Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Facebook (FB) upgraded to Buy from Neutral at MoffettNathanson. 2. Red Rock Resorts (RRR) upgraded to Buy from Neutral at Goldman Sachs with analyst Stephen Grambling saying he sees 35% total return potential in the stock as he believes a successful Palms ramp and free cash flow "inflection" in 2020 can drive a "sustained re-rating." 3. JetBlue (JBLU) upgraded to Buy from Neutral at Citi with analyst Kevin Crissey saying JetBlue has positive catalysts to support incremental buyers with a range of time horizons and investment styles. 4. Lyft (LYFT) upgraded to Positive from Neutral at Susquehanna. 5. Dollar Tree (DLTR) resumed with an Overweight from Neutral at JPMorgan with analyst Matthew Boss saying he expects an inflection to high-single net income growth and low-double-digit consolidated earnings growth beyond fiscal 2019 as the Dollar Tree offers stability and Family Dollar improves. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.