GHDX - Genomic Health +7.9% on move to SmallCap 600 July, 23 2019 05:43 PM Genomic Health Inc. Genomic Health (NASDAQ:GHDX) is up 7.9% after hours alongside news that it's joining the S&P SmallCap 600 index.More news on: Genomic Health, Inc., Electronics for Imaging, Inc., Healthcare stocks news, Tech stocks news, Stocks on the move Read more ...