FTSE Russell is set to align its free-float requirements for UK-listed companies with those applied to international firms, marking a significant shift aimed at improving consistency across its global index framework.

The move is designed to ensure that companies listed in London are assessed under the same criteria as their international counterparts when determining eligibility and weighting within key equity indices.

By harmonising these rules, FTSE Russell aims to create a more level playing field and enhance the attractiveness of UK markets for both domestic and foreign issuers.

Free-float measures the proportion of a company’s shares that are available for public trading, and it plays a crucial role in index construction and investor allocation decisions.

Differences in thresholds between UK and overseas listings have previously been seen as a potential barrier to competitiveness.

The planned changes reflect broader efforts to modernise the UK’s capital markets and respond to evolving global standards.

Policymakers and market participants have increasingly focused on reforms that can strengthen London’s position as a leading financial centre amid intensifying international competition.

By aligning its approach, FTSE Russell is expected to simplify index inclusion criteria and provide greater clarity for investors.

The shift could also encourage more companies to consider London as a listing venue, particularly those seeking access to deep pools of capital while maintaining flexible ownership structures.

Market observers note that the development forms part of a wider trend toward regulatory convergence in global financial markets, as index providers and exchanges seek to balance transparency, accessibility, and competitiveness.

The changes are likely to influence investment flows and index composition over time, reinforcing the importance of consistent standards in an increasingly interconnected financial landscape.