US Stocks in the Optical Communication sector opened mixed, with industry giant Coherent dropping over 3% despite strong performance.

August 13th, according to BIT (bit.com) market data, the US stock photonic communication sector opened mixed, with the "photonics giant" Coherent falling over 3% after surpassing market expectations across the board in its new quarter earnings guidance. In the after-hours announcement yesterday, Q4 quarterly revenue was $2.05 billion, a 34% year-over-year increase, higher than the expected $19.8-20.2 billion; projected Q1 quarterly revenue is $2.2-2.4 billion, above the expected $21.3 billion, with adjusted EPS estimated at $1.85-2.05, higher than the expected $1.77.

The Pure Photonic ETF FOTO rose by 0.05%;

Corning (GLW) fell by 0.19%;

Marvell Technology (MRVL) rose by 1.73%;

AAOI (Applied Optoelectronics) fell by 1.10%, a company that manufactures high-speed optical modules (800G/1.6T) focusing on AI data center transceivers;

LITE (Lumentum Holdings) fell by 0.39%, a company that is a key supplier of optical communication lasers and modules, and a major provider to AI data centers;

COHR (Coherent Corp) fell by 3.76%, a company that is a leader in lasers, optical components, and photonics solutions, serving data center and industrial fields;

CIEN (Ciena Corporation) rose by 0.93%, a company that produces high-speed SerDes and connectivity chips, focusing on low-power interconnects for AI data centers.