Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Fluor (FLR) upgraded to Buy from Hold at Johnson Rice with the firm saying the valuation discount to peer Jacobs Engineering (JEC) is unwarranted. 2. Alcoa (AA) was upgraded to Buy from Neutral at Citi and to Hold from Sell at Deutsche Bank. 3 CSX (CSX) upgraded to Buy from Neutral at UBS with analyst Thomas Wadewitz citing the strong track record of activist investors Paul Hilal and Hunter Harrison. Wadewitz noted the current share price reflects high expectations but his analysis still indicates that upside potential remains attractive. Wadewitz raised his price target to $57 from $38 on CSX shares. 4. Halcon Resources (HK) was upgraded to Overweight from Equalweight at Capital One and to Overweight from Equal Weight at Stephens. 5. American Eagle (AEO) to Outperform from Market Perform at Telsey Advisory with analyst Dana Telsey saying American Eagle's valuation is "compelling' against an outlook for continued earnings growth and maintained her $19 price target on shares. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.