Trading Education
What Is the Pattern Day Trader Rule? PDT Explained Simply
Understand the historical PDT rule, its 2026 replacement, and the difference between margin-account restrictions and cash-account settlement.
Source updated
- Originally published
- Source updated
In this article
The Pattern Day Trader, or PDT, rule is the older US securities margin framework associated with a $25,000 minimum account equity requirement for frequent day trading. It remains relevant when reading historical material and during brokers' transition to its replacement.
Check your account's current framework first. FINRA Notice 26-10 replaces the PDT provisions with intraday margin standards, effective June 4, 2026, with an implementation transition available to firms through October 20, 2027.
What “Pattern Day Trader” Meant
Under the historical PDT provisions, the numerical test generally involved four or more day trades within five business days, when those day trades exceeded 6% of total trades in the margin account for that period. A firm could also apply the designation when it reasonably expected the customer to engage in pattern day trading. The associated minimum equity was $25,000. FINRA's day-trading explanation
A day trade involves opening and closing the same security on the same day in a margin account. Counting becomes less intuitive with partial fills, multiple entries or options strategies, so use the broker's explanation for its calculation rather than a homemade “three trades each week” rule.
What the Replacement Means
The new framework uses intraday margin requirements instead of the PDT classification. For the change timeline and practical broker questions, read our 2026 transition update.
Do not assume the rule effective date is the migration date for every account. A broker's current restrictions, account permissions and house requirements remain important.
Cash Accounts Are Different
A cash account does not borrow under a margin agreement. Its payment and settlement requirements still constrain trading. Reusing proceeds without understanding whether payment obligations are satisfied can cause restrictions even when there is no PDT designation.
US stocks generally settle one business day after the trade under the T+1 cycle. Holidays and the type of security matter. Read the SEC's T+1 investor bulletin alongside your broker's cash-account guidance.
Product Type Matters More Than the Word “Crypto”
Do not assume a security escapes securities-account rules because it tracks cryptocurrency, foreign exchange or futures. Trading an exchange-traded security in a brokerage account is different from trading its underlying asset directly.
Likewise, opening an account from outside the US does not by itself establish an exemption. Identify the contracting brokerage entity and the rules applicable to that account.
A Sensible First Check
Before opening a position, know the account type, available settled cash or margin, permitted products and the action required if the account becomes restricted. Separately calculate what you can afford to lose. Changing markets or opening additional accounts should not substitute for understanding those basics.
Frequently Asked Questions
Does every day trader need $25,000?
No. The answer depends on the account framework, product and broker requirements. The historical PDT threshold should not be presented as a universal rule across all accounts or markets.
Can a PDT flag always be removed?
Do not assume a universal reset policy. Ask the broker about the current account restriction and its transition to the replacement framework.
Is a cash account unrestricted?
No. Cash accounts have payment and settlement obligations, as well as product permissions and broker controls.
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