TITLE: CLS Beat, Raised, and Got Sold Anyway. That Gap Is the Opportunity.
SUBTITLE: Celestica just posted its best quarter in company history. The stock is still about 37% below its June peak.
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There is a pattern in AI infrastructure stocks right now that deserves attention. A company posts record revenue. It beats on earnings per share. It raises full-year guidance for the third time in six months. Then the stock drops anyway, dragged down by dilution fears or macro noise or a market that has decided to punish execution.
Celestica (NYSE: CLS) has lived this pattern. And for investors willing to look past the surface, the gap between what the business is reporting and what the stock is pricing may be one of the more compelling situations in the AI supply chain today.
Market Temperature
The broader market context matters here. The S&P 500 pushed to fresh record highs in mid-August 2026, powered by cooler inflation data and resilient corporate earnings. The Federal Reserve has held the federal funds rate in the 3.50%–3.75% range for five consecutive meetings, removing one of the key overhangs that hurt rate-sensitive growth names earlier in the year.
But AI infrastructure stocks have not uniformly benefited. After Alphabet raised its 2026 capital expenditure guidance to a range of $195 billion to $205 billion, investors started asking harder questions about return on investment across the entire hyperscaler ecosystem. That skepticism created collateral damage. Companies with genuine revenue and margin growth got sold alongside the hype, and Celestica was caught in the cross-draft.
Company Introduction
Celestica is not a name that lights up financial media the way Nvidia does. It does not have a charismatic CEO doing television interviews. What it has is a position at the center of the physical AI buildout that is becoming harder to replicate.
The Toronto-based company designs, engineers, and manufactures the data center infrastructure that hyperscalers and AI companies actually need to run large-scale compute clusters: high-speed networking switches, custom AI racks, and increasingly, proprietary Hardware Platform Solutions that carry Celestica’s own intellectual property and design contribution into the product. That last piece is the one the market keeps underpricing.
Data-Driven Deep Dive
The Q2 2026 numbers are not ambiguous. Revenue came in at $4.70 billion, up 62% from the same quarter a year earlier and above the top end of the company’s own guidance range. Adjusted EPS of $2.54 exceeded the high end of the company’s guidance. The adjusted operating margin hit 8.2%, a record for the company and 80 basis points above Q2 2025.
CEO Rob Mionis described it plainly: the quarter delivered the highest earnings per share in Celestica’s corporate history. The company responded to those results by raising its full-year 2026 revenue outlook a third time, now targeting $20.5 billion against its prior-year outlook. Full-year adjusted EPS guidance moved to $11.30, and free cash flow guidance was lifted to $600 million.
Two segments drove the performance:
- Connectivity and Cloud Solutions (CCS): Revenue surged 84% year over year to $3.81 billion, with an 8.7% segment margin. This is the engine carrying hyperscaler demand for AI networking and compute.
- Advanced Technology Solutions (ATS): Revenue rose 8% to $0.89 billion. Margins expanded to 6.3% from 5.3% a year ago, pointing to improving profitability even in the slower-growth segment.
Inside CCS, the Hardware Platform Solutions sub-segment is the real story. HPS revenue reached approximately $1.9 billion in Q2, representing 41% of total company revenue. These are products where Celestica contributes proprietary design and engineering, not just assembly. That design-led contribution gives the company pricing power that standard electronics manufacturing services players do not have. Management has tied much of its advanced networking ramp to HPS, and that helps explain why margin expansion is running ahead of the revenue mix you would expect from a pure contract manufacturer.
The Q3 2026 guidance adds another data point. Celestica guided for revenue of $5.25 billion to $5.55 billion, with adjusted EPS of $2.88 to $3.08. The company also flagged outsized enterprise growth in Q3, driven by the ramp of hyperscaler AI compute programs.
Strategic Insight
The reason CLS belongs in this conversation right now is not the trailing numbers. It is the 2027 roadmap, which is beginning to come into focus.
Two programs are the centerpiece. First, OpenAI and Broadcom have described Jalapeño as the first step in a multi-generation compute platform designed for initial deployment by the end of 2026, with Celestica helping industrialize the platform through board, rack, and system work. Management has framed this OpenAI-related work as a very large opportunity across 2027 and 2028.
Second, Celestica is the manufacturing and design partner for AMD’s Helios rack-scale AI platform, announced March 16, 2026. The Helios scale-up switches are designed to interconnect AMD’s next-generation Instinct MI450 Series GPUs in large-scale AI clusters, with volume deployments expected to begin in the second half of 2026 and broader deployments ramping into 2027.
