Exact stock surges as changes to Pfizer's sales agreement a 'positive,' analyst says

Shares of Exact Sciences Corp. rallied 8.0% in afternoon trading Wednesday, after the molecular diagnostics company said it taking over the selling of its Cologuard at-home colon cancer screening test from Pfizer Inc. , and said it was discussing with Pfizer "material changes" to their promotion agreement. The company said it learned in late August that Pfizer cut the sales positions supporting its business tasked with selling Cologuard, so Exact offered those displaced sales...