The Goldman Sachs Group Inc. is acquiring the specialist assets of TFM Investment Group, a leading options specialist firm. Terms of the transaction were not announced.

TFM is a specialist in over 400 options classes, with operations on all four floor-based options exchanges in the United States.

Its assets will be integrated into those of SLK-Hull Derivatives LLC, which was recently formed by Goldman Sachs through the combination of Spear, Leeds & Kellogg’s and The Hull Group’s option trading businesses, and will reinforce SHD’s leading position in the U.S. options markets.