With reference to FINRA, any trading account under $25,000 will be subject to a "Day Trading Margine Requirement"
Please refer to this website for details:
https://www.finra.org/investors/learn-to-invest/advanced-investing/day-trading-margin-requirements-know-rules
i.e TD Ameritrade further restricts their accounts to 3 intra day trades (In/Out Same day) for 5 trading days and they will "flag" your account if you incur such a restriction. Here's a message from them on what can happen to your account if you perform 3 intra day trades.
So be careful to trade options if your account size is small to build multi legs option strategy.
Please refer to this website for details:
https://www.finra.org/investors/learn-to-invest/advanced-investing/day-trading-margin-requirements-know-rules
i.e TD Ameritrade further restricts their accounts to 3 intra day trades (In/Out Same day) for 5 trading days and they will "flag" your account if you incur such a restriction. Here's a message from them on what can happen to your account if you perform 3 intra day trades.
So be careful to trade options if your account size is small to build multi legs option strategy.