FINRA Ends the Pattern Day Trader Rule: What the New Intraday Margin Standards Mean
The rule that has defined active retail trading for a quarter century is gone. On April 20, 2026, FINRA published Regulatory Notice 26-10, adopting new intraday margin standards under Rule 4210 that replace the day trading margin framework in its entirety — including the pattern day trader designation and the $25,000 minimum equity requirement that came with it. The changes took effect June 4, 2026, with brokers permitted an 18-month phase-in through October 20, 2027. Firms are now migrating accounts onto the new system, and many traders are receiving migration notices from their brokers.
Here is what actually changed, and who should care.
The Old Regime: Count the Trades, Check the Balance
For roughly 25 years, the Pattern Day Trader rule worked as a blunt instrument. Make four or more day trades within five business days in a margin account — where those trades represented more than six percent of total activity — and the account was flagged as belonging to a pattern day trader. Once flagged, the account had to hold at least $25,000 in equity at all times. Fall below that line and trading was restricted to closing-only transactions until the balance was restored or a 90-day waiting period elapsed.
The threshold had not moved since the dot-com era. It classified traders by frequency rather than by the actual risk sitting in their accounts, and it treated a static end-of-day snapshot as the measure of exposure.
The New Regime: Watch the Exposure, in Real Time
The replacement discards trade counting entirely. There is no pattern day trader designation, no $25,000 floor, and no five-trades trigger. In their place, firms now monitor each margin account against its actual market exposure throughout the trading day.
The practical differences:
The $25,000 minimum is eliminated. Margin accounts revert to the standard $2,000 minimum equity requirement under existing rules. Accounts previously restricted for falling below $25,000 have had those restrictions lifted.
Day trades are no longer counted. Positions can be opened and closed intraday as often as available buying power allows, with no frequency-based flag.
Buying power is dynamic. Intraday buying power is calculated in real time from current open positions and their margin requirements, and it fluctuates through the session as prices and positions move — rather than being fixed by the prior day’s end-of-day figure.
The Intraday Margin Deficit
The new concept that replaces the old restrictions is the intraday margin deficit, or IMD. It arises when trading activity pushes an account’s required maintenance margin above its equity — that is, when a margin-reducing transaction erodes the cushion between what an account holds and what it is required to hold.
The transactions that create this exposure are the familiar leveraged ones: short sales, and purchases of securities on borrowed money. When such activity produces a deficit, the firm issues an IMD call, satisfied either by depositing funds or by closing positions that release the required margin.
The regulatory language requires deficits to be cured as promptly as possible. A 90-day restriction applies where a customer makes a practice of failing to satisfy deficits promptly and fails to cure by the close of the fifth business day — subject to carve-outs for small deficits and extraordinary circumstances. Individual brokers are free to impose stricter house policies, so the cure windows and strike counts stated in a broker’s own migration notice may be tighter than the underlying rule. The specific thresholds are worth confirming directly with the broker.
Who This Actually Affects
The entire intraday deficit mechanism is a margin phenomenon. It attaches to leverage. A deficit can only form from a margin-reducing transaction, and the new deficit calculation explicitly excludes cash accounts.
For a trader who does not short and buys only with settled cash actually held in the account, positions are fully paid for, no loan exists against them, and there is nothing to produce a maintenance shortfall. The apparatus described above largely does not reach that trader.
Two qualifications keep that conclusion honest.
The first is the buying-power display. A margin account may now show intraday buying power computed at a 25 percent maintenance requirement — up to roughly four times deposited cash. Treating that inflated figure as available funds, and buying against it, is using leverage whether or not it feels like it, and that is precisely how a deficit is created. The discipline is to stay under actual deposited cash, not under the buying-power number the platform presents.
The second is settlement, a separate and older rule set. In a cash account, buying with unsettled proceeds and selling before settlement can trip a good-faith or freeriding violation. This has nothing to do with the margin migration, but it is the constraint a genuinely cash-only trader is more likely to encounter.
The Net Effect
For active margin traders, the change is a meaningful loosening: no $25,000 wall, no trade counting, no frequency-based freeze. The trade-off is that risk is now measured continuously rather than at the closing bell, so a deficit can form intraday from position moves alone rather than only from how many trades are placed.
For traders who avoid shorting and deploy only cash they own, the migration notice is mostly informational. The one way into the deficit machinery is to buy against leveraged buying power rather than against the real balance. Avoid that, and the new framework changes little beyond the label removed from the account.
This article is informational and does not constitute investment, tax, or legal advice.