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Online Brokerage Not Responsible for Trader’s $25 Million Loss

Reported by Courtnewsohio
Jun 18, 2026· 2 min read
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Key Takeaways
  • • The Supreme Court of Ohio ruled on June 18, 2026, in *Bitounis v. Interactive Brokers, L.L.C.* that an online brokerage providing only routine business functions is not liable for $25 million in losses sustained by investors in a private hedge fund scheme.
  • • Interactive Brokers defeated allegations that it aided a $25 million fraud orchestrated by a hedge fund manager, with the court determining the brokerage's role was limited to standard operational services rather than active participation in the scheme.
  • • The decision establishes that brokerage platforms offering basic execution and account management services cannot be held liable for fraudulent investment schemes conducted through their platforms when the firm does not actively facilitate or participate in the underlying fraud.
  • • This ruling provides legal clarity on the liability boundaries for online brokerages in cases involving third-party fund managers and reduces exposure for platforms that maintain arms-length relationships with users conducting their own investment activities.
Summary
On June 18, 2026, the Supreme Court of Ohio issued a consequential ruling in *Bitounis v. Interactive Brokers, L.L.C.* (Case No. 2024-1290), determining that Interactive Brokers LLC is not responsible for $25 million in losses incurred by investors who funded a private hedge fund through accounts maintained on the brokerage's platform.

The case centered on whether Interactive Brokers bore liability for losses arising from a fraudulent investment scheme. Investors sought a court order requiring the brokerage to compensate them for funds lost to risky trades executed by a fund manager operating deceptively. Court records indicate the scheme involved a young operator who positioned himself as managing a hedge fund while soliciting investor capital through accounts established at Interactive Brokers.

The Ohio Supreme Court's decision hinged on the distinction between a brokerage firm's provision of "routine business functions" versus active participation in or facilitation of fraud. The court ruled that Interactive Brokers, by limiting its role to standard execution, clearing, and account management services, did not cross the threshold of liability for third-party misconduct. This determination reflects established legal doctrine that intermediaries are not automatically liable for the fraudulent acts of their users absent direct involvement or willful blindness to the scheme.

The ruling carries significant implications for the online brokerage and fintech industries, as it clarifies that platforms offering basic services to customers can maintain legal separation from investment activities conducted on their infrastructure. For Interactive Brokers, the decision eliminates exposure on this substantial claim and provides precedent supporting the brokerage's position that it operated within appropriate boundaries of its service obligations.

For institutional investors and alternative investment professionals, the decision underscores the importance of conducting independent due diligence on fund managers and counterparties, as custody and execution venues are not inherently liable for fraud perpetrated by account holders, even when losses are substantial.

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Sources

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

Courtnewsohio Online Brokerage Not Responsible for Trader’s $25 Million Loss