Editing Futures contract (section)

===Margining===
{{Further|topic=Margin|Margin (finance)}}

Futures are [[#Margin|margined]] daily to the daily [[spot price]] of a forward with the same agreed-upon delivery price and the underlying asset (based on ''[[mark to market]]''). Forwards do not have a standard. More typical would be for the parties to agree to true up, for example, every quarter. The fact that forwards are not margined daily means that, due to movements in the price of the underlying asset, a large differential can build up between the forward's delivery price and the settlement price, and in any event, an unrealized gain (loss) can build up.<ref>{{Cite web |title=hanghoaphaisinh247 |url=https://hanghoaphaisinh247.vn/ |access-date=2025-04-29 |language=en}}</ref> Again, this differs from futures which get 'trued-up' typically daily by a comparison of the market value of the futures to the collateral securing the contract to keep it in line with the brokerage margin requirements. This true-ing up occurs by the "loss" party providing additional collateral; so if the buyer of the contract incurs a drop in value, the shortfall or variation margin would typically be shored up by the investor wiring or depositing additional cash in the brokerage account. In a forward though, the spread in exchange rates is not trued up regularly but, rather, it builds up as unrealized gain (loss) depending on which side of the trade being discussed. This means that entire unrealized gain (loss) becomes realized at the time of delivery (or as what typically occurs, the time the contract is closed prior to expiration)—assuming the parties must transact at the underlying currency's spot price to facilitate receipt/delivery. The result is that forwards have higher [[credit risk]] than futures, and that funding is charged differently.

The situation for forwards, however, where no daily true-up takes place, in turn, creates '''credit risk''' for forwards, but not so much for futures. Simply put, the risk of a forward contract is that the supplier will be unable to deliver the referenced asset, or that the buyer will be unable to pay for it on the delivery date or the date at which the opening party closes the contract. The margining of futures eliminates much of this credit risk by forcing the holders to update daily to the price of an equivalent forward purchased that day. This means that there will usually be very little additional money due on the final day to settle the futures contract: only the final day's gain or loss, not the gain or loss over the life of the contract. In addition, the daily futures-settlement failure risk is borne by an exchange, rather than an individual party, further limiting credit risk in futures.

'''Example:''' Consider a futures contract with a $100 price: Let's say that on day 50, a futures contract with a $100 delivery price (on the same underlying asset as the future) costs $88. On day 51, that futures contract costs $90. This means that the "mark-to-market" calculation would require the holder of one side of the futures to pay $2 on day 51 to track the changes of the forward price ("post $2 of margin"). This money goes, via margin accounts, to the holder of the other side of the future. That is the loss party wires cash to the other party.

A forward-holder, however, may pay nothing until settlement on the final day, potentially building up a large balance; this may be reflected in the mark by an allowance for credit risk. So, except for tiny effects of convexity bias (due to earning or paying interest on margin), futures and forwards with equal delivery prices result in the same total loss or gain, but holders of futures experience that loss/gain in daily increments which track the forward's daily price changes, while the forward's spot price converges to the settlement price. Thus, while under [[mark to market]] accounting, for both assets the gain or loss [[accrual|accrues]] over the holding period; for a futures this gain or loss is realized daily, while for a forward contract the gain or loss remains unrealized until expiry.

With an exchange-traded future, the clearing-house interposes itself on every trade. Thus there is no risk of counterparty default. The only risk is that the clearing house defaults (e.g. become bankrupt), which is considered very unlikely.{{Citation needed|date=April 2022}}