On August 18, Applied Optoelectronics declined 5.64% in regular trading, trading at approximately $142.995/share, with turnover of $320 million.

The decline was driven by a broad selloff across the optical communication sector combined with lingering concerns over the company's below-consensus Q3 guidance. Sector peers fell sharply in tandem, with Lumentum down 5.03%, Ciena down 5.86%, and Fabrinet dropping over 8%, creating significant sector-wide drag.

While the company reported strong Q2 results — revenue of $191.9 million representing 86% year-over-year growth and data center revenue exceeding $100 million for the first time — its Q3 guidance of $0.11-$0.26 adjusted EPS on revenue of $255-$290 million fell short of analyst expectations of $0.28 EPS on $278.3 million in revenue. Following consecutive sessions of sharp gains, including a 15% rally on August 14 and a 5.3% rise on August 17, the weak guidance overhang combined with sector rotation triggered profit-taking pressure across the stock.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)