Margin calculator
Estimate how much margin a futures position or a short option needs, what buying options costs, and how much leverage that means.
| Buy or sell futures | ₹1,95,000 |
| Sell options (about the same as futures, plus premium received) | ₹1,95,000 |
| Buy options (premium only) | ₹7,800 |
Leverage on futures: 8.3×. A 1% move in the underlying is ₹16,250, or 8.3% of your margin.
This is an estimate. Exchanges set SPAN and exposure margins daily, and they rise around events and on expiry days. Index futures often need roughly 10% to 15% of contract value; check your broker's margin calculator before trading.
SPAN and exposure margin
For futures and option selling, the exchange blocks SPAN margin (the worst expected one-day loss) plus exposure margin (an extra buffer). Option buyers pay only the premium. Leverage cuts both ways: a small move against a futures position can be a large share of the margin.
For study and educational use. Not investment advice. Results are only as good as the numbers you enter.