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When people start buying stocks with borrowed money at rates not seen since the dot-com bubble, someone usually gets hurt. Deutsche Bank is now waving the yellow flag.
The bank’s credit strategists, led by Steve Caprio, published a warning on July 24 that US margin debt has crossed the $1 trillion mark as of June 2025. That’s not just a round number for headlines. As a share of GDP, margin debt has now surpassed levels seen during the late-1990s tech mania and is closing in on the 2021 all-time high.
The numbers behind the warning
Here’s what caught Deutsche Bank’s attention: NYSE margin debt jumped 18.5% from April to June 2025. That two-month sprint ranks as the fifth-fastest increase since 1998, a period that includes some of the most memorable market blowups in modern history.
Deutsche Bank’s strategists were blunt in their assessment: this level of heightened risk appetite is likely to curtail future market gains.
The analysts also noted that the current rally feels “different” and “hotter” compared to the 2023-2024 period. That distinction matters because it suggests the market’s character has shifted from cautious optimism to something closer to euphoria.
Why crypto investors should pay attention
When margin calls start hitting stock investors, they don’t politely sell only their worst-performing equities. They sell whatever they can, as fast as they can. That includes crypto positions, which many traditional investors now hold as part of diversified portfolios.
During the March 2020 COVID crash, Bitcoin dropped roughly 50% in a single day as traditional market participants scrambled to meet margin calls and raise cash. The 2022 crypto winter was similarly amplified by overleveraged positions, both in traditional and crypto-native lending markets.
The $1 trillion margin debt figure represents borrowing on NYSE alone. It doesn’t capture leverage embedded in the crypto ecosystem through perpetual futures, DeFi lending protocols, or offshore exchanges.
Historical echoes are hard to ignore
Deutsche Bank’s comparison to the dot-com era isn’t just rhetorical flourish. In the late 1990s, margin debt as a share of GDP hit what were then unprecedented levels. The Nasdaq subsequently fell nearly 80% from its March 2000 peak. During the mid-2000s housing bubble, leverage again reached extreme levels before the 2008 financial crisis erased trillions in wealth.
It’s worth noting that elevated margin debt can persist for months or even years before a correction materializes. The dot-com bubble took years to fully inflate. So this isn’t necessarily a timing signal. It’s a structural warning about what happens when the music eventually stops.
Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.
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