@jpagp3 This is how you can calculate the margin indicator’s percentage:
Over 50%: [ Total funds / (Total F. + Blocked F.) ] x 100
Example: Let’s you have $500 & have invested 250 in SPX.
[ 500 / (500 + 250) ] x 100 = ( 500 / 750 ) x 100 =0.66(6) x 100 = 66.66
Equal to or under 50%: ( Total Funds / Blocked Funds ) x 50
In your example: ( 500 / 500 ) x 50 = 50%
Stop out level: ( 250 / 500 ) x 50 = 25%
Think of it this way, whenever your free funds drop to 50% of your total funds, the positions get liquidated.