if i sell naked put... what is the general rule for margin ? I know they will keep the premium and add that to my credit. So for instance if I sell a put and get credit ( premium ) and this is naked short put ..... what is the required margin... IB, or SAXO 2 senarios if it is otm now and when it gets itm second part of the Q is what if i am am covered... does it reduce the margin requirment... because to cover the sold put, i need to go short in underlaying, so am I going to be asked to deposit more margin for short of the underlaying, and the sold put less the premium.. ?
For the second part of your question: You have to satisfy margin for one leg of your positions. Either short or naked put which is is higher.