Closing out a futures position

Futures positions are obligations under standardized contracts. A trader who wants to exit before expiry often uses an offsetting transaction rather than waiting for delivery or final cash settlement. The details depend on the product, exchange and contract specification.

Match the contract and reverse the direction

A long position is closed by selling the same contract; a short position is closed by buying it back. The offset should match the contract specification and quantity. If the trader is long two futures contracts, selling one offsets only one unit and leaves one contract open. A trade in a different expiry or underlying is not a complete offset of the original contract.

Closing is not the same as rolling

A roll-over combines two steps: close the position in the nearer or expiring contract, then open a new position in a later-expiry contract. The later contract has a different delivery or settlement date and may trade at a different price. The trader remains exposed after the roll, whereas a simple close leaves no position in the matched contract.

A position can also reach settlement

If the trader does not offset before the contract's relevant deadline, the contract follows its settlement process. Depending on the product, settlement may be cash-based or involve delivery. Traders must check last trading day, final settlement day, delivery notice dates, margin and broker cutoffs; exchange contract rules control.

Exam example

An investor holds one long futures contract expiring this month and sells one contract with the same underlying and expiry. That sale offsets the existing long. If instead the investor sells the near contract and buys a later-expiry contract, the transaction closes one exposure and establishes another: it is a roll, not a full exit.

An offsetting trade must match the contract

To close a futures position by offset, enter an equal and opposite trade in the same contract, expiry month and contract specification. A long position is offset by selling the same number of contracts; a short position is offset by buying them back. Trading a different month or a different underlying does not close the original position, even if the risk is economically similar.

Calculate the realized price difference

The gain or loss is based on the difference between the opening and closing futures prices multiplied by the contract size and number of contracts, with sign determined by whether the original position was long or short. Deduct commissions, exchange fees and any other applicable costs. Margin returned is not itself profit; it is collateral released after the position and obligations are settled.

Example: long position

A trader buys one futures contract at 1,000 index points and later sells the same expiry contract at 1,020. If the contract multiplier is HK$50 per point, the gross price gain is 20 × HK$50 = HK$1,000 before costs and any variation-margin cash flows. If the closing sale is at 990, the gross loss is 10 × HK$50 = HK$500.

Example: short position

A trader sells a contract at 1,000 and later buys the same contract back at 970. The short gains 30 points times the contract multiplier, before costs. If the price rises to 1,030 before buyback, the short loses 30 points times the multiplier. These examples assume one contract and ignore intraday margin calls and fees.

Closing is not rolling

A rollover closes the expiring month and opens a new position in a later month. It creates two trades and may involve a calendar spread or price difference between expiries. The new contract does not erase the old position’s realized result. Traders should separately record the close, new opening, margin and any basis exposure.

Holding to expiry is different

If the position is not offset, it remains open and is handled under the contract’s settlement terms. Some contracts are cash-settled; others may involve delivery or other expiry procedures. The final settlement price and timing are set by the contract specifications. Do not assume a futures position automatically disappears at expiry without settlement consequences.

Margin and variation settlement

Futures margin is performance collateral, not the full purchase price of the underlying. Daily mark-to-market and variation-margin calls can require cash before the position is closed. Closing an offsetting trade stops further exposure after execution and clearing, but the account must still settle all accrued variation, fees and obligations.

Operational controls

Confirm account, product, expiry and quantity before submitting the closing order. Verify execution and clearing records, reconcile the position afterward, and monitor any residual contracts from partial fills. A mistaken close in the wrong month can leave the original risk open and create an unintended second position.

Exam method

State the same-contract opposite trade, show direction for long or short, calculate price difference times multiplier and quantity, then distinguish closing from rolling and expiry settlement. Mention transaction costs and margin only as appropriate to the question.

Calculate the result using the contract multiplier

For a standard futures contract, the gross price profit or loss is generally the price movement multiplied by the contract multiplier and the number of contracts, with the sign determined by whether the position is long or short. A long position gains when the settlement price rises; a short position gains when it falls. If the contract is quoted in index points, currency units or another convention, use that contract’s published multiplier and quotation method.

Example: a trader buys two contracts with a HK$50-per-point multiplier at 18,000 and later sells them at 18,120. The gross gain is 120 points × HK$50 × 2 = HK$12,000 before commission, exchange fees, taxes if applicable and financing or other charges. A 120-point decline would produce the corresponding gross loss.

Understand offsetting and residual obligations

Closing out ordinarily means entering an opposite transaction in the same contract month and quantity so the exchange offsets the position. Selling a different expiry does not close the original contract; that may create a calendar spread or roll. A partial offset leaves a residual position, so confirm the remaining contract count after execution.

Key takeaway

Close by taking the opposite side in the matching contract and quantity. Roll only when you also open a later contract; otherwise the position may remain subject to settlement or delivery.