City watchdog plans to collect and share all available share trading data
The City regulator is set to begin gathering and disclosing all accessible data on share-trading in a bid to demonstrate that liquidity in UK public markets is not as poor as often perceived.
These plans will serve as an interim measure until the Financial Conduct Authority (FCA) releases its ‘consolidated tape’ of trading data next year, which will amalgamate data from various platforms.
“The truth is we have way more liquidity here than is often reported, and that is just silly,” Simon Walls, interim director of markets at the FCA told the Financial Times in an interview.
“We are talking to loads of parties at the moment about whether the FCA can, at a little bit of risk to ourselves, step in and just sort this out.”
Current liquidity estimates are based on the London Stock Exchange’s central limit order book, but this overlooks periodic trades at the LSE – where companies must wait until the end of a scheduled auction period for the transaction to be finalised – as well as trading on dark pools, as reported by City AM.
Dark pools are private trading venues that enable large trades to be executed without publicly revealing information before the trade is completed, helping to minimise the impact on the broader market.
From January to September last year, 270m transactions were logged in the LSE’s data, but the FCA believes the total number of trades could be four times larger.
Numerous companies have cited the UK’s perceived lack of liquidity as a reason for changing their listing. For instance, in 2024, Flutter Entertainment stated it could tap into “the world’s deepest and most liquid capital markets” in New York, while Tui revealed that less than a quarter of its share trading occurred in London compared to Frankfurt, where it also has a listing.
“People in the market know this (the under-reporting) is a problem,” said Walls. “But it does dog us because sometimes when an issuer has historically chosen to move from the UK to the US, one of the thoughts is that liquidity is lower in the UK and often it’s not true.”
Over the past year, the FCA has been distributing a ‘myth-busting’ document asserting that actual liquidity across FTSE indices is on par with the S&P 500 and the Nasdaq 100.
This initiative is the latest effort in recent years to rejuvenate the UK’s public markets following a challenging period. In 2024, approximately 88 firms either completely delisted or shifted their primary listing away from the UK.








