Comment on Zerodha F&O margin Calculator

Umesh commented on 13 Jan 2015, 06:32 PM

Dear Nithin,
Thanks a lot for all the knowledge which you have been imparting. I wanted to ask you a very basic questions about writing options(as I am relatively new to this). It is about writing NIFTY 8200 PE 29 Jan 2015. the details which I receive from the spam calculator are

Combined margin requirements
SPAN margin
Rs: 6,826
Exposure margin
Rs: 6,225
Premium receivable ?
Rs: 551
Total margin ?
Rs: 13,051
Now my question is with about 16 days to expiry the margin which I have to provide is Rs 13,051 for the above contract. does this margin will remain constant till the expiry if the price of underlying move in the favorable direction to my trade? also if the price moves adversely then how will the margin increase? If Nifty expires at 8201 will I be keeping the above premium and the margin? Pl reply

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