Mayer Brown·SECURITIES / CAPITAL MARKETS

FTSE UK Indices to Lower Free-Float Requirement

Forthcoming changes to the FTSE UK Index Series eligibility rules will lower the minimum free-float requirement, potentially opening the indices to a wider range of companies.

FTSE Russell is set to change the eligibility criteria for its UK Index Series by lowering the minimum free-float percentage required for a company's shares. The move is designed to make London's public markets more attractive and accessible. This change is significant for companies with large, concentrated ownership bases, such as founder-led businesses or those backed by private equity or sovereign wealth funds, which may have previously struggled to meet the threshold. Inclusion in a major FTSE index can substantially boost a company's market profile, trading liquidity, and access to capital from institutional and index-tracking investors. For corporate and capital markets counsel, this development alters the strategic calculus for advising clients on IPOs and listing venues, potentially making a London listing more viable for a new class of issuers. Lawyers should watch for the final rule details and implementation date and advise relevant clients to reassess their capital-raising and listing strategies in light of the new flexibility.

ftseuk-listing-rulescapital-marketsipofree-floatlondon-stock-exchange
Read the original firm alert → Tuesday, September 1, 2026

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