On September 18, Lumentum rose 3.16% overnight, trading at approximately $921.02/share, with turnover of $27.88 million. The stock had earlier declined roughly 2.81% during regular trading as markets attributed the weakness to a lagged reaction to the Federal Reserve's 25-basis-point rate hike announced the prior session.

The overnight rebound was driven by a broad rally across U.S. equity markets. All three major indices opened sharply higher, with the Dow up 0.81%, the S&P 500 up 1.19%, and the Nasdaq up 1.55%. Mega-cap tech names including NVIDIA, Amazon, and Tesla each gained over 2%, while the Philadelphia Semiconductor Index surged approximately 3%. Optical communication and storage stocks participated in the risk-on move, with peers Coherent, Corning, and Marvell Technology also advancing.

On the macro front, reports of continued productive dialogue between China and the U.S. on tariff reduction provided additional support for sentiment. Meanwhile, NVIDIA CEO Jensen Huang stated that chip sales next year would double current levels, reinforcing confidence in sustained AI infrastructure spending — a key demand driver for Lumentum's high-speed optical transceiver and laser chip products.

(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.)