Shares of Coherent Corp. vaulted 17.6% to $426.76 on June 2, driven by a new bullish analyst initiation spotlighting the company's position as a primary supplier of the optical plumbing that connects AI data centers. The move catapults the stock above even the highest Wall Street price target — previously as high as $455 — raising the question of whether the market is pricing in reality or hope.

A $2 Billion Nvidia Bet Gives Coherent a Customer Others Don't Have. In March, Nvidia and Coherent announced a multiyear strategic agreement that includes an Nvidia multibillion-dollar purchase commitment for laser and optical networking products, plus a $2 billion Nvidia investment in Coherent to fund R&D and U.S. manufacturing expansion. That deal locked in demand visibility well beyond the typical order cycle. Stifel noted Coherent's order visibility now extends 12 to 18 months, a significant increase from historical norms. For shareholders, this means revenue is less of a guess and more of a schedule.

Record Earnings Show the AI Money Is Already Arriving. Coherent's fiscal Q3 delivered record revenue of $1.8 billion (up 21% year-over-year), non-GAAP gross margin of 39.6%, and non-GAAP earnings per share of $1.41 — up 55% from a year ago.

The Q4 outlook calls for $1.52–$1.72 in EPS on up to $2.05 billion in revenue.

Data center and communications now represent 75% of Coherent's revenue mix , making it a direct proxy for AI infrastructure spending.

Hyperscaler Spending Is the Fuel — and the Risk. The four largest cloud companies plan to invest up to $630 billion in capital expenditures in 2026, roughly a 62% increase from 2025's record.

Stifel's Ruben Roy expects Coherent to deliver consistent beat-and-raise results as hyperscalers accelerate capex by 67% year-over-year. But if that spending plateaus, Coherent is left holding expensive new factory capacity with fewer buyers — a classic cyclical trap.

The Valuation Now Demands Perfection. At $426.76, Coherent trades above every recent analyst target. Analysts expect full-year EPS of $4.70, representing 75% growth — impressive, but the stock is now priced at roughly 91 times that figure. Management expects fiscal 2027 growth to exceed fiscal 2026's rate , which is essentially the promise investors are buying. Any stumble in execution or capex momentum could unwind today's gains just as fast as they arrived.