Retail Day Trading Now Governed by Risk Exposure Rather Than Account Balance

Retail investors with less than $25,000 in their margin accounts can now execute more than four day trades in five business days. This change follows the SEC's approval of a mesma rule change proposed by FINRA, which eliminates the Pattern Day Trader designation and the $25,000 minimum equity requirement. The previous framework restricted margin account holders who made four or more same-day trades within five business days from continuing to day trading unless they maintain that balance. FINRA stated the $25,000 threshold was designed to prevent overtrading when commissions eroded returns, a logic that no longer applies in the era of zero-commission trading. The SEC action also eliminates all related day-trading buying power provisions under FINRA Rule 4210. Broker-dealers must now follow new intraday margin standards that require them to monitor and address real-time risk exposure in customer margin accounts. Customers may be required to add funds to their accounts or reduce positions if their risk exposure grows too large.