Traders' Secret Tip Cost a Wall Street Firm $70 Million

Susquehanna Securities sued on June 29, 2026, after unnamed traders made $70 million betting that Chinese stock prices would fall. The traders knew about coming government rules before the public did. Susquehanna, selling the other side of the bet, priced it based on public facts. When the secret regulatory news broke, Susquehanna lost $70 million.