US-based Susquehanna Investment sued 100 'John Doe' defendants, claiming that they caused a loss of ₹675 crore. It alleged that traders used insider information about China's crackdown on Futu and Tiger, and that several put bets were placed from accounts at the brokerage firms. Traders purchased ₹113 crore in options and made profits of over ₹946 crore, it claimed.