COHR

Coherent Corp.'s stock has risen by 161.39% over the last year, largely influenced by its strong positioning in the AI market. In August 2026, the company reported fiscal Q4 results, beating revenue and non-GAAP EPS estimates, which led to a post-earnings recovery despite an 8.0% stock decline the day after. In September 2026, COHR climbed 4.64% as investors reassessed its role in AI and data center infrastructure, and on September 16, shares rose 6.9% with optical stocks being major S&P 500 gainers. On September 17, Coherent launched an upgraded pluggable optical line system (POLS) for 800G ZR/ZR+ optics. On September 18, shares rose due to sector rotation into optical communications and AI hardware, and the company launched a volume-shipping optical line system for hyperscale data centers, reporting record revenue and expanding gross margins, though shares dropped over 8% after calls to slow AI development. On September 20, Coherent widened its Pluggable Optical Line System portfolio with a compact, high-power QSFP module, contributing to a 7.22% 1-day share price return. On September 22, Stifel reiterated a Buy rating and a $420.00 price target following the launch of PhotonLink, expected to open a significant incremental addressable market. By September 23, market attention shifted to Coherent's optical components, lasers, and networking technology, recognizing their importance for efficient data movement in AI.