Quantbot Technologies is a quantitative firm founded by employees who were previously part of the statistical arbitrage proprietary trading group (QSA) of Merrill Lynch & Co .

[10] In December 1999, the New York Stock Exchange (NYSE) fined Schonfeld and one of its officers $1.5 million for day trading violations.

[5][11][13] It was reported by Forbes that Schonfeld has been fined at least twice during 2000 to 2005, by the National Association of Securities Dealers for violation of rules on the Nasdaq Small-order execution system.

[5][10][14] In 2015, Schonfeld announced that it would accept capital from investors outside the firm and changed its structure to a Multi-strategy hedge fund.

In 2018, Schonfeld acquired Folger Hill Asset Management, a hedge fund founded by Sol Kumin.