CareDx Inc. announced earnings guidance for the fourth quarter and full year ended December 31, 2020. For the quarter, the company expected preliminary revenue to be between $58.4 million and $58.6 million, an increase of approximately 63% compared with $35.8 million in the fourth quarter of 2019. For the year, the company expected preliminary revenue to be between $191.9 million and $192.1 million, an increase of approximately 51% compared with $127.1 million in 2019.