Trader BGC brings in Davina McCall, Mark Cavendish, and others to raise money in memory of 9/11
BGC gives its global revenues on the day to over one hundred charities worldwide, with celebrities taking to the trading floor in support.
Since inception, the charity drive has raised around $116 million (£87.4 million) for charities around the world and celebrities as diverse as rapper 50 Cent and Prince Harry have tried their hands at being a stock broker for the morning.
Monday markets BGC's 15th charity day. Here is who turned up to support: