EURONEXT_Registration_Document_2017

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PRESENTATION OF THE GROUP

Description of the Business

Algorithmic Execution  Choose third party algos fromTier 1 Bank providers or proprietary FastMatch algo tools;  Access bespoke algos from FastMatch proprietary suite;  Reduce market impact and remove double hitting with dedicated execution routing;  Avoid information leakage and signaling risk with full control of underlying liquidity pool;  Minimize integration by accessing bespoke FastMatch liquidity via existing platforms;  Post trade forward adjustments provided by the individual Tier 1 bank algo provider. Analytics  Comprehensive maker / taker reporting suite showing metrics on all transactions;  Automated TCA generated for proprietary FastMatch algo and third party bank algo execution;  Configurable post trade attribution reports tailored for individual requirements. Euronext continued in 2017 several new initiatives launched during 2016 to further strengthen the resilience of Euronext’s core cash business. In Equities, its competitive position has been enhanced due to evolution in the blue chip liquidity scheme, a new fee scheme for non-member proprietary flow, a new best execution service for retail investors (Best of Book) and new incentives embedded in the agency tariff to attract incremental flow from trading members. Euronext has re-positioned both the equity and warrants business to ensure its offering to local members in Euronext’s home markets is attractive and that flow from the local client community is either retained or repatriated. These initiatives enable Euronext to continue enhancing execution quality available on Euronext’s markets which is key to add value to clients and to compete effectively. Advanced Pricing Strategy During 2017, Euronext continued to deploy its segmented pricing strategy to optimize yield and market share. Specific fees were introduced for retail orders, enhancements were made for formal electronic liquidity provision and Euronext rendered its entire fee grid compliant with MiFID II with minimum disruption for customers. Best of Book Service for Retail Best Execution In 2017, Euronext rolled out its new best execution service for retail orders. In partnership with dedicated liquidity providers, Best of Book offers price improvement in the central order book for retail brokers. This helps ensure best execution for brokers executing orders on behalf of retail clients, in a way that ensures compliance and that the end investor achieves an optimum result. The service promotes and strengthens the diversity of Euronext’s order book to the benefit of the whole market. 1.3.4.2 Cash derivatives and spot FX markets – Recent Developments Cash Trading

New Functionality In June 2017, following consultation with the small and mid-cap trading community, Euronext implemented important changes to functionality for stocks trading in auction mode. A harmonised trading pattern consisting of two auctions per day was introduced. Furthermore, the trading at last phase for these stocks was extended to allow for extended trading at the auction price. This resulted in an uplift in volumes and liquidity on small and mid-cap stocks. Finally, the randomization of the auction time was deployed on all securities (previously limited to stocks trading in continuous mode). Euronext Block: New Pan-European Block Trading Service The first brokers connected in the course of the fourth quarter of 2017 and the first trades have taken place on the platform, delivering superior execution quality in sizes significantly above the minimum thresholds defined by regulation. Member connectivity will accelerate throughout 2018 and new functionalities will be rolled out specifically for small and mid-cap trading. A new liquidity scheme was also launched in fixed income to improve execution quality. In 2017, the trading fee scheme was reviewed to meet MiFID II’s obligations, to improve market quality and reduce gaming behaviors, and to incentivize members increasing their turnover. A couple of new liquidity providers were on-boarded in 2017 following the implementation of a new liquidity provision scheme end 2016. Fixed Income Regulated Markets remain active despite the low interest rate environment. Euronext Synapse MTF As part of ‘Agility for Growth’, in December 2017, Euronext launched Euronext Synapse – an innovative MTF in partnership with Algomi – a leading FinTech company in the fixed income space, to create a unique Pan-European trading venue, utilizing best-in-class technology and data (1) . Derivatives Trading On the financial derivatives markets, Euronext continued to reposition and expand its franchise. New products launched in 2017 included:  twenty seven new Individual Equity Options, including 10 new European-style options, 2 new weekly options and 15 option contracts on German underlying;  sixty Single Stock Dividend Futures;  five Spotlight Options. Other enhancements included the introduction of longer expiries (to six years) on CAC 40 Dividend Index Futures, following a rapid volume growth during 2017. Euronext also developed the solution for the provisioning of PRIIPs Key Information Documents, which complies with EU Regulation requiring the manufacturer to provide a Key Information Document (“KID”) for every packaged product from2018. Fixed Income Trading Fixed Income Regulated Markets

(1) See above.

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www.euronext.com

2017 REGISTRATION DOCUMENT