London Stock Exchange Group plc Interim results for six months ended 30 June 2026

LSEG delivered a record first half performance, driving growth across all of our businesses. Our LSEG Everywhere data strategy continues to make great progress: we are the partner to help customers address the value and challenges of AI in financial services. ✓ Record revenue growth: up 8.4% to £4.8bn on a constant currency basis ✓ EBITDA margin expansion: 52.7%, reflecting 120bps of underlying improvement ✓ Significant shareholder returns: £2.1bn returned via buybacks in H1 2026 ✓ Workspace AI Search adoption: over 17,000 users Learn more about our performance: https://lseg.group/4fvHlco hashtag#LifeatLSEG hashtag#FinancialResults LSEG (London Stock Exchange Group) is a diversified international markets infrastructure business —earning our clients’ trust for over 300 years. That legacy of customer-focused excellence ensures that you can rely on our expertise in capital formation, intellectual property and risk and balance sheet management. As global leaders in financial indexing, benchmarking and analytic services, we offer unrivalled access to international capital markets. Our high-performance technology solutions enable companies worldwide to access funds for growth and development. And with our Data & Analytics, Capital Markets and Post Trade divisions, we provide a comprehensive, integrated suite of trusted financial market infrastructure services that help our customers pursue—and achieve—their ambitions. That’s how we make a difference— ensuring people can meet their potential—worldwide. Follow us on LinkedIn (linkedin.com/company/london-stock-exchange-group) and Twitter (@LSEGplc).