Futures Option Contract Specs and Multipliers

Reviewed by Leon Moyer - Published October 9, 2026 - Last reviewed October 9, 2026

A futures option's contract specification is the exchange's official description of the product: what one contract covers, how its price is quoted, the smallest allowed price change (the tick), which months are listed, and when trading ends. Reading it is how you turn a quoted premium into dollars.

With stock options, nearly every standard contract covers 100 shares, so a premium of 2.00 means $200. Futures options have no single rule. Each one inherits the size of its underlying futures contract, and those sizes were set product by product. The same 2.00 can cost $100, $200 or $2,000 depending on what you are trading.

What is the multiplier on a futures option?

The multiplier (or contract unit) is the amount of the underlying covered by one contract, and it converts a per-unit price into dollars. For futures options it is usually the underlying futures contract's size. A few examples from CME Group's published specifications:

Sources: CME Group's gold options, E-mini S&P 500 options and crude oil options contract specs. Exchanges also list smaller "micro" versions of many products with their own, smaller multipliers, so always confirm which contract you are looking at.

How do you read a futures option contract spec?

A typical CME contract specs page lists these fields. Each one answers a practical question.

1. Contract unit. How much one contract covers. This is your multiplier.
2. Price quotation. The unit the premium is quoted in: dollars per ounce, cents per bushel, index points.
3. Minimum price fluctuation. The tick size, and often its dollar value. Gold options, for example, are listed with a minimum fluctuation of $0.10 per troy ounce, which is $10 on 100 ounces.
4. Listed contracts. Which option months and weeks exist, and which futures month each one is on.
5. Exercise style. American options can be exercised on any business day up to expiration; European options only at expiration. The CFTC glossary defines both (CFTC glossary). Both styles exist in futures options, sometimes on the same underlying.
6. Termination of trading. The last day and time the option trades, which is often well before the futures contract month.
7. Settlement method. What exercise produces. For most futures options it is a position in the underlying futures contract.

The tick value follows from two of these fields: tick value = minimum price fluctuation x contract unit. For WTI crude oil options, CME Group lists a $0.01 per barrel tick on 1,000 barrels, so one tick is $10.

How do you turn a futures option quote into dollars?

Every dollar figure for a futures option comes from one formula: dollars = quoted price x multiplier x number of contracts. Break-even is worked out in the quote's own units first, then converted.

Now compare a quote of 2.00 on three products. On the gold option it costs $200. On the E-mini S&P 500 option it costs $100. On the crude oil option it costs $2,000. The number on the screen looks the same; the money at risk differs twentyfold.

Why does contract size matter so much?

Because it scales everything: the premium you pay, the size of each tick, how much a futures position gained or lost each day, and the margin a seller has to post. Two common mistakes come from skipping the spec.

• Applying the stock-option habit of x100. That is right for gold and wrong for most other products. An E-mini quote multiplied by 100 instead of 50 doubles your estimate of the risk; a crude oil quote multiplied by 100 instead of 1,000 understates it tenfold.
• Confusing the option's cost with the contract's notional value. One gold futures contract at $2,500 an ounce represents $250,000 of gold. The $3,000 call on it is not $250,000 of risk to the buyer, but if it is exercised, the resulting futures position is.

Buying a futures option still risks only the premium. Selling one does not.