Stocks Are Mixed as Oil Stabilizes; Yahoo!'s Mayer to Resign From Board

U.S. stocks were mixed Tuesday. Investors are awaiting President-elect Donald Trump's first news conference since the election, which will be held Wednesday.

Meanwhile, Yahoo! (YHOO) shares were in focus after the company announced that CEO Marissa Mayer will step down from the board of directors following the close of the company's sale to Verizon Communications (VZ) - Get Report . The remainder of the company, which includes Yahoo!'s stake in Alibaba (BABA) - Get Report and Yahoo! Japan, will be renamed Altaba.

Valeant Pharmaceuticals (VRX) shares gained steam after the company agreed to sell three of its skincare brands to L'Oreal (LRLCY) for $1.3 billion. It's also selling its Dendreon cancer division to Sanpower for $820 million.