide. Yet after every major downturn, the index has marched to new all-time highs, surging from just a handful of points to over 5,500 today. Last Friday’s pullback is merely a normal "breather" in this bull market—healthy consolidation of gains, not a trend reversal. Throughout its history, the S&P 500 has survived the dot-com bubble burst, the 1998 Long-Term Capital Management collapse, debt ceiling showdowns, Trump-era tariff threats, and other shocks—its long-term upward trajectory has never been derailed by a single-day crash. Last Friday wasn’t doomsday; the S&P 500 always bounces back from such events, and Bull Theory is optimistic about a rebound by Monday’s opening bell.