The Knight Capital Group was an American global financial services firm engaging in market making, electronic execution, and institutional sales and trading.

Initially, Knight Trading group had multiple offices located in the United States and in other cities around the world.

[11] On August 1, 2012, Knight Capital caused a major stock market disruption leading to a large trading loss for the company.

The incident happened after a technician forgot to copy the new Retail Liquidity Program (RLP) code to one of the eight SMARS computer servers, which was Knight's automated routing system for equity orders.

[12] When released into production, Knight's trading activities caused a major disruption in the prices of 148 companies listed at the New York Stock Exchange.

[13][14] On August 5, the company raised around $400 million from half a dozen investors led by Jefferies in an attempt to stay in business after the trading error.

[15] The financing would be in the form of convertible securities, bonds that turn into equity in the company at a fixed price in the future.

[16] The incident was embarrassing for Knight CEO Thomas Joyce, who was an outspoken critic of Nasdaq's handling of Facebook's IPO.