Stock market news live updates: Stock futures mixed ahead of heavy week of earnings

Stock futures were on track for a slightly higher open as investors looked ahead to a packed week of earnings, stimulus talks and congressional testimony from Covid-19 vaccine developers. Futures got a boost Monday morning after Pfizer and BioNTech reported positive early data from their Covid-19 vaccine study.

Stocks closed out last week with a choppy session, though both the S&P 500 and Dow eked out a third straight weekly advance. Tech shares lagged throughout the week, as the software stocks that had been outperforming for months gave back some gains.

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