At prop firms requiring security deposit, how is loss deducted from the deposit? Say I put a $5K security deposit for 10:1 leverage. If I lose 5K at the start, is the entire loss deducted from my deposit, or just a portion of it? If I have made the firm money larger $5K in the past and then lose just $5K, will the loss be deducted in a different way? Or is it different from prop firm to prop firm? Thanks!