Rule 5310 - Best Execution and Interpositioning

Rule 5310 requires FINRA member firms to obtain the most favorable terms for customer orders, considering price, speed, and likelihood of execution, and to disclose any interpositioning practices where the firm places its own orders ahead of client orders. It outlines the standards for monitoring, reporting, and documenting best-execution compliance, and mandates that firms maintain policies to prevent conflicts of interest that could disadvantage customers.