COHERENT CORP. (COHR) — Fundamental Analysis

Coherent Corp. (COHR) is a photonics and compound semiconductors company that has undergone a dramatic transformation over the past few years — absorbing the 2022 merger with II-VI Incorporated and navigating a turbulent integration period that temporarily crushed its margins. The good news: the latest annual and quarterly data show the turnaround is taking hold in a meaningful way. Revenue has surged to over $7.1 billion in fiscal year 2026 (ending June 30, 2026), net margins have swung from negative territory back into positive double digits, and the balance sheet is deleveraging quickly. Capital spending has jumped sharply in the most recent quarter, a signal that management is betting heavily on future capacity — particularly around AI-driven datacom and networking demand. For long-term investors, the trajectory is encouraging, though the elevated capital intensity and the company's history of margin volatility deserve close watching.

Snapshot & Big Picture

Coherent sits at the intersection of several high-growth secular themes: AI infrastructure, datacom transceivers, industrial lasers, and aerospace/defense photonics. Following the transformative II-VI/Coherent merger in early 2022, the combined company has spent the better part of three fiscal years digesting the deal — absorbing integration costs, restructuring charges, and amortization of acquired intangibles that weighed heavily on reported earnings. Through fiscal years 2023 and 2024, the company posted net losses. But fiscal year 2025 returned to a slim profit, and fiscal year 2026 delivered the strongest net margin in the dataset at roughly 11.3% — a notable inflection. Revenue, meanwhile, has grown at a solid pace from a larger base, driven by strong demand for optical components tied to hyperscaler AI buildouts.

Latest Quarter Snapshot

The most recent quarterly data (period ending June 30, 2026) is more current than the full-year figures and paints an upbeat near-term picture. Quarterly revenue came in at approximately $2.05 billion, with an operating margin of about 3.1% and a net margin of 11.8% — the latter boosted likely by below-the-line items or tax benefits that lifted net income above operating income for the period. EBITDA for the quarter was $203 million. The current ratio stands at 2.43, indicating comfortable short-term liquidity, and the debt-to-equity ratio has compressed sharply to just 0.30 — down from 0.79 two years prior — reflecting active debt paydown or equity strengthening. One flag worth noting: capital expenditures in this single quarter reached $555.7 million, representing a capex-to-revenue ratio of 27.2% — well above recent annual averages, suggesting a significant step-up in investment activity in the final quarter of fiscal 2026.

Profitability

Coherent's profitability story is essentially a tale of two eras. Prior to the II-VI merger, the legacy company (then operating under the II-VI name) generated consistent operating margins in the 11–13% range and positive net margins. The merger brought scale but also a wave of merger-related charges and integration costs that pushed operating and net margins deeply negative in fiscal years 2023 and 2024. Gross margin data was not available in the filings for any period, limiting a full breakdown of cost structure. EBITDA was reported for some years — ranging from $260 million in fiscal 2020 to $702 million in fiscal 2022 — but was not available in the fiscal 2025 or 2026 annual filings. Operating margin data for fiscal years 2025 and 2026 was also not available in those filings. What is clear from net margin trends is that the post-merger trough appears to have passed: from -5.0% in FY2023 to -3.3% in FY2024 to near breakeven in FY2025 and a strong 11.3% in FY2026. If sustained, this trajectory suggests the integration costs are largely behind the company.

Financial Health & Capital Expenditures

Coherent's balance sheet health has improved materially. The current ratio, while declining from its post-merger peak of 4.15 in fiscal 2021, remains solidly above 2.0 across all recent periods — indicating the company can comfortably cover near-term obligations. More meaningfully, the debt-to-equity ratio has fallen from a high of 1.09 in fiscal 2020 and 0.86 in fiscal 2023 to just 0.30 by fiscal year-end 2026, suggesting the company has been actively reducing leverage as cash flows recovered.

Capital expenditure trends deserve careful attention. For most of the historical period, capex ran between 5% and 10% of revenue — elevated but consistent with a capital-intensive photonics and semiconductor manufacturing business. That intensity ticked up in fiscal 2026 annually (15.5% of revenue, or $1.10 billion) — already a meaningful jump — but the single-quarter capex figure of $555.7 million (27.2% of quarterly revenue) suggests a particularly heavy investment in the back half of fiscal 2026. This could reflect capacity expansion tied to AI-related transceiver demand, new fab investments, or both. Rising capex intensity is a double-edged signal: it implies confidence in future demand but also increases near-term free cash flow pressure and execution risk.

Growth

Coherent's revenue CAGR figures reflect both organic growth and the step-change in scale from the II-VI merger. The three-year CAGR starting from fiscal year 2023 — a post-merger trough year with $5.16 billion in revenue — understates the underlying organic growth rate somewhat, since FY2023 itself was a reset year. The five-year CAGR is more illustrative of the company's trajectory from its pre-merger baseline. A 10-year CAGR is not available because the filing history in the dataset does not extend back a full decade from the current fiscal year end.

An 18% five-year revenue CAGR is impressive in absolute terms, though a meaningful portion reflects the transformative II-VI merger rather than purely organic growth. The more modest 11.3% three-year CAGR from a larger post-merger base is arguably the more useful signal of current trajectory — and still represents healthy growth for a business of this scale, particularly as AI infrastructure spending continues to accelerate demand for optical interconnects.

Source Filings

• 10-K filed August 14, 2026 (Fiscal Year Ended June 30, 2026)
• 10-Q filed May 6, 2026 (Quarter Ended March 31, 2026)