SEC Investigates Market Maker Susquehanna: Suspected Insider Trading Profits Exceed $100 Million
The U.S. Securities and Exchange Commission (SEC) is investigating market maker Susquehanna over allegations of insider trading, where unknown trading parties made significant purchases of related U.S. stock options before Chinese regulators announced a crackdown on cross-border brokers Futu Holdings and Tiger Brokers on May 22.
These trading parties reportedly profited at least $100 million with an investment of about $12 million, while Susquehanna, as the counterparty, incurred losses exceeding $70 million. U.S. courts have frozen suspected related accounts' assets on Interactive Brokers, Futu, and Up Fintech platforms, allowing subpoenas to reveal the actual identities of account holders.
In market mechanisms, precise options betting drove rapid capital inflow into bearish positions before the regulatory event, with information asymmetry causing market makers to passively assume risk exposure. Profiting parties benefited from prior knowledge of the crackdown, while liquidity providers like Susquehanna faced pressure and losses, prompting regulatory intervention and investigation.
Source: Public Information
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Susquehanna, as a major global market maker, has previously faced significant losses in high-frequency trading and options markets due to counterparty information advantages in similar cross-border events. This time, it has proactively initiated a John Doe lawsuit and sought SEC support to trace the trading parties.
In terms of capital flow, the unknown trading parties leveraged options to mobilize limited funds for precise bets, motivated by the use of non-public regulatory information to achieve high returns. Specific actions included purchasing a large number of short-term put options within two weeks and closing positions for profit after the announcement, facilitating resource transfer from information channels to offshore capital platforms.
Similar to past abnormal trading cases before Chinese regulatory crackdowns on specific industries, this case sees market makers and regulators transitioning from passive losses to active enforcement, coinciding with the regulatory cycle of penalties against Futu and Tiger Brokers.
Essentially, this reflects regulatory changes: the breach of cross-border information barriers has temporarily shifted pricing power to informed parties, with court freezes and SEC investigations facilitating a return to compliant market makers. The mechanism aims to enhance market fairness to prevent systemic capital outflow due to insider trading.
ABAB News · Cognitive Law
The more extreme the information asymmetry, the more astonishing the leveraged profits, and the more inevitable the regulatory accountability.
Market maker losses signal market conditions, with the ultimate payers always being the compliant system.
Abnormal trading before regulatory crackdowns reveals capital flows that disclose the truth earlier than the announcements themselves.