FINRA's Cross-Market Surveillance
FINRA operates one of the world's largest securities surveillance programs, monitoring trading data across U.S. equities markets. Its automated surveillance systems screen for patterns indicative of manipulation, layering, spoofing, and other misconduct. Market makers are among the most closely monitored participants because their activities directly affect market quality for millions of investors.
Examination Programs
Beyond automated surveillance, FINRA conducts routine and for-cause examinations of broker-dealers. Examinations of large market makers typically assess order handling practices, best execution compliance, reporting accuracy, supervisory systems, and risk management. Findings from examinations can result in requests for corrective action, referrals to enforcement, or both.
BrokerCheck as a Public Accountability Tool
FINRA's BrokerCheck public database makes regulatory findings against broker-dealers available to the public. Investors can look up any FINRA-registered firm's disciplinary history. For Citadel Securities (CRD# 116797), the BrokerCheck file documents the regulatory events described in this series. BrokerCheck is an important transparency resource that The Ethics Reporter encourages investors to use.
The Limits of FINRA Oversight
While FINRA's surveillance program is extensive, it has limitations. FINRA is itself funded by the industry it regulates, which creates structural concerns about independence. Its budget is constrained relative to the complexity of modern markets. Critics have argued that FINRA's enforcement penalties for large market makers are frequently modest relative to the revenues those firms generate from the conduct at issue. In The Ethics Reporter's view, this proportionality question is legitimate and important.