PDT (Pattern Day Trader Rule)

The PDT rule is the piece of US regulation most likely to blindside a small account. It is also, as of 2026, the piece most likely to be out of date in whatever book or video you first learned it from. Both halves matter. ### The rule as it was written It lives in FINRA Rule 4210, approved by the SEC. A **day trade** is buying and selling, or selling and buying, the same security on the same day in a margin account. Per the SEC's [investor bulletin on day-trading margin](https://www.investor.gov/introduction-investing/general-resources/news-alerts/alerts-bulletins/investor-bulletins/margin), you were flagged as a pattern day trader once you placed four or more day trades in five business days, *and* those day trades made up more than six percent of your total trades in that account over the same window. That six percent clause is the part almost nobody knows. It is why an otherwise busy investor can place four same-day round trips and never get flagged, while a small account that does nothing else gets caught on trade four. The $25,000 was not a soft target either. The SEC bulletin is explicit that it had to sit in the account *before* any day trading, be maintained at all times, and could not be reached by cross-guaranteeing two accounts. Miss a day-trading margin call and you had five business days to meet it, with buying power cut to twice your maintenance margin excess in the meantime. Fail that, and the account was restricted to trading on a cash-available basis for 90 days or until the call was met. That is the freeze this term is famous for. ### What changed in 2026 FINRA has now replaced those provisions outright. Per [FINRA Regulatory Notice 26-10](https://www.finra.org/rules-guidance/notices/26-10), effective **4 June 2026**, the day-trade counting, the "pattern day trader" designation itself, and the $25,000 minimum equity requirement are all gone. In their place sit intraday margin standards, which ask whether your equity keeps pace with the market exposure you actually carry during the trading day, rather than tallying how many trades you made. Three things stop this being a free pass: - The floor moved, it did not disappear. The ordinary $2,000 minimum equity requirement for a margin account still applies. - Firms may phase the change in until **20 October 2027**, so your broker may still be running the old regime today. Check yours, do not assume. - The 90-day freeze survived. It just attaches to a new trigger now: failing to satisfy an intraday margin deficit by the fifth business day. How closely any of this is watched is a broker decision. FINRA notes that some firms monitor margin through the day while others calculate the requirement at the close, and regulators only ever set the floor in the first place. E*TRADE, for example, states that the buying power it displays reflects its own house maintenance requirements, which can be higher than the regulatory minimums. Your broker is allowed to be stricter than FINRA, and brokers frequently are. ### Where this leaves an undercapitalised beginner The original point still stands: forex has no PDT rule, and neither did cash accounts, because the rule only ever applied to margin accounts. But the cash-account route swaps one constraint for another, since you can only trade settled cash, and US equities have settled T+1 since 28 May 2024 per the SEC. What the 2026 change removes is a *regulatory* reason to be pushed into forex or futures purely for lack of capital. It removes none of the actual reasons a small, over-leveraged account fails. The rule was never the thing that made day trading hard.