Cohu's stock experienced a sharp pre-market plunge of 16.16% on Friday, extending losses from the previous trading session.
The decline follows the semiconductor equipment company's release of its fourth-quarter financial results, which revealed a substantial bottom-line miss. Cohu reported an adjusted loss of $0.15 per share for Q4 2025, dramatically missing the analyst consensus estimate for a profit of $0.06 per share. This significant earnings disappointment, coupled with a reported GAAP net loss of $22.5 million for the quarter, drove negative investor sentiment and the sell-off.