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For 25 years, four trades in five days could lock you out of your own margin account. That era is ending.
On April 14, the SEC approved FINRA’s proposal to eliminate the Pattern Day Trader (PDT) rule and replace it with a new intraday margin framework. The $25,000 minimum equity requirement for day trading in a margin account was eliminated and the “pattern day trader” designation is gone.
It’s the most significant change to margin rules since the collapse of the dotcom bubble. This article will cover details and what it means for active traders.
The current rule began as tech stocks fell in 2001. Regulators worried about undercapitalized retail accounts racking up excessive commissions from heavy trading. They defined day trading as buying and selling the same security in a single session. Accounts doing this at least four times in a rolling five-session period were categorized as “pattern day traders,” and required to hold at least $25,000 of equity.
The intention was to create a capital buffer against high commissions — not to eliminate the practice of day trading. But now that commissions are near zero and executions have improved, the rule has become obsolete.
This year’s new framework eliminates:
FINRA’s new rule introduces the concept of Intraday Margin Level (IML). It’s a running calculation of a margin account’s maintenance margin excess or deficit. IML is updated intraday (instead of the close of each session).
Brokers will determine the highest intraday exposure in a customer’s margin account during the trading day. If the account doesn’t have enough margin to cover that exposure, it creates an Intraday Margin Deficit (IMD). The customer is then required to satisfy that deficit as promptly as possible.
In other words, the old framework limited behavior based on past activity. The new structure measures risk in real time.
A few key details:
So, some things remain the same. Regulation T initial margin requirements are unchanged. End-of-day maintenance margin requirements are unchanged. Brokers still set their own in-house margin policies and account minimums. And you still need a margin account to day trade on margin. Cash accounts require 100 percent of the purchase price, which was true before and remains true now.
| Old Rule | New Rule | |
| PDT Designation | 4 day trades in 5 business days | Designation eliminated |
| Minimum Day Trading Equity | $25,000 for PDT flagged accounts | No minimum based on day trading |
| Margin Calculation | Day trade buying power based on prior day’s close | Intraday Margin Level (IML) can be calculated intraday |
| Intraday P&L in Margin Calculation | Not included | Included |
| Deposit Hold Period | 2-day holds | No hold required |
| Can Trade into a Margin Call? | No (for PDT accounts) | Yes |
| Cross-Account Guarantees? | Not allowed for PDT requirements | May be allowed under Rule 4210(f)(4) |
| Margin Call Satisfaction | 5 business days | As promptly as possible |
The PDT rule restricted how often certain accounts could trade based on an old threshold. The new intraday margin framework instead focuses on whether an account has enough margin to support its intraday activity.
The updated framework removes a barrier that prevented margin accounts with less than $25,000 from participating in various intraday strategies. It also modernizes the margin framework to better reflect how traders operate after the passage of a quarter century.
For traders who were limited by the old rule, this opens a new chapter. For those already above the $25,000 threshold, the operational changes (no more trade counting, no more PDT designation, intraday P&L included in margin calculations) represent a cleaner framework.
Brokers have flexibility in how and when they implement the new rules. FINRA has provided an 18-month transition period for firms that need time to update their margin calculation infrastructure. Each firm will determine its own implementation timeline.
TradeStation will share specific details as they become available. We’re working to support this as quickly as possible while also ensuring proper testing and operational flows.
Margin trading involves risks, and it is important that you fully understand those risks before trading on margin. The Margin Disclosure Statement outlines many of those risks, including that you can lose more funds than you deposit in your margin account; your brokerage firm can force the sale of securities in your account; your brokerage firm can sell your securities without contacting you; and you are not entitled to an extension of time on a margin call. Review the Margin Disclosure Statement at www.TradeStation.com/DisclosureMargin.
Sources: FINRA Regulatory Notice 26-10. This article is for informational and educational purposes only and does not constitute investment advice or a recommendation to buy, sell or hold any security.