What is options contract?

A derivative giving the buyer the right, but not the obligation, to buy or sell an asset at a set price before or at a set date.

Calls carry the right to buy and puts the right to sell. The asymmetry between the two sides is the defining feature: the buyer pays a premium up front and can lose no more than that premium, while the seller collects the premium and takes on open-ended obligation. That is why selling options requires margin and buying them does not.

Crypto options trade on a small number of venues and are far less liquid than perpetual futures, so spreads are wide. Where they are available at all is heavily jurisdiction-dependent, and in several countries they are not offered to retail customers.

How it works

An option is defined by four things: the underlying asset, the strike price, the expiry date, and whether it is a call or a put. Crypto options are usually cash-settled in a stablecoin or the underlying, and European-style, meaning exercise happens only at expiry rather than at any time.

The premium has two components. Intrinsic value is what the option would be worth if exercised now, which is zero unless the strike is already favorable. Time value is everything else, and it decays toward zero as expiry approaches. That decay is relentless and accelerates near the end, which is why a buyer can be right about direction and still lose.

The dominant input to time value is implied volatility, the market's expectation of how much the asset will move. Options get more expensive when the market expects turbulence, so buying protection is priciest exactly when you most want it.

Selling is a different business. A covered call, selling a call against coins you already hold, caps your upside in exchange for premium. An uncovered short call has no cap on the loss at all, which is why venues require margin and why it is not a beginner position.

Example

Illustrative call purchase. You buy a call with a strike of $70,000 expiring in 30 days, paying a premium of $2,000 for one unit of exposure. The asset is at $65,000 today.

At expiry, if the asset is at $69,000, the option is worthless and you lose the $2,000, despite the price having risen $4,000. If it is at $71,500, the option is worth $1,500 and you still lose $500 overall. You break even at $72,000, which is the strike plus the premium, and only above that do you profit. The direction was right in all three cases.

Why it matters when you buy

For most buyers the relevance is indirect. Options pricing is where the market's expectation of volatility becomes visible, and that expectation shows up in spot conditions as wider spreads and thinner books. If you are considering an options venue, availability in your jurisdiction is the first filter, recorded at the exchange directory and per country at the jurisdiction pages.

Related terms

• strike price — the price the right is set at
• implied volatility — the dominant pricing input
• derivatives — the wider category
• futures — the obligation-on-both-sides alternative
• margin — what selling options requires
• perpetuals — the more liquid crypto derivative

Questions

Can I lose more than I paid for an option?

Not as a buyer. Your maximum loss is the premium. As a seller, losses can far exceed the premium received, which is the asymmetry at the heart of the product.

Why did my option lose value when the price went my way?

Time decay and falling implied volatility can outweigh a small favorable move. An option needs the move to be large enough and fast enough to beat both.

Are crypto options available everywhere?

No. Availability is limited by venue and by jurisdiction, and several regulators restrict or prohibit retail access to crypto derivatives entirely.