Advanced Micro Devices Inc. (AMD) - Get Report shares were down 1.3% to $13.94 by Friday's close on even volume following a Citigroup report Thursday saying that the stock, which has seen a meteoric rise in stock price, is poised to crash as much as 70%. The firm reiterated its "sell" rating, though it did increase its price target to $5 from $4 per share.
Micron Technology Inc. (MU) - Get Report shares were down 3.3% to $29.23 on volume that already matched its daily average in afternoon trading Friday. The semiconductor sector has been plagued by volatility.
Western Digital Corp. (WDC) - Get Report shares were down 7.7% to $84.85 by Friday's close after the tech company gave a current quarter revenue forecast that was lower than expected. The company expects to generate of $5.1 billion this quarter, short of the market's $5.21 billion expectations.
Amazon shares were down 2.5% to $1,020.14 following its wide earnings miss after the closing bell Thursday. The company reported earnings of 40 cents per share, well below the market consensus of $1.42 per share for the period.
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