Read: http://www.mbtrading.com/margin.pdfQuote from gsz55:
but u said
BTW, intraday BP is 4:1 for PDT accounts over $25K (not 2:1).
I dont understand why 4times larger than cash balance?
If I have $500,000 in account, I can buy $1000,000 only, not
$2000,000.
Quote from gsz55:
Thank you a lot for very kindly answer!
I understand most broker system will make buying power reduce immidiately when loss in trading.
and I believed margin buying power is 2 times larger than cash balance in margin account.
but u said
BTW, intraday BP is 4:1 for PDT accounts over $25K (not 2:1).
I dont understand why 4times larger than cash balance?
If I have $500,000 in account, I can buy $1000,000 only, not
$2000,000.