Options on Futures Fundamentals

Rights on a listed future, not a stock option clone.

Advanced 5 min read Course 41 of 60

Course 41 of 60 in the futures hub. Options on futures give you a right tied to a futures contract. I'll go through where the contract size and multiplier come from, and why I'd learn the future first.

A Right on a Future

Buying one of these is a right to buy or sell at a set price, tied to a futures contract rather than to shares. The contract size and what a point is worth come from that future. The option's own spec says what its premium tick is, when it stops trading, and whether exercise leaves you holding the future or a cash settlement.

Stock option habits are where people get hurt. Equity options trained a lot of traders to think in blocks of 100 shares, and that number sticks. Bring the habit to an option on ES and the arithmetic is wrong from the first trade.

1. What the option is on

Start with the future underneath. ES is $50 times the S&P 500 index, with a minimum tick of 0.25 points worth $12.50. An option on ES is a right to one of those contracts, so its value moves with a $50-a-point future rather than with a block of shares.

The future also trades in hours the stock market doesn't. News can move it overnight while you're asleep, and the option feels that too. Before you think about strikes, you should be able to say what one point of the future is worth and when it trades. I check the dollars on any position with the P&L calculator before placing it.

A right on a listed future — not a stock-option clone Stock option Right on sharesEquity-style hours oftenDifferent tax / exercise habits Option on a future Right on a listed contractMultiplier trapsGlobex events still exist

2. Exercise style depends on the product

Exercise rules vary from product to product, so read them for the exact option you're trading: can it be exercised before expiry, and what are you left holding when it is? If exercise hands you the future, the premium is no longer the whole position: you are long or short that ES contract, and the futures margin applies. Delta gives you a rough sense of how big the option acts in the meantime.

Delta 0.30 on an option on one ES future acts like 0.30 of a contract. ES is $50 a point, so a 10-point move in the future is worth about 0.30 x 10 x $50 = $150 to the option, before time decay and volatility change it.

Compare that with the stock habit. Delta of 0.30 on an option covering 100 shares of a $100 stock is worth about $30 for a $1 move. Same delta number, very different dollars. The $150 is only an estimate, too, because delta itself shifts as the future moves.

Run the worst case through the stop calculator on the future itself, since that's what the option is tied to.

3. Multiplier traps

Premium on an option on a future is quoted in the future's own units, which on ES means index points. Cash is premium times the multiplier. A quote of 0.50 isn't fifty cents: at $50 a point it's $25 a contract, and a quote of 20.00 is $1,000.

The options have their own tick table, and it can differ from the future's 0.25. I'm not going to quote it here, because exchanges change these and I'd rather you read the current spec than trust a page. What doesn't change is the habit of pricing the premium in dollars before you decide it's cheap.

Premium × the future's multiplier is the cash — look it up cash ≈ premium ticks × option tick $ (product-specific) Do not assume $100 like an equity option ES options have their own tick table A 'cheap' 0.50 can still be real money Read the spec before the first long premium

4. Why people use them

People buy these for honest reasons. As long as you hold the option and do not exercise it, the most you can lose is the premium, which helps when you want exposure through an event and can't stand having a stop run. A put bought against a long future works as a hedge. Neither is free: the premium is the cost, and it can go to zero.

Write down which one you're doing before you buy. A hedge you later start calling a trade is how people end up with two losing positions instead of one. Selling premium is a different business with a different risk, and it gets its own lesson after the Greeks.

Defined risk, leverage with a cap, or a hedge — name which Defined long debit you can affordmax = premiumstill can be 100% lost Hedge collar / put on a futurebasis still existsnot magic insurance Income short premiumnext pageeasy to die

5. Why beginners should wait

My advice is to trade the future on paper, or in micros, before touching options on it. Options add time decay, volatility and exercise rules on top of everything the future already asks of you. If you can't size the future without looking things up, the option will hide your mistakes for a while and then show them all at once.

Margin comes back into it as well. The lesson on margin stress just before this one is worth rereading, because exercise or assignment can leave you holding the future, and the future's margin comes with that position.

If you cannot size the underlying future, you cannot size the option Wait until You can name tick $ of the future in your sleep.You can survive the future's ETH without drama.Then the option is a tool. Until then it is a costume.

6. Common mistakes with options on futures

The classic one is reading the quote as dollars: 0.50 on ES is $25, not fifty cents, so you're carrying fifty times what you thought. Close behind it: forgetting that the option can expire on a different date from the future underneath it, ignoring a wide bid and ask on far strikes, and copying a strategy off a stream without knowing the multiplier.

Next comes the lesson on the Greeks, where delta, theta and vega get proper treatment. Don't skip it on the way to selling premium.

Reading the option spec sheet

When I look at a new option product, I go down the spec in a set order: which futures month it exercises into, the last trading day, the premium tick and its dollar value, and whether it settles into the future or into cash. It doesn't take long, and it saves the expensive surprises.

Then I price one realistic trade on paper. What does the premium cost in dollars, what's the most I can lose, and what am I holding if it finishes in the money? If any of those answers is fuzzy, I don't trade it yet.

Before your first option on a future

  • Learn the future first: point value, tick and trading hours.
  • Multiply every premium by the future's multiplier before calling it cheap.
  • Know what exercise leaves you holding and when the option expires.
  • Write down whether it's a hedge or an event trade before you buy.

Price your first one on paper at $50 a point before any money goes on it. Educational only. Not a recommendation to buy, sell, or hold any contract or pair.