Today's noteworthy upgrades include: Aetna (AET) upgraded to Buy from Hold at Cantor...Cablevision (CVC) upgraded to Neutral from Sell at UBS...Calpine (CPN) upgraded to Buy from Neutral at UBS...Core Laboratories (CLB) upgraded to Outperform from Sector Perform at RBC Capital...Dillard's (DDS) upgraded to Neutral from Underperform at Credit Suisse...FMC Corporation (FMC) upgraded to Outperform from Market Perform at Cowen...Goldman Sachs BDC (GSBD) upgraded to Outperform from Market Perform at Raymond James...International Game (IGT) upgraded to Outperform from Market Perform at Telsey Advisory...PPL Corp. (PPL) upgraded to Buy from Neutral at UBS...Valspar (VAL) upgraded to Overweight from Neutral at JPMorgan.