To see how much margin is required for an order, you can click on the icon next to the "Place Buy Order", and check the second tab labelled "Order Detail Preview".
How to register an account and receive your dividends from the share registry
Why is Tiger Brokers asking for my information when I open my account?
Does Tiger support pre and post-market trade in the US market?
How do you convert between currencies? Are there any fees for converting one currency to another?
How are withholding taxes and other fees determined on dividends?
To see how much margin is required for an order, you can click on the icon next to the "Place Buy Order", and check the second tab labelled "Order Detail Preview".