UK Equity Trading Volumes Diluted by Previous Trade Reprints
Only 65% of turnover in the UK, Europe’s largest equity market, is actually meaningful and executable liquidity, with 35% consisting of ‘noise’, or reprints of already already-conducted trades. According to the Tabb Group in ‘Breaking Down the UK Equity Market: Executable Liquidity, Dark Trading, High Frequency and Swaps’, cash trading is further diluted by a plethora of execution channels, as well as alternative products, such as contracts-for-difference (CFD), and the true size of the investor market is masked by high-frequency trading.
The study sought to achieve five objectives:
As a result, Tabb estimates that while OTC-reported turnover accounts for 45% of the market, less than a quarter of it is executable. The balance is in fact comprised of reprints of already-traded turnover with 72% of executable liquidity being traded on the lit order book of an exchange or multilateral trading facility (MTF). Meanwhile, dark trading accounted for 11% of executable turnover.