The London Stock Exchange is shrinking, and the pace is picking up. The number of companies listed on the LSE has dropped from 2,429 in 2015 to just 1,534 as of May 2026, a decade low that reflects a sustained exodus of firms drawn to US capital markets, private equity buyouts, and a general sense that London’s best days as a financial listing venue might be in the rearview mirror.

More than 30 companies have left or announced plans to leave this year alone. Among the departures: Schroders, the storied British asset manager, agreed to a £9.9B acquisition by US-based Nuveen in February 2026. Budget airline easyJet has also agreed to a US takeover that will see it delist from London. Flutter Entertainment, the gambling giant, completed its own LSE exit on August 3, 2026, shifting its primary listing to New York.

Why companies keep leaving

London-listed companies have consistently traded at lower valuations than their US-listed peers. That gap makes them irresistible targets for foreign acquirers and private equity firms, who can swoop in, buy at a relative discount, and either take companies private or relist them somewhere with deeper capital pools.

The UK market also suffers from a structurally smaller domestic investor base compared to the US. British pension funds, which once served as reliable anchors for domestic equities, have spent years rotating out of UK stocks. The result is thinner trading volumes, less analyst coverage, and a self-reinforcing cycle: fewer investors mean lower valuations, which drive more companies to leave, which further reduces the appeal for remaining investors.