SIG · Full chronicle and history

In July 2026, the insider trading case involving Futu and Tiger Brokers brought by a US market maker entered judicial proceedings, and court records disclosed that the funding chain of the named defendants involved investment institutions controlled by former Hong Kong Financial Secretary Antony Leung and others.

Wall Street market maker SIG filed a lawsuit in the Southern District of New York court in Manhattan, taking 100 mysterious accounts that had profited enormously by buying put options in advance with precision to court, and the judge issued a freezing order the same day.