to focus list, Stifel upgrades MLNX (buy) ••• SunTrust initiates APD/PX (buys) & upgrades ADS (buy) & cuts AXLL, GS cuts NTGR (sell) ••• Wells cuts HPQ/LUFK & upgrades RAX/GLP, Key upgrades FIX (buy), Janney initiates GOOG (buy) ••• CS upgrades HNT, BMO upgrades KEY, Nomura upgrades MGM, UBS cuts VHS, Opco