Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Royal Dutch Shell (RDS.A, RDS.B) upgraded to Buy from Hold at Deutsche Bank and HSBC. 2. KB Home (KBH) upgraded to Overweight from Equal Weight at Barclays with analyst Matthew Bouley saying his firm's spring agent survey confirmed that housing fundamentals have improved and stabilized. 3. Becton Dickinson (BDX) upgraded to Overweight from Equal Weight at Barclays with analyst Kristen Stewart saying the pullback in the shares since the FDA update on drug-coated balloons on March 15, coupled with the resetting of expectations following the company's Q2 results, provides an opportunity for investors. 4. Merck (MRK) upgraded to Overweight from Neutral at Atlantic Equities. 5. Bausch Health (BHC) upgraded to Neutral from Underweight at JPMorgan with analyst Chris Schott saying while a number of challenges remain in the story given the company's high leverage and controversial Xifaxan loss of exclusivity, its EBITDA is "clearly stabilizing and should begin to grow from here." This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage,
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