Insider trading cases surrounding Futu Holdings and Tiger Securities US stock options continue to ferment, and more and more suspected illegal profit accounts are surfacing. Previously, US options market makers Hainer International and Castle Securities had sued “John Does 1 Through 100” in the US federal court for the Southern District of New York — this is commonly used in US lawsuits to refer to defendants whose real identity has not yet been determined at the time of the lawsuit. It does not mean that 100 specific defendants have been confirmed, but rather a legal space reserved for subsequent identification through disclosure of evidence. The court issued an interim restraining order on June 29. From May 7 to May 21, 2026, accounts that bought Futu and Tiger short-term put options through brokerage firms such as Yingtou Securities, Futu, and Tiger were frozen. The restraining order defines “short term” as less than 30 days before the expiration date at the time of purchase. At the same time, the court also authorized the plaintiff to initiate evidentiary investigation procedures, allowing it to directly issue third party subpoenas to Yingtou, Tiger, and Futu to obtain information such as the identity, contact information, account data and transaction records of the relevant account holders in order to ascertain the true identity of the anonymous defendant.

Insider trading cases surrounding Futu Holdings and Tiger Securities US stock options continue to ferment, and more and more suspected illegal profit accounts are surfacing. Previously, US options market makers Hainer International and Castle Securities had sued “John Does 1 Through 100” in the US federal court for the Southern District of New York — this is commonly used in US lawsuits to refer to defendants whose real identity has not yet been determined at the time of the lawsuit. It does not mean that 100 specific defendants have been confirmed, but rather a legal space reserved for subsequent identification through disclosure of evidence. The court issued an interim restraining order on June 29. From May 7 to May 21, 2026, accounts that bought Futu and Tiger short-term put options through brokerage firms such as Yingtou Securities, Futu, and Tiger were frozen. The restraining order defines “short term” as less than 30 days before the expiration date at the time of purchase. At the same time, the court also authorized the plaintiff to initiate evidentiary investigation procedures, allowing it to directly issue third party subpoenas to Yingtou, Tiger, and Futu to obtain information such as the identity, contact information, account data and transaction records of the relevant account holders to find out the real identity of the anonymous defendant.