Nothing in the rules of a standard Roth IRA prevents you from buying and selling stocks the same day. If you want to buy a stock again the same day you sold it, you have two options in an IRA. First, you can keep the cash handy in the account to cover the purchase. Alternatively, you can open a specialized IRA trading account, known rather imprecisely as an IRA margin account.
These accounts allow owners of an IRA to use the profits from a sale before the settlement date, as long as the sale is confirmed and the purchase transaction does not have a settlement date prior to the sale date. In this case, the broker guarantees that you will have cash in your account to cover the buying transaction, even if something goes wrong with the sale. Keep in mind that you can never buy more than you collect from the sale and the cash combined. Taking advantage of market fluctuations is an attractive idea for many investors, and access to online brokerage apps and brokerages has made day trading an increasingly accessible company.
However, the practice of day trading is maintained and is more common in the stock and currency markets. Unfortunately, while you can occasionally sell and buy back shares during the same trading day, brokerage account rules will prevent you from making it standard practice into an IRA. Intraday trading in a Roth IRA is difficult to do because of restrictions on the use of margin in retirement accounts and the FINRA rules on intraday employer trading. While the fact that you can't trade on margin in a Roth IRA excludes day trading, that doesn't mean that all active operations in a Roth IRA are ruled out.
The main rule that blocks the daily operations of a Roth IRA is that Roth IRAs are cash accounts and do not allow margin to be used to help buy securities. You can buy and sell the same stocks as often as you want, as long as you trade within the restrictions imposed by FINRA on daily trading with a boss and allowed by your broker. Regulation T of the Securities and Exchange Commission prohibits the practice of placing free bets or buying and selling stocks with money that is not yours. A designated daily trading account can only be a margin account, and since your IRA cannot be a margin account, stocks will not be allowed to enter and exit on a daily basis in your IRA.
However, Roth IRAs aren't designed for day to day trading and you're likely to do better with other strategies. Investors who successfully use the two-hour-a-day plan usually have a solid understanding of how market trading volume works (volume is a measure of the number of stocks traded over a period and can indicate the mood and strength of the market). Since day trading can be complex and risky, the Securities and Exchange Commission has issued a warning about this practice.