Sir Richard Branson poses outside the New York Stock Exchange (NYSE) ahead of Virgin Galactic (SPCE) trading in New York, U.S., October 28, 2019.

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Wall Street analysts upgraded a bunch of stocks on Tuesday as the market showed signs of a turnaround. The upgraded stocks include, Nvidia, Tesla, Virgin Galactic, Zillow, and more.

Here are the biggest calls on Wall Street on Tuesday: