Virtu Financial says it plans to raise up to $314m (€284.8m) in a share sale. The company delayed its initial public offering amid a furor over high-frequency traders arising from a best-selling book release.

In today’s “rigged” US stock market, large investors such as Greenlight Capital are like “dumb tourists” led to a casino where the card games are fixed, according to Michael Lewis, whose book Flash Boys has touched off a national debate about high-frequency trading.

Trading in shares of more than 3,000 US companies listed by Nasdaq, including Google, Apple and Microsoft, was abruptly halted shortly after midday yesterday because of a technical problem, the latest black eye for the US securities trading business.