Margin requirements bull call spread at expiry

[ShubhS9]

@Rohan_K

Usually is the margin on expiry minus 4 days is double the normal dates for long ITM options?

The margin increases in phases.

@Rohan_K

Is there any calculator for margin calculation for expiry minus 4 days?

There’s no calculator, but here’s how the calculation works:

Why Margin for ITM Option Buying is huge ?

You can check the VAR, ELM and ADHOC margins on NSE website. Refer to this page for SBI stock. SBI’s VAR + ELM + ADHOC margin is 21.6%. So for contract value of 900,000 the applicable margin will be 194,580. On expiry minus 4 days you’ll need 10% of this margin if your Long Option position becomes ITM, so on and so fourth for other days.