sec2100 發表於 2023-8-19 21:56:11

portfolio margin

https://www.elitetrader.com/et/threads/portfolio-margin-for-day-traders.375819/

sec2100 發表於 2023-8-19 22:11:45

https://www.youtube.com/watch?v=kKpFZDV0M38&t=23s
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