1) Give credit up to 100% until T+3, and if its not settle on T+3, force sell 50% on T+5 and charge a fine.
1) Give credit up to 25%-50% of portfolio value and charge interest of 2% per month, calculated and charged on daily basis after T+3.
3)The credit limit is decided by the broker depends on the credit worthiness.
What do you think?