Margin debt surpassed $1.4 trillion in May

6/19/2026 - Margin debt reached another record high, surpassing $1.4 trillion in May. Increased leverage continues to confirm the equity market rally from the late-2022 low. However, the 12-month rate of change in margin debt is now at its highest level since 2000, 2007, and 2021, suggesting a more mature signal.

FINRA margin debt (debit balances in customers' securities margin accounts) reached an all-time high of $1.416 trillion in May, supporting the S&P 500's move to new highs. This ongoing rise in margin debt reflects strong investor confidence, an increased appetite for risk, and speculative enthusiasm, serving as a confirming signal as investors expand equity exposure during bull markets.

Historically, the primary concern arises when margin debt begins to decline while the S&P 500 continues to advance. Such negative divergences preceded major market peaks in 2000, 2007, 2018, 2019, and 2021. At present, margin debt continues to confirm the bullish trend for equities, though the elevated 12-month growth rate suggests investors should monitor leverage trends closely for signs of deterioration.

Chart 1: S&P 500 (SPX) (top) and FINRA Margin Debt (bottom): Monthly chart

One risk is that the 12-month rate of change for margin debt has reached its highest level since 2021, 2007, and 2000.

Over the last year, margin debt has climbed 53.7% through May, confirming the strong uptrends in both margin debt and the S&P 500 (SPX) from their late-2022 lows. However, the 12-month rate of change has now reached its highest level since the major speculative peaks of March 2021 (71.6%), July 2007 (62.6%), and March 2000 (80.5%).

Importantly, those prior peaks preceded major monthly closing highs for the SPX in August 2000, October 2007, and December 2021, each of which was followed by significant market downside. While the current surge in leverage continues to confirm bullish momentum, the elevated 12-month rate of change also suggests increasing speculative excess and represents an important macro and sentiment indicator to monitor closely in the months ahead.

Chart 2: S&P 500 and margin debt (top) and 12-month rate of change for margin debt (bottom): Monthly chart

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