DexCom, Inc. reported preliminary unaudited revenue guidance for the fourth quarter and year ended December 31, 2016. The company achieved preliminary, unaudited revenue of approximately $168 million for the fourth quarter ended December 31, 2016, an estimated increase of 28% over the fourth quarter of 2015. For fiscal 2016, total preliminary, unaudited revenue is expected to be $570 million, an estimated increase of 42% over 2015. For 2017, the company currently anticipates total revenue in the range of $710 to $740 million, reflecting estimated growth of 25% to 30% over 2016. Gross margin is expected to range from 67% to 70% for 2017.