StoneX Group

RANK383

This brokerage and commodity trading services company, which recently changed its name from INTL FCStone, had a record year in 2019, thanks in part to a jump in interest income driven by a flurry of fixed-income trading activity. Revenue increased by 19%, helped by a handful of acquisitions of payments and securities companies. The company's profits, meanwhile, jumped by more than 53% from its 2018 tally, helped along by insurance proceeds that let it recover some losses in its physical coal business.