COHERENT's stock plummeted 7.55% during intraday trading on Friday, as the optical communication sector experienced broad-based weakness.

The decline was part of a wider selloff affecting optical communication stocks in premarket trading. Shares of Tower Semiconductor dropped more than 6%, Applied Optoelectronics declined nearly 5%, while Lumentum, COHERENT, Nokia Oyj, Astera Labs, Inc., and Corning each slid over 3%.

This sector-wide pressure contributed to COHERENT's significant intraday decline, reflecting broader market sentiment toward optical communication companies during the trading session.