According to FINRA, StoneX Financial Inc., based in Winter Park, Florida, was censured, fined $70,000, and ordered to pay $27,074.36 plus interest in restitution for failing to provide best execution with respect to orders in Over-the-Counter (OTC) securities received from other broker-dealers on behalf of their customers. The firm was found in violation of its best execution obligations under FINRA rules.

Best execution is one of the most important obligations that broker-dealers owe to their customers. It requires firms to use reasonable diligence to ascertain the best market for a security and to buy or sell in that market so that the resulting price to the customer is as favorable as possible under prevailing market conditions. This obligation exists to ensure that investors receive fair treatment when their orders are executed.

The findings revealed that StoneX Financial's supervisory system for best execution in OTC securities failed to account for price opportunities available through an electronic messaging service known as OTC Link messages. OTC Link is a widely used inter-dealer quotation system that displays quotes and facilitates trading in OTC securities. By excluding OTC Link messages from its supervisory review, the firm had no way to determine whether customer orders received inferior executions compared to prices that were available through OTC Link. This systematic blind spot meant that customers may have consistently received worse prices than what was available in the market.

The firm later addressed the issue by integrating OTC Link messages into its order management system and implementing a new supervisory review process. However, the damage to customers had already been done during the period when the firm's systems were deficient.

For investors, this case is a reminder that best execution is not merely an abstract regulatory concept but a practical obligation that directly affects the prices investors receive when buying or selling securities. When firms fail to consider all available price sources, investors can end up paying more for securities they buy or receiving less for securities they sell. Investors who trade in OTC securities, which may include smaller or less liquid companies, should be particularly attentive to execution quality. Investors can review their trade confirmations to check the prices they received and should not hesitate to ask their broker about the firm's best execution practices and how it ensures customers receive competitive pricing.