COHR, US19247G1076

Coherent Corp stock gains on Nvidia-backed silicon photonics push

Published on 09/20/2026 at 21:28 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Coherent Corp stock rose more than 7 percent as of September 18, 2026, supported by Nvidia’s multibillion-dollar silicon photonics commitment and strong datacenter revenue growth in fiscal year 2026. Investors are weighing the 23 percent revenue increase against negative free cash flow and rich valuation multiples.

COHR, US19247G1076, Illustration mit AI erstellt.

Coherent Corp stock (ISIN US19247G1076) is trading firmly supported by a major artificial intelligence optics narrative, with investors focusing on Nvidia’s multibillion-dollar commitment to the company and robust fiscal year 2026 growth in datacenter and communications revenue as of September 18, 2026.

AI optics deal and valuation backdrop

As MarketBeat reported on September 20, 2026, Nvidia is investing USD 2 billion in Coherent alongside a multibillion-dollar purchase commitment and future access to its silicon photonics capacity, positioning Coherent as a key supplier of lasers, transceivers and optical materials for AI data centers.

According to the same overview from MarketBeat, Coherent Corp shares closed at USD 317.43 on the New York Stock Exchange on September 18, 2026, up 7.25% on the day, with a 52-week range between USD 102.14 and USD 440.00 and a price-to-earnings ratio of 77.23.

Latest fiscal 2026 figures and cash flow

In the most recent full fiscal year 2026, Coherent generated revenue of USD 7,118.0 million, representing an increase of approximately 23% compared with the prior year, as highlighted by TradingKey.

According to TradingKey, the Data Center and Communications segment contributed USD 5,275.0 million in fiscal year 2026 revenue, up 40% year over year and accounting for roughly 74% of total sales, underscoring how strongly the business is skewed toward AI-related optical communications.

The same analysis from TradingKey notes that Coherent’s operating cash flow in fiscal year 2026 was USD 79.51 million, while capital expenditures reached USD 1,103.0 million, resulting in negative free cash flow of about USD 1,023.0 million despite the strong top-line expansion.

Market capitalization and valuation metrics

As of September 18, 2026, Coherent’s common stock market capitalization stood at approximately USD 62,100.0 million, according to TradingKey, compared with around USD 89,600.0 million for competitor Lumentum.

Based on the same figures, TradingKey calculates a trailing price-to-sales ratio of about 8.7 times for Coherent, compared with about 29.7 times for Lumentum, indicating that Coherent’s revenue base is currently valued at a much lower multiple than that of its peer.

Another perspective from Simply Wall St on September 20, 2026 argues that Coherent could be around 24% undervalued relative to a fair value estimate of USD 415.36 per share, compared with a last close of USD 317.36, although it also notes that the current price-to-earnings multiple of about 80.7 times is high.

Analyst and AI-driven price targets

Investor attention is also drawn to AI-driven price targets; for example, Danelfin on September 19, 2026 cites an AI-derived price target of USD 356.59 for Coherent stock, implying a 12.35% upside from a reference price of USD 317.40, with a high forecast of USD 422.16 and a low forecast of USD 239.07.

According to MarketBeat, Wall Street’s consensus rating on Coherent is Moderate Buy, with an average price target of USD 397.63, which stands about 25% above the USD 317.43 closing price cited for September 18, 2026.

These targets reflect optimism that Nvidia’s USD 2 billion investment and multibillion-dollar purchase agreement for silicon photonics capacity will translate into sustained revenue growth and improved profitability, but they also assume that Coherent will manage competitive pressure and capital intensity in its datacenter optics business.

Risks from competition and capital spending

The bullish narrative is balanced by clear risk factors. As Simply Wall St highlights, intense competition in pluggable optics could squeeze pricing, and large customers could scale back orders, both of which would threaten the undervaluation thesis and potentially pressure margins.

Furthermore, the fiscal 2026 free cash flow figure of approximately negative USD 1,023.0 million, as noted by TradingKey, underscores that high capital expenditure requirements are a material financial headwind, even as revenue expands.

For investors, the interplay between high growth in AI datacenter optics, Nvidia’s strategic backing and these cash flow and competitive risks is central to assessing whether Coherent’s valuation at around 8.7 times trailing sales and over 70 times earnings can be sustained.

Coherent Corp stock and current price level

Coherent Corp stock is listed on the New York Stock Exchange under the ticker COHR, and the reference price for this article is the closing price of USD 317.43 on September 18, 2026, with the shares trading between USD 102.14 and USD 440.00 over the past 52 weeks and a market capitalization of about USD 62,100.0 million as of that date.