Span Margin Calculator
The Tradedeal’s Span margin calculator is one of the first online tools in India that lets the user calculate margin requirements for option shorting or F&O strategies while trading equity, F&O, commodity and currency before actually making the trade.
The calculator helps the investor calculate the span margin and exposure margins charged by the exchanged.
In NRML margin would already be blocked when you take position. After Margin block if your free cash become zero due to MTM Loss, you will have to fund the account to cover any potential MTM loss. Failing to do so result in your position being squared off.