AstraZeneca's US Stock Market Debut Could Encourage Other Companies to Leave London

Written by Emily J. Thompson, Senior Investment Analyst

Source: Reuters

Updated: Sep 30 2025

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Source: Reuters

AstraZeneca's U.S. Listing Plans: AstraZeneca plans to upgrade its listing by offering shares directly on the New York Stock Exchange while retaining its listings in London and Stockholm, aiming to attract its largest investor group from the U.S.
Impact on London Stock Market: Analysts warn that this move could lead to reduced liquidity in London, prompting other large companies to consider similar shifts, as many UK-listed firms have significant U.S. investor bases.
Reassurance for UK Economy: UK government officials expressed relief that AstraZeneca will maintain its London listing, viewing it as a positive sign for employment and growth in the UK economy amidst concerns over potential de-listing.
Market Dynamics and Future Risks: While AstraZeneca's decision is seen as a short-term positive for the London market, there are concerns that if the triple listing does not yield expected results, it may lead to a full exit from the UK market in the future.

About the author

Emily J. Thompson

Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.