portfolio margin account, how to avoid margin call ?

W

williamchangnpu

Recently I upgraded to portfolio margin account, which parameter should I watch to avoid margin call?
When I was Reg T margin account, I knew that there is a parameter called SMA, I should keep this number positive to avoid a margin call, but when I upgraded to portfolio margin account, this parameter no longer exists any more, so which parameter should I watch closely when I leverage too much?
There are several parameters at the Account-> Margins column, basically Initial Margin and Maintenance Margin. Should I just keep my Net Liquidation Value above the Maintenance Margin? I have googled and read a bunch of stuff, but still I can't figure out.
 
Keep your net liq value at least 4SD above maintenance margin and set liquidate last on anything that ever has a wide bid-ask spread. I got burned one time when IB liquidated an option position with a market order instead of just delta hedging it or selling something else.

Net liq value < maintenance margin triggers (very fast) liquidation.
 
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