On July 27, Ciena fell 3.37% in regular trading, trading at $376.61/share, with turnover of $57.15 million. The stock had risen over 3% in pre-market trading but failed to sustain gains as the session progressed.

On the news front, the optical communication sector's pre-market rally failed to hold, with broad weakness emerging across communication equipment stocks during regular hours. Among sector peers, Lumentum fell 4.91%, Applied Optoelectronics fell 1.64%, Arista Networks fell 1.12%, and Cisco fell 0.12%. The sector had previously attempted a rebound following consecutive sessions of adjustment, but selling pressure has not been fully absorbed, leading to renewed declines.

On fundamentals, Ciena's latest interim results showed revenue of $2.998 billion, up 36.38% year-over-year, with net profit surging 588.26%. BNP Paribas previously raised its target price to $640 and maintained an Outperform rating.

(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.)