[U.S. Stock Market: Optical Communication and AI Chip Concept Stocks Mostly Rise Pre-Market, AAOI Up Over 3%] BlockBeats News, August 17, according to BIT (Bit.com) market data, in the U.S. stock pre-market session, most stocks related to optical communication and AI chips saw gains. Coherent (COHR) rose 3.41% pre-market to $336.932; Lumentum (LITE) rose 2.35% pre-market to $947.900; Applied Optoelectronics (AAOI) rose 3.67% pre-market to $155.800; Nokia (NOK) rose 1.58% pre-market to $10.930; Marvell Technology (MRVL) rose 2.91% pre-market to $228.470.