P AFTER EARNINGS: Dave & Buster's (PLAY), up 10.4%... CONN'S (CONN), up 10.2%. ALSO HIGHER: Akebia Therapeutics (AKBA), up 70.3% after Phase 2 Study of Vadadustat achieved its primary objective... AcelRx Pharmaceuticals (ACRX), up 15.7% after ARX-04 met all endpoints in its Phase 3 study... Protalix BioTherapeutics (PLX), up 8.2% after reporting positive Phase I/II clinical data on 1mg/kg cohort of PRX-102... Pluristem Therapeutics (PSTI), up 5.3% following meeting with FDA. LOWER: Tetraphase (TTPH), down 79% after the eravacycline phase 3 clinical trial did not meet its primary endpoint... Aquinox Pharmaceuticals (AQXP), down 11.2% after announcing that it intends to offer $75M of common stock... MannKind (MNKD), down 7.9% after being downgraded to Underweight from Neutral at Piper Jaffray... Cheniere Energy (LNG), down 3.7% after Jim Chanos announced a short position in the company, while on CNBC