The company blew past even the most optimistic of Wall Street estimates for both revenue and earnings.
Yahoo's 384 million shares of Alibaba, valued at $40 billion, will be wrapped into an independent entity, SpinCo.
Amgen on Tuesday reported higher-than-expected fourth-quarter profit.
The telecom giant posted fourth-quarter earnings of 55 cents per share, up from 53 cents a share in the year-earlier period.
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