Pre-market: US Stock Futures Slide, Optical Communication Concept Stocks Continue to Decline, MRVL Drops 2.85%

BlockBeats News, July 28th, according to BIT (bit.com) market data, the pre-market trading of US stocks saw a continued decline in the optical communication sector, including:

Marvell Technology Group (MRVL) down 2.85%;

AAOI (Applied Optoelectronics) down 3.11%;

LITE (Lumentum Holdings) down 2.24%;

COHR (Coherent Corp) down 3.31%;

CIEN (Ciena Corporation) down 2.7%.