Amazon.com said Wednesday it may buy back up to $5 billion in stock over the coming years.
Shares rose more than 2 percent in after-hours trading on the news. The company said the program does not have a set expiration time.
Amazon said this buyback would replace a $2 billion authorization from 2010.
As of Dec. 31 it had used just $1.24 billion of that prior program.
The new buyback comes amid weakness in the stock, with shares down 28 percent from their recent high on Dec. 29.
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