The Financial Industry Regulatory Authority (FINRA) has filed with the Securities and Exchange Commission (SEC) a proposed rule change that would require the registration of associated persons of FINRA member firms who are primarily responsible for the design, development or significant modification of an algorithmic trading strategy (or responsible for the day-to-day supervision or direction of such activities).[1] The proposed rule is largely unchanged from the proposal initially disseminated by FINRA (see here) in early 2015. If approved by the SEC, the rule will require covered individuals to pass a qualification examination and register with FINRA as Securities Traders.