Coherent Is Solving Real AI Problems. Is It Still a Buy at This Price?
Coherent's stock just absorbed a brutal pullback while its forward earnings estimates climbed higher, a rare split that forces a direct question about whether the optical AI infrastructure trade still has legs at this price.
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Coherent (NYSE:COHR | COHR Price Prediction) looks compelling at $268.64, with the stock having pulled back 8.74% in the past week even as forward earnings estimates keep marching higher. That combination of cooling price and heating fundamentals is exactly the moment worth having a view on.
Coherent is a photonics manufacturer whose lasers, transceivers, and optical components sit at the physical layer of the AI datacenter. Its Datacenter and Communications segment now accounts for 79% of total sales and grew 59% year over year in the June quarter. A run from roughly $87.80 a year ago to the high $330s in August, followed by a fade back to the current level, has left the stock in a genuine debate zone.
Why the AI Bandwidth Trade Still Has Room
The bull case rests on a supply-constrained business selling into a demand curve that keeps steepening. Q4 revenue hit $2.05 billion, non-GAAP EPS came in at $1.74, and non-GAAP operating margin expanded to 21.8% from 18.0% a year earlier. Management guided Q1 FY27 revenue to between $2.2 billion and $2.4 billion and is targeting a quarterly revenue run rate above $3 billion by the end of fiscal 2027.
Bookings hit a record, customer orders now extend into calendar 2028, and CEO Jim Anderson said “AI datacenter architectures increasingly transition from copper to optical connectivity.” That copper-to-optical shift is the same tailwind lifting the non-chip AI suppliers we profiled in a free report on seven picks-and-shovels names powering the buildout. New platforms in 1.6T transceivers, optical circuit switches, CPO, and thermal solutions all ramp into fiscal 2027, and analysts have raised the FY27 EPS estimate from $8.0885 ninety days ago to $9.4061.
Where the Valuation Gets Uncomfortable
The bear case starts with the multiple. A trailing P/E of 65 leaves little margin for error, and FY26 operating cash flow fell 87.45% to $79.5 million as capital expenditures jumped 150.18% to $1.1 billion. Long-term debt sits at $3.2 billion.
Concentration compounds the risk. Nearly four fifths of revenue depends on hyperscaler AI capex, industrial revenue was roughly flat pro forma for the year, and Q3 industrial fell 16.1%. Any push out of CPO, indium phosphide yield stumbles, or slowdown in 800G and 1.6T adoption hits a stock that already tripled off its September 2025 base.
Argument for Patience
The hold view says the setup is real but the entry is awkward. Shares are down 6.77% over the past month, and the next print will test whether guidance ranges tighten. Coherent Photon Link launches at an industry event on September 21, CPO revenue begins in fiscal Q2 2027, and Thermodyte cooling ramps in the second half of calendar 2027. Waiting one quarter costs optionality but buys visibility on capex payback and margin trajectory toward the 42% gross margin target.
What the Numbers Say About the Setup
Coherent currently trades at $268.64 against an average analyst price target of $397.63 across 21 analysts, implying roughly 48% upside, with a consensus Buy rating. Targets are one data point among many.
Performance context matters. COHR is up 45.55% year to date and 205.97% over one year, versus roughly 11.99% YTD and 18.13% over one year for the S&P 500. FY26 revenue reached $7.12 billion, up 22.51%, with net income of $805 million.
Why the Setup Still Looks Favorable Here
At $268.64, the setup warrants a closer look. Here is why.
The path to appreciation is mechanical. Internal indium phosphide capacity doubles by the end of the current quarter, one quarter ahead of plan, and doubles again by the end of calendar 2027. That directly translates into transceiver volume for 800G and 1.6T, the two products in tightest demand. Layer in CPO revenue starting fiscal Q2 2027 with NVIDIA-linked ultra-high-power lasers, plus optical circuit switching addressing a $4 billion opportunity, and the FY28 consensus of $13.9489 in EPS looks bracketed by real orders.
The risk/reward at this entry is favorable because the stock has already absorbed a roughly 20% drawdown from the August print while forward estimates rose. What would invalidate the call: a CPO push out, a 1.6T adoption stall, or a hyperscaler capex reset. Investors should watch quarterly indium phosphide output, 1.6T mix, and CPO revenue recognition in the December quarter.
Coherent is compounding earnings faster than its price is rising, and that is the crux of the bull case.
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Alex Sirois is a financial writer with experience spanning both retail and institutional investing. He has written for InvestorPlace and held roles at BNY Mellon and Bernstein, giving him a perspective that bridges Main Street portfolios and Wall Street analysis.
Alex holds an MBA from George Washington University and has built his career across multiple industries, including e-commerce, education, and translation — a breadth of experience that informs how he breaks down complex financial topics for everyday investors. His writing is conversational, actionable, and grounded in long-term, buy-and-hold investing principles.
At 247 Wall St., Alex focuses on delivering analysis that is both accessible and useful, with a clear emphasis on helping readers make more informed decisions with their money.
