AMD’s stock turns sharply lower as ethereum prices extend selloff By: MarketWatch July 13, 2017 at 17:46 PM EDT AMD’s stock erased early gains to close sharply lower on heavy volume, as it mirrored the reversal seen in prices of bitcoin rival Ether. Read More >> Related Stocks: Adv Micro Devices NDX NVIDIA Corp PHLX Semiconductor Sector Index Standard & Poors 500 TECHNOLOGY