Why Is Western Digital ( $WDC ) Stock Down -4.92% Today? (Find out why any stock moved today on Tickeron.) Shares of WDC fell 4.92% to $425.19, down from a prior close of $447.18. The decline was driven by a reassessment of AI infrastructure spending after leading AI executives called for a slower pace of model development. blockstack:native $NTAP $P $ANET $QMCO