Navinder Sarao, the British trader accused of helping provoke the 2010 Wall Street "flash crash", is due to appear in a London court on Wednesday after failing to raise the bail needed to secure his release from custody, a court official said.
Sarao, 36, who traded from his parents' modest home in west London, has been charged by the US Justice Department with wire fraud, commodities fraud and market manipulation over a period of several years but told a hearing last week he would fight extradition.