U.S. Margin Debt Hits Record $1.5 Trillion
The Financial Industry Regulatory Authority reports record margin debt of $1.502 trillion, raising concerns about a potential AI-driven market bubble burst.
Outstanding margin debt in the U.S. stock market reached an all-time high of $1.502 trillion in June 2026. The Financial Industry Regulatory Authority reported a 77% increase in borrowed capital between April 2025 and June 2026, a surge driven largely by investor enthusiasm for artificial intelligence data center build-outs.
This rapid increase in leverage marks the fourth time since 1997 that margin debt has risen by at least 65% over a short period. Historically, similar spikes preceded the 2000 dot-com bubble burst, the 2008 Great Recession, and a 2022 bear market. While the Invesco QQQ Trust and SPDR S&P 500 ETF Trust have seen year-to-date gains of 22.02% and 12.86% respectively, the high level of leverage increases the risk of forced selling if prices decline.
Financial pressures have intensified as the Federal Reserve raised its target rate upper bound to 4.00% and the 10-year Treasury yield reached 5.24%. Investor Michael Burry warned this week that the AI bubble "may burst" sooner than he previously expected. Despite these risks, broader economic indicators such as the Sahm Rule and the VIX currently show no significant stress.
