77% of UK Stock Trading is High Frequency

"While high frequency trading makes up somewhere between 50% and 70% of all U.S. stock trades, the number is even higher in the UK.

Specifically, a new report by the Tabb Group shows that high frequency trading represents 77% of all UK stock trades."

(more at Washington's Blog)

(report)

It's not a 'free market', in other words.