Trading term

What is European-style option?

A European-style option can only be exercised at expiry. An American-style option can be exercised on any trading day before then.

The name has nothing to do with where it trades. It's about when the owner can use it. With a European-style option, nobody can exercise early, so if you've sold one you can't be assigned before expiry.

Index options such as SPX and XSP are European-style and settle in cash. Options on stocks and ETFs, SPY included, are American-style and settle in shares.

For example

If you sell a SPY call that's in the money, the buyer can exercise it the day before SPY goes ex-dividend to collect the payout. You can't be assigned early on an SPX or XSP call.

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Why it matters to you

Early assignment can leave you holding, or short, 100 shares you didn't plan for. European-style options remove that risk, which matters most when you sell options.

⚠ Thinking you can't close a European option early

You can sell a European-style option any time the market is open. You just can't exercise it before expiry.

Frequently asked questions

Are SPY options American or European?

American. SPY is an ETF, and US options on stocks and ETFs are American-style. SPX and XSP options are European-style.

Read the full guide

DerivativesSPY vs SPX vs XSP Options: Which One Should You Trade?SPY, SPX and XSP options all track the S&P 500. We compared contract size, real spreads, fees, settlement and the 60/40 tax rule, with live quotes.9 min read

Related terms

0DTE options0DTE stands for zero days to expiration: an option that expires on the same day it's traded. S&P 500 index options now expire every weekday, so there's a 0DTE contract every trading day, and they make up most of all S&P 500 options volume.Call optionA call option is a contract giving the buyer the right — but not the obligation — to buy an asset at a fixed 'strike' price before a set expiry date. Call buyers are betting the price will rise; their risk is capped at the premium paid, while the potential profit is open-ended.Cash-secured putA cash-secured put is an options strategy where you sell a put option while setting aside enough cash to buy the stock if you're assigned. You collect the premium as income; in exchange, you agree to buy the stock at the strike if it falls there. It's a way to get paid to buy a stock you want at a lower price.Covered callA covered call is an options strategy where you own 100 shares of a stock and sell a call option against them. You collect the premium as income; in exchange, you cap your upside at the strike. It's a popular way to generate income on shares you're happy to hold or sell.
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