HIGHER: Viewray (VRAY) up 29.4% after disclosing collaboration and investment from Elekta and Medtronic… Ardelyx (ARDX) up 10.5% after announcing Phase 3 conference call on tenapanor in CKD… Puma Biotechnology (PBYI) up 7.2% after getting Nerlynx marketing approval in Singapore… Aldeyra Therapeutics (ALDX) up 6.9% after announcing conference call on Phase 3 results for topical ocular reproxalap … Ready Capital (RC) up 5.4% after entering S&P SmallCap600 index. DOWN AFTER EARNINGS: Coupa Software (COUP) down 3.0%. ALSO LOWER: Plugpower (PLUG) down 8.7% after equity offering… Kodiak Sciencies (KOD) down 8.0% after equity offering… Karuna Therapeutics (KRTX) down 5.1% after disclosing board member resignation… Clarivate (CCC) down 4.4% after equity offering… Tufin Software (TUFN) down 4.1% after equity offering… Arrowhead Pharma (ARWR) down 2.7% after equity offering… Clearway Energy (CWEN) down 2.1% after equity offering. Movers as of 18:30ET.