S&P 500 Movers: FFIV, VRTX
March 29, 2017 at 10:17 AM EDT
In early trading on Wednesday, shares of Vertex Pharmaceuticals (VRTX) topped the list of the day's best performing components of the S&P 500 index, trading up 23.2%. Year to date, Vertex Pharmaceuticals registers a 49.9% gain.