Euronext announces December 2025 quarterly review results of the PSI®

Core Insights - Euronext announced the results of the annual review for the PSI® index, effective from December 22, 2025, with no changes in the index composition for the December 2025 quarterly review [1][2]. Company Overview - Euronext operates as a leading European capital market infrastructure, covering the entire capital markets value chain, including listing, trading, clearing, settlement, and custody [4]. - As of September 2025, Euronext's regulated exchanges host over 1,700 listed issuers with a total market capitalization of €6.5 trillion, making it a significant player in European equity trading, handling 25% of European lit equity trading [5]. Recent Developments - In November 2025, Euronext successfully acquired a majority stake in the Athens Stock Exchange (ATHEX), enhancing its pan-European market infrastructure [6].