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Stocks decline on Tuesday morning as U.K. Prime Minister Theresa May outlines long-awaited plans for Britain's exit from the European Union.
Donald Trump is already moving markets -- with his tweets. As the president-elect reveals plans for his first 100 days, big U.S. banks could get a windfall from heightened trading.
Here are Tuesday's top research calls, including upgrades for Disney, Continental Resources and Agios Pharmaceuticals, and downgrades for Chipotle, Brinker International and J.P. Morgan.