Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Cigna (CI) upgraded to Conviction Buy from Buy at Goldman with analyst Matthew Borsch saying saying shares are undervalued and sees upside potential in capital redeployment capacity. 2. Exelon (EXC) upgraded to Buy from Hold at Deutsche Bank with analyst Jonathan Arnold saying the company is a "cheap play on regulated assets with catalysts." 3. UnitedHealth (UNH) upgraded to Buy from Hold at Argus with the firm saying it thinks that the company's decision to exit the Affordable Care Act exchanges next year will boost its Earnings Per Share in 2017, and it thinks that the outlook for the company's Optum businesses is "favorable." 4. Sherwin-Williams (SHW) upgraded to Buy from Outperform at CLSA with analyst Nils-Bertil Wallin citing valuation and sustainable long-term growth. 5. Viacom (VIAB) upgraded to Neutral from Underweight at Atlantic Equities. 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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