LaBranche & Co. Inc. (: LAB) was a market maker and specialist firm on the NYSE, one of the oldest in the business at the time of its acquisition. It also operated in options, futures, and ETFs through various subsidiaries. Its stock symbol on the NYSE was LAB.
LaBranche & Co. said it signed a definitive agreement to sell its NYSE Designated Market Maker business to Barclays Capital for $25 million.
On June 29, 2011, Cowen Group completed its acquisition of LaBranche, ending the firm's independent existence.