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Susquehanna says it lost millions to mystery bets over China's crackdown on Futu, Tiger Brokers

Reported by Opalesque
Jun 29, 2026· 2 min read
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Key Takeaways
  • • Susquehanna International Group reports multimillion-dollar losses stemming from unexplained market positions linked to China's regulatory enforcement actions against Futu Holdings and Tiger Brokers.
  • • The losses underscore concentration risk and regulatory uncertainty in Chinese fintech and brokerage sectors, where policy shifts can trigger rapid market dislocations affecting leveraged positions.
  • • The case illustrates challenges facing US institutional investors managing exposure to Chinese financial platforms, where regulatory enforcement can occur with limited advance notice and create cascading losses across related securities.
Summary
Susquehanna International Group, a major US-based quantitative trading and investment firm, disclosed multimillion-dollar losses attributed to unspecified market positions that deteriorated following China's regulatory crackdown on Futu Holdings and Tiger Brokers, according to reporting from Opalesque Alternative Market Briefing.

The losses highlight the acute risks institutional investors face when maintaining exposure to Chinese financial services companies operating in regulatory gray zones. Futu Holdings and Tiger Brokers, both prominent online brokerage platforms serving retail and institutional traders, faced enforcement scrutiny from Chinese authorities. The timing and scale of regulatory action created market dislocations that Susquehanna's positions were unable to withstand, resulting in significant capital impairment.

The incident underscores a broader vulnerability in alternative investment strategies targeting Chinese fintech and brokerage assets: regulatory policy can shift suddenly and without sufficient market signaling, leaving even sophisticated portfolio managers exposed to rapid repricing. Susquehanna's experience suggests that positions believed to be hedged or protected against downside risk proved inadequate against the magnitude and speed of China's enforcement actions.

For institutional investors and hedge funds with exposure to Chinese financial platforms, the case reinforces the need for enhanced scenario analysis around regulatory risk, more conservative position sizing in jurisdictions with evolving compliance frameworks, and closer monitoring of regulatory signals from Chinese authorities. The losses also raise questions about the adequacy of risk models that may underestimate tail risks in markets where policy implementation can outpace market expectations.

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Sources

1 outlet

AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Opalesque Susquehanna says it lost millions to mystery bets over China's crackdown on Futu, Tiger Brokers