Paris Listed Stock Options (American Style) 
One option normally equals rights over 10 underlying shares [1]
10 at contract initiation [1]
Euros per share
Central Order Book: € 0.01 (€ 0.10 per contract)

Large-in-Scale Facility: € 0.0001 (€ 0.001 per contract)
American style
Holders of long positions are entitled to exercise their options before the expiration date.
Weekly; 1, 2, 3 monthly; 6, 9, 12 months quarterly (of the March, June, September, December cycle); 18, 24, 30, 36 months half yearly (of the June, December cycle) and 48, 60 months yearly (of the December cycle) or 1, 2, 3 monthly; 6, 9, 12 months quarterly (of the March, June, September, December cycle) only.

See the document "Expiry Months Listed Per Class" in "Related documentation" to find out which expiry months are listed per class.
See the document "Series Introduction Policy for Individual Equity Option Contracts" in "Related documentation" to find the series introduction policy.
New expiry months are available for trading on the first business day after the expiry of a maturity.
Large-in-Scale Facility. 
See the “LIS Thresholds” document for the minimum size thresholds.
Paris
Trading ceases on the third Friday of the expiry month. In the event that the third Friday is not a business day, the Last Trading Day shall normally be the last business day preceding the third Friday.
Exercise is possible until 19:45 CET/ CEST on any business day, including third Fridays [2]
Physical delivery of 10 shares (or other such number of shares as determined by the terms of the contract) through the settlement system of Euronext Clearing.
Two business days after the exercise day.
Payable in full by the buyer on the business day following a transaction.
Euronext Clearing 
Central Order Book
Call Phase: 07:30 - 09:01 CET/CEST
Continuous Trading: 09:01 – 17:30 CET/CEST

Large-in-Scale Facility 
07:30 – 18:30 CET/CEST
 
Optiq
Central order book applies a Price Pro Rata trading algorithm. With this algorithm priority is given to orders at the best price (highest for a bid, lowest for an offer). If there are several orders at this best price, equal priority is given to every order at this price and incoming business is divided among these orders in proportion to their volume.
17 November 2025
 
[1] Apart from exceptions or temporary adjustments for corporate actions. See the document "Unusual Contract sizes" in "Related documentation" to find an overview of non-standard contract size classes.
[2] On the Last Trading Day, in-the-money options are automatically exercised, unless contrary instructions are received from the client/member. Please check the exact exercise rules with your broker.
In the United States these products may only be offered and sold to prescribed entities under specified conditions.