According to FINRA, Citadel Securities LLC was censured and fined $1,000,000 on October 9, 2024, for failing to timely and accurately report data for tens of billions of equity and option order events to the Consolidated Audit Trail (CAT) Central Repository.

The firm developed a proprietary order and trade reporting system, testing process, and related supervisory procedures designed to comply with CAT reporting obligations. However, for over two years from the start of its CAT reporting obligation, the firm inaccurately reported certain data fields for equity and option order events to CAT, spanning 33 unique CAT reporting error types. The firm subsequently remediated these error types, some of which had persisted from a few weeks to nearly two years.

After remediating the 33 error types, the firm identified four additional issues that caused it to fail to timely and accurately report certain data fields to CAT for more than two and a half additional years. The firm ultimately remediated these issues and submitted corrections for the events a few months later.

The firm's reporting violations were caused by various coding and system issues, issues with data received from third parties, and the firm's interpretation of certain reporting scenarios. The firm identified many of the reporting errors through its supervisory reviews.

The Consolidated Audit Trail is a comprehensive database that tracks orders throughout their lifecycle, from inception through execution or cancellation. It was created to help regulators detect and investigate market manipulation, fraud, and other misconduct. When firms fail to accurately report to CAT, it undermines regulators' ability to monitor markets and protect investors.

While CAT reporting errors may seem like technical violations, they have real implications for market integrity. Accurate CAT data is essential for detecting market manipulation schemes that can harm retail investors. This case shows that even sophisticated firms with substantial resources can struggle with the technical requirements of modern market regulations. Investors should be reassured that FINRA takes these reporting obligations seriously and will impose substantial fines when firms fail to meet their obligations, even when the failures are technical in nature rather than intentional.