Record $8.19T Money Market Inflows Doom Trump Bull Market for S&P 500

Multiple articles on April 19 warn that a record $8.19 trillion in money market funds signals deep investor skepticism, threatening the S&P 500's Trump-era rally despite +70% gains since 2021. This shatters the prior $7.77 trillion peak from September 2025, driven by Iran war oil shocks from the Strait of Hormuz closure—disrupting 20% of global shipments—and risking higher inflation that could halt Fed rate cuts. With the S&P 500's Shiller P/E at its second-highest in 155 years amid $249B buybacks, these institutional flows heighten correction risks for S&P 500, Dow, and Nasdaq.