Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Owens Corning (OC) upgraded to Buy from Neutral at BofA/Merrill and to Neutral from Sell at Seaport Global. 2. Grifols (GRFS) upgraded to Overweight from Neutral at JPMorgan with analyst James Gordon saying sales growth and margin expansion will drive a re-rating in the shares. 3. Arch Capital (ACGL) upgraded to Buy from Hold at Deutsche Bank with analyst Joshua Shanker saying his increased 2020 EPS estimate of $3.00 represents the high on the Street. 4. KB Home (KBH) upgraded to Buy from Neutral at Buckingham and to Overweight from Sector Weight at KeyBanc. 5. TripAdvisor (TRIP) upgraded to Buy from Neutral at DA Davidson with analyst Tom White saying TripAdvisor's business has been getting steadily healthier over the last several quarters as new products improve revenue quality by diversifying its customer base, adding that these trends, along with stability in TripAdvisor's core hotel CPC auction and valuation multiples 20%+ below historical averages reduces its risk profile and creates a compelling entry point. 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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