What FINRA Found
According to FINRA's public disciplinary record, hundreds of thousands of over-the-counter (OTC) orders were removed from Citadel Securities' automated trading systems during the relevant period, requiring manual handling by human traders. FINRA found that Citadel Securities then 'traded for its own account on the same side of the market at prices that would have satisfied the customer orders' — a practice that could potentially disadvantage customers by taking liquidity the customers sought.
The Conflict of Interest
The conduct FINRA described involves a potential conflict: when a market maker removes a customer order from automated processing and then trades for its own account in the same direction at prices that could have filled the customer, it raises questions about whether the customer's order was being handled in the customer's best interest. This is the type of conduct FINRA's rules are designed to prevent.
Nine Years of Conduct
The time span of the alleged conduct — approximately nine years — is notable. The fine of $700,000 for nearly a decade of activity has been characterized by critics as modest relative to the revenues Citadel Securities generates. Whether the fine was proportionate to the conduct is a matter on which observers disagree, and The Ethics Reporter presents it as an open question.
Investor Takeaways
Retail investors whose orders were routed to Citadel Securities during the affected period may not know whether their specific orders were subject to the conduct described. FINRA's action was a firm-level sanction; individual investors who believe they were harmed would need to pursue separate complaint or arbitration processes.