On October 3, Ciena rose 3.04% in regular trading, trading at approximately $390.68 per share, with turnover of $6.0 billion. The stock continued to gain momentum amid a wave of bullish analyst actions and sustained strength across the optical communications sector.

On the news front, Bernstein recently initiated coverage of Ciena with an Outperform rating and a $440 price target, while also assigning bullish ratings to peers Lumentum and Coherent. Earlier, Evercore ISI upgraded Ciena to Outperform from In Line, raising its price target sharply to $550 from $375, citing the company's optical networking business as a critical bottleneck in AI infrastructure buildout. Morgan Stanley highlighted Ciena's projected roughly 30% compound annual revenue growth rate over the next three years and an estimated $12 billion in new data center market opportunities by 2029.

These upgrades are underpinned by Ciena's strong fiscal Q3 results, in which adjusted EPS reached $2.11, surging 215% year-over-year and beating the consensus estimate of $1.73. The company also raised its full-year revenue guidance to $6.42 billion, above the market expectation of $6.34 billion. Sector peers Lumentum and Applied Optoelectronics also posted notable gains of 3.86% and 7.10%, respectively.

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