10 fast-growing companies in the hottest small-cap stock sector By: MarketWatch May 21, 2018 at 12:50 PM EDT These companies are screened for increasing sales and improving profit margins. Read More >> Related Stocks: Computer Programs Corcept Therapeutics Cryolife Hms Hlds Cp Inogen Inc Ligand Pharm Mimedx Group Inc Neogen Corp Supernus Pharm The Ensign Group IN