Why is an additional 2% margin required on expiry day?

Modified on Fri, 7 Feb at 3:49 PM

As per risk management regulations, an extra 2% Exposure Margin (ELM) is applied to short index option positions carried forward on expiry day. This additional margin helps mitigate risks associated with increased volatility and ensures that traders have sufficient funds to cover potential losses.

For example, if you are shorting Nifty 25000 CE with a lot size of 25, the additional margin will be:
Formula: 2% × Strike Price × Lot Size
Calculation: (2 / 100) × 25000 × 25 = ₹12,500

This ₹12,500 per lot will be blocked in your account as part of the margin requirement. To avoid margin shortfalls and potential square-off of your positions, ensure you have sufficient funds before expiry day.

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