Exact Sciences Corporation, headquartered in Madison, Wisconsin, provides cancer screening and diagnostic test products in the United States and internationally. Exact's Cologuard screening test, a noninvasive stool-based DNA test, is a pre-cancer screening test for colorectal cancer. The company also competes in the precision oncology market with Oncotype DX, a suite of tissue-based genomic tests for estimating recurrence risk and likelihood of benefit from chemotherapy for breast and colon cancer, and OncoExTra, a liquid-based comprehensive genomic profiling test. It is developing liquid biopsy tests for molecular residual disease, colorectal cancer screening, and multicancer screening, too.