Investors borrowed a record $1.5 trillion to buy stocks in June 2026

Investors borrowed a record $1.5 trillion in June 2026 to buy stocks. Tesla investor Hy Luu in Houston is one trader using this strategy. Borrowed money surged nearly 49% from a year earlier. Meanwhile, the S&P returned just about 21% over that same period. Margin debt means money traders take from their brokerage firm, using existing investments as collateral. "Margin debt hit a record $1.5 trillion in June 2026." Trading on borrowed cash makes the wins bigger and the risks higher.