Do day trading rules apply to a cash account?

FINRA's pattern day trader rule is written for margin accounts. A cash account is limited by settlement instead: you trade with settled funds, and selling a position bought with unsettled money before that money settles is a good faith violation. The rule is under revision at FINRA, so ask your broker what applies today.

What is a good faith violation?

In a cash account, it happens when you buy a stock with money from a sale that hasn't settled yet, then sell the new stock before that money settles. Brokers restrict accounts after repeated violations, typically to trading with settled cash only for a period, and each broker sets the details.

Can you trade options in a cash account?

Usually, within limits. Brokers generally allow buying calls and puts, and selling covered calls or cash-secured puts, in a cash account, subject to your options approval level. Uncovered short options need a margin account, and so do some spreads, depending on the broker. Check your broker's approval tiers.

Cash Account vs Margin Account: Which Is Better for Swing Trading?

Q: Cash Account vs Margin Account: Which Is Better for Swing Trading?

A cash account works for most swing traders, since holding overnight avoids day trade rules and T+1 settlement frees sale proceeds the next business day. A margin account adds borrowing, the use of unsettled funds and the ability to short, but it charges interest and losses can exceed the cash you put in.

Monday morning, you sell $4,000 of stock in a $10,000 cash account. The sale shows up in your balance right away. The money itself settles Tuesday.

For a swing trader, that one-day gap is most of the difference. Everything else, borrowing and shorting and the day trade rules, follows from whether your broker is lending you money or only letting you spend what you have.

How does a cash account handle your trades?

You trade with settled cash. Under the SEC’s T+1 standard, a stock sale settles one business day after the trade date, so money from Monday’s sale is settled and yours to use without restriction on Tuesday. Business days are what count. Sell on a Friday and the cash settles Monday, and a market holiday in between pushes it back a day.

Your broker will usually let you buy with unsettled proceeds on Monday. The catch is selling those new shares before the money that paid for them settles. That’s a good faith violation. In the example above, it means buying on Monday with the $4,000 and selling the new position again before Tuesday. Wait until Tuesday to sell and there’s no violation.

Repeated violations lead to restrictions. The usual result is a period in which you can only buy with fully settled cash, but the count that triggers it and the length of the restriction are set by each broker.

For swing trades held several days, none of this bites often. You buy, you hold, and by the time you sell, the cash you bought with settled days ago, so the only way to run into trouble is to rotate quickly from one position into the next and then out again within a day. Holding for days, you rarely will.

What does a margin account add?

Three things.

Unsettled proceeds become usable, so the Monday-to-Tuesday gap disappears. You can borrow against your holdings. And you can sell short.

The borrowing costs money. Interest accrues daily at your broker’s rate. A position held for weeks on borrowed money pays interest for weeks, which is one reason how long a swing trade should last is also a cost question.

Borrowing also changes the size of the worst case. In a cash account you can lose what you put in and no more. With margin, a stock that gaps down hard against a leveraged position can leave the account owing the broker money, and a margin call can force you to add cash or sell at a bad price, often right after the gap, when you’d least want to. Size margin trades from the stop and the gap. Treat borrowing power as a ceiling. The swing trade risk calculator works from your stop distance.

Do the day trade rules affect swing traders?

Mostly no. FINRA’s pattern day trader rule applies to margin accounts that day trade frequently, meaning they open and close the same position within one trading day. Holding a position overnight doesn’t count as a day trade.

The rule can still catch a swing trader who takes a quick exit. Buy in the morning, see news at noon, sell before the close. That’s a day trade, whatever you intended.

Do you need margin to short a stock?

Yes. Short selling means borrowing shares to sell, and that borrowing happens inside a margin account. A cash account can’t hold a short stock position at all. If your swing setups include short trades, the choice is made. Budget for the extra cost, too: shares that are hard to borrow can carry a borrow fee that your broker sets and can change while you hold the position.

Which one should you use?

Long only, held for days, no borrowing? A cash account does the job. It caps your loss at your deposit, charges no interest, and keeps you clear of the day trade rules, which in practice covers most of what a patient swing trader needs from an account. The only real constraint is settlement, and with T+1 that’s a one-day wait.

A margin account makes sense when you short, when you move between positions quickly enough that settlement gets in the way, or when you want the option to borrow. You can open margin and never borrow. That gets you the settlement flexibility without the interest, and the loss risk from leverage only applies if you actually use it. Neither account protects you from a gap, though. An overnight move hits both the same, which is why holding over the weekend is a sizing decision whichever account you pick.