Futures Margin and Leverage: Measure the Exposure Behind the Deposit

Calculate notional exposure

Multiply the futures price by the current lot size and number of contracts. Compare this value with the trading capital to see the effective exposure controlled by the position.

• Futures price
• Exchange lot size
• Number of contracts
• Total notional value

Separate margin from planned loss

The broker may block only part of the notional value, but a move in the contract affects the full quantity. The entry-to-stop distance multiplied by quantity provides an initial planned-loss estimate.

Allow for gaps and margin changes

Overnight or event-driven gaps can produce an exit beyond the planned stop. Volatility can also change exchange or broker margin requirements, creating additional funding pressure.

Size from capital risk

Choose the maximum rupee loss first and calculate whether one contract fits. If the smallest contract exceeds the risk limit, the instrument may not fit the account or scenario.

Stress-test the futures position

Calculate planned loss at the stop, then test larger adverse moves and a higher margin requirement. A stress test does not predict the worst outcome; it checks whether the account can absorb conditions that are worse than the base plan.

Include all correlated futures and cash positions. Available funds can fall quickly when several exposures respond to the same market event.

• Base stop loss
• Adverse gap scenario
• Higher margin requirement
• Combined portfolio exposure

Monitor the contract through its full life

Track expiry, liquidity migration, settlement rules and broker notices. A position suitable in the active near-month contract can become harder to manage as volume moves to the next expiry.

If margin changes or capital falls, recalculate leverage instead of assuming the entry-day relationship still applies. Risk management is continuous while the contract remains open.

• Days to expiry
• Current liquidity
• Updated account capital
• Revised leverage