Put those two programs together with the existing 800G networking book and the 1.6-terabit switching ramp already awarded to Celestica, and you have a 2027 growth acceleration that management has said should exceed the already elevated 65% revenue growth pace expected for 2026. Adjusted EPS is projected to grow faster than revenue in 2027, implying further margin expansion on top of the record margins already being posted.
The $3 billion equity raise completed on August 7, 2026 is worth examining in this context. The offering priced at $310 per share, and the underwriters exercised their option in full, bringing gross proceeds to about $3.45 billion. The market treated it as a negative, and shares fell sharply in the days following. But the use of proceeds was explicit: working capital and capital expenditures. Management had already signaled about $1 billion in capex for 2026 and discussed capex rising toward $1.5 billion in 2027. A company raising capital to fund capacity ahead of known demand ramps is not a company in distress. It is a company trying not to leave revenue on the table because its growth is outrunning its own balance sheet.
Risks Section
The risks here are real and worth naming clearly. Customer concentration is the most significant. Celestica’s CCS segment revenue is heavily tied to a small number of hyperscalers. If one large customer slows or shifts procurement toward in-house manufacturing, the revenue model is exposed.
The equity raise diluted existing shareholders. That is a concrete cost, not a hypothetical. Free cash flow guidance for 2026 remains $600 million against expected revenue of $20.5 billion, a margin that leaves limited room for error on the capital expenditure side.
Component supply constraints are a persistent issue. CFO Mandeep Chawla noted that growth limitations stem from materials availability rather than customer demand. That means revenue upside is capped in the near term by the supply chain, not the order book.
And valuation is not cheap by traditional contract manufacturer standards. At a forward price-to-earnings ratio in the low-to-mid 20s and an EV-to-revenue near 2.6 times, CLS is priced for sustained execution. A single quarter of guidance reduction would likely produce a meaningful reset in valuation.
Big Picture
Celestica’s position in the AI infrastructure chain is evolving in a direction the market tends to reward over time: away from low-margin assembly and toward design-led, proprietary manufacturing. The HPS segment is the clearest expression of that shift, growing into a multi-billion-dollar annual business with hyperscalers. When a company transitions toward products that carry its own intellectual property, the margin trajectory tends to be durable even if the revenue growth eventually normalizes.
The five major hyperscalers that are rated by S&P Global Ratings are projected to spend about $750 billion on capital expenditures in 2026, and S&P Global Ratings has projected that combined spending could rise further toward roughly $1 trillion by 2029. Celestica is not going to capture all of that. But with confirmed platform work tied to OpenAI’s Jalapeño compute effort, its Helios collaboration with AMD, leading exposure to 800G networking switches, and a 1.6-terabit switching program slated to ramp, it is positioned to capture a meaningful share of the physical build layer.
The competition is real. Jabil and Flex both operate in the same AI infrastructure market, with Jabil expecting approximately $13.6 billion in AI-related revenue for fiscal 2026. But Celestica’s HPS model, with its design contribution and proprietary technology, creates a different cost and margin structure than pure contract assembly.
Final Thought
CLS shares were trading around $300 in August 2026, while the 52-week high was about $474. According to S&P Global Market Intelligence data cited by StockAnalysis, the consensus analyst price target was about $473 based on 20 analysts, with a Strong Buy rating. The stock is trading, right now, near the price of the August equity offering that caused the initial selloff.
Scotiabank resumed coverage with an Outperform rating. CIBC called the selloff a buying opportunity. RBC Capital maintained its Buy. The analyst community is not running from this story; it is leaning into it.
Two large platform ramps are pointed at 2027. Management has guided for accelerating revenue growth and faster EPS expansion next year. The balance sheet is strengthened by about $3.45 billion in fresh capital. And the stock is sitting about 37% below its June peak, offering investors a second look at a business that has not missed a beat operationally.
Celestica is worth watching closely. The next earnings report is expected around October 26, 2026. Between now and then, the OpenAI-related initial deployments targeted for late 2026 and the Helios program’s ramp are the two developments most likely to shift the market’s assessment of the 2027 growth outlook.
Subject Line
CLS Is 37% Off Its High. The Business Isn’t.
Preheader
Record revenue, record margins, two large programs ramping. The selloff created a gap worth examining.
Meta Description
Celestica posted record Q2 2026 revenue of $4.7 billion, up 62% year over year. The stock is about 37% off its June peak. With OpenAI-related platform work and AMD Helios ramping into 2027, here is what the data shows.
Disclaimer: This editorial is for informational purposes only and does not constitute investment advice. All financial data referenced is sourced from company filings and publicly available reports. Past performance is not indicative of future results. Investors should conduct their own research and consult a qualified financial advisor before making any investment decisions.
