AGX - After Hours Gainers / Losers (05/04/2018) May, 04 2018 05:35 PM Argan Inc. Top gainers: ALSN +4.8%. AAON +1.9%. HEAR +1.9%. AGX +1.7%. CZR +1.7%. More news on: Allison Transmission, AAON, Inc., Turtle Beach Corporation, Stocks on the move, , News on ETFs, Read more ...