Options

An option is a contract between a buyer and a seller (also called the writer). The buyer pays a premium and gets the right to buy or sell an underlying asset, such as BTC or ETH, at a fixed price on or before a fixed date. The seller collects the premium and takes on the obligation to settle if the buyer exercises. On crypto exchanges, options are mostly used to hedge holdings, to bet on price direction with a capped loss, or to trade volatility itself.

How crypto options work

Every option is defined by a few parameters:

• Underlying: the asset the option tracks, usually BTC or ETH, sometimes SOL, XRP or other large coins.
• Call or put: a call profits when the price rises above the strike, a put profits when it falls below.
• Strike price: the price at which the option can be exercised.
• Expiry: the date and time the contract ends. Exchanges list daily, weekly, monthly and quarterly expiries.
• Premium: the price of the option, paid by the buyer to the seller.

Most crypto options are European style, meaning they can only be exercised at expiry, and cash settled: no coins change hands, the exchange simply credits the difference between the settlement price and the strike. Buyers can still close a position early by selling the option back on the order book.

An option's status relative to the market price is described as:

An OTM option at expiry is worthless. The premium of any option is made of intrinsic value (how far ITM it is) plus time value, which shrinks as expiry approaches and rises when implied volatility is high.

Why traders use options

• Hedging: a holder of BTC can buy puts to set a floor under the portfolio. If the price drops, the put gains value and offsets the loss.
• Defined-risk speculation: an option buyer can never lose more than the premium paid, unlike a leveraged futures position that can be liquidated.
• Leverage: a small premium controls exposure to a much larger notional amount, so percentage gains and losses on the premium are large.
• Income: sellers collect premium, for example by selling covered calls against coins they already hold.
• Volatility trading: strategies such as straddles and strangles profit from big moves in either direction, or from calm markets if sold.

Risks and limits

• Premium loss: most short-dated OTM options expire worthless. Buyers need the move to happen, and soon enough.
• Time decay: an option loses value every day, all else equal. Being right on direction but late still loses money.
• Seller risk: selling a call without holding the coin carries theoretically unlimited loss. Sellers must post margin and can be liquidated.
• Complexity: pricing depends on implied volatility and the "Greeks" (delta, gamma, theta, vega). Beginners often misread how these move the premium.
• Liquidity: outside BTC and ETH, order books can be thin, with wide bid-ask spreads that make entering and exiting expensive.
• Access: options are derivatives, and many jurisdictions restrict or ban them for retail users. Availability often differs between an exchange's global site and its regional entities.

What to check when comparing exchanges

• Underlyings and expiries: which coins are covered and how many strikes and dates are listed.
• Settlement currency: USDT-margined options settle in stablecoins, coin-margined (inverse) options settle in BTC or ETH, which adds exposure to the coin's price.
• Fees: trading fees are usually a percentage of the underlying notional, capped at a share of the premium (often 10% to 12.5%). Check exercise or settlement fees too.
• Margin model: whether sellers get portfolio margin that nets options against spot and futures, or simple per-position margin.
• Tools: option chains with implied volatility and Greeks, strategy builders, block trading or RFQ for large orders.
• Liquidity: open interest and spreads on the strikes you would actually trade.
• Eligibility: whether options are offered to users in your country, and what knowledge tests or KYC levels are required.

Options vs futures

Futures oblige both sides to settle at the agreed price, so losses are open-ended and positions can be liquidated. Options give the buyer a right without an obligation, so the buyer's maximum loss is the premium. If you only want to own the coin, spot trading is simpler. A demo account is a low-cost way to learn how premiums react to price and time before risking funds.