Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Huntington Ingalls (HII) upgraded to Outperform from Market Perform at Wells Fargo with analyst Sam Pearlstein saying he believes the company's free cash flow will be higher than previously expected in 2019. 2. Valvoline (VVV) upgraded to Neutral from Underweight at JPMorgan with analyst Jeffrey Zekauskas saying he believes the valuation at current levels is fair. 3. Pandora (P) upgraded to Buy from Neutral at B. Riley FBR and to Buy from Hold at SunTrust. 4. Terex (TEX) upgraded to Buy from Hold at Vertical Research with analyst Joseph O'Dea citing improving pricing, valuation, and cycle upside. 5. Emcore (EMKR) upgraded to Buy from Neutral at B. Riley FBR. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.