Check out the companies making headlines before the bell:

AstraZeneca – Britain became the first country to approve the drug maker’s Covid-19 vaccine, setting the stage for a rollout of millions of doses. The vaccine is not yet approved in the U.S., with the FDA still to review large-scale trials. The stock was up 2% at around 7:40 a.m. ET.

Intel – The chip maker’s shares remain on watch for a second day, following news that hedge fund Third Point had taken a significant stake in Intel and urged management to explore strategic alternatives. The news sent the shares up about 5% in Tuesday’s trading. Shares were fractionally lower at around 7:40 a.m. ET.

Fox Corp. – The company’s Fox News Channel topped news and

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