FINRA Replaces PDT Rule With Intraday Margin Framework

FINRA has formally laid out the replacement for the old pattern day trader regime, following SEC approval of amendments to Rule 4210. In practical terms, the change removes the pattern day trader definition, the day-trade counting test, the $25,000 minimum equity requirement tied to that label, and the old day-trading buying power framework.

The replacement is an intraday margin standard built around a customer’s real-time or end-of-day market exposure. Firms can either monitor accounts throughout the day and block trades that would create an intraday margin deficit, or calculate that deficit after the close and issue a margin call. FINRA said the notice makes the rule effective 45 days after publication, which sets the effective date at 4 June 2026, with an 18-month phase-in available for firms that need more time to update systems.

That is a meaningful structural shift for active equity and options traders. Instead of a blunt trade-count rule, brokers will be supervising margin use based on actual exposure in the account.

Why it matters

For traders, the headline is not “more leverage.” It is a different gatekeeping system. Smaller active accounts may no longer be blocked by the legacy PDT label, but brokers will still be required to control intraday risk and collect deficits when exposure runs too high.

What to watch next

The real-world impact will depend on how each broker implements monitoring, warnings, trade blocks, and deficit calls. Traders should expect platform-level policy updates before the June effective date and should pay special attention to how their broker handles 0DTE options and repeat margin shortfalls.