Check out which companies are making headlines after the bell Thursday:
Advanced Micro Devices - The semiconductor company gained in after-hours trading after it said it would reduce its workforce by 7 percent and tallied third-quarter results that illustrated ongoing pressures in its sales to PC makers.
Capital One Financial - The credit-card issuer fell in after-hours trading after posting third-quarter results that disappointed investors.
Goldman Sachs Group - The brokerage declined in after-hours trading after Reuters cited three sources familiar with the situation in reporting Goldman to be in talks to acquire IndexIQ, an exchange-trade fund provider.
Google - Shares of the search engine dropped in after-hours trading after the company reported third-quarter earnings per share of $6.35, excluding items, on $16.52 billion in revenue, compared to estimates of EPS of $6.53 on $16.57 billion in sales.
Sarepta Therapeautics - The drugmaker's shares jumped more than 11 percent in extended trading after the company announced that its Ebola and Marberg drugs had no ill side effects when tested on humans.
Xilinx - The developer of programmable devices posted second-quarter earnings per share of 62 cents on revenues of $604 million, versus estimates of EPS of 66 cents on $602 million in sales. Its shares gained in after-hours trade.
—By CNBC's Kate Gibson
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