Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Dean Foods (DF) upgraded to Hold from Sell at Deutsche Bank. 2. Plantronics (PLT) upgraded to Buy from Neutral at Sidoti with the firm citing attractive valuation. 3. CarGurus (CARG) upgraded to Outperform from Market Perform at JMP Securities and to Outperform from Sector Perform at RBC Capital. 4. Bristol-Myers (BMY) upgraded to Neutral from Underweight at Atlantic Equities. 5. Floor & Decor (FND) upgraded to Buy from Hold at Loop Capital with analyst Anthony Chukumba saying the company continues to post the "best relative performance in the flooring retailing industry." 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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