Cash fears vanish as new data center demand arrives
- In Q3 fiscal 2026, Plexus delivered record revenue of $1.305 billion, up 28% year over year.
- The cash cycle dropped to 62 days, resolving previous worries about working capital and inventory.
- Non-GAAP operating margins expanded to 6.3%, meeting the high end of management guidance.
- A new data center power and cooling strategy has created a $500 million revenue funnel.
- Healthcare growth may slow in fiscal 2027 as customers digest recent product launches.
Cash returns as new markets open
Plexus answered its biggest question in Q3 fiscal 2026. The previous worry about poor cash conversion was resolved when the company delivered a 62-day cash cycle, its best result in over five years. At the same time, revenue hit a record $1.305 billion, up 28% year over year, and operating margins reached 6.3%.
The narrative has now shifted from a simple recovery to secular growth. This change is driven by the Industrial segment, where management highlighted a new $500 million funnel tied to data center power and thermal management. Both the Industrial and Aerospace/Defense sectors are expected to grow by more than 20% in fiscal 2026.
The main open question is whether the Healthcare/Life Sciences sector will drag on growth in fiscal 2027. Customers are expected to enter a digestion period after a strong year of new product launches. The bull case assumes the other segments will completely offset this temporary slowdown.
Finn's view acknowledges the rapid improvement. The stock has catalysts ahead if Plexus can convert its data center funnel into active revenue and generate more than $100 million in free cash flow next year.
Complex products for picky customers
Plexus does not sell its own branded products. It helps other companies design, source parts for, launch, build, and support complex electronics. Its customers are in markets where mistakes can be costly, such as medical devices, defense systems, industrial automation, and semiconductor equipment.
The company works in two main ways. In a turnkey job, Plexus buys the parts and delivers the finished product. In a consignment job, the customer supplies some or all of the parts. Turnkey work can create more revenue, but it also ties up cash in inventory.
The strategy is not to chase the highest volume consumer gadgets. Plexus aims for harder, lower-volume products with strict rules and long customer relationships. Its financial goal is a 15% return on invested capital, meaning profit compared with the money tied up in plants, inventory, and other assets.
That model breaks when demand shifts quickly or parts are hard to get. It also breaks if customers do not give long-term purchase commitments, because Plexus may still need to hire people and buy materials before orders fully arrive.
Services, not house brands
Design & Development
Plexus helps customers turn ideas into manufacturable products. This can pull the company into programs earlier and make later production work more likely.
Supply Chain Solutions
The company sources parts and manages suppliers for complex products. This is useful for customers, but it can consume cash when inventory rises ahead of sales.
New Product Introduction
Plexus helps move new products from prototype to production. Recent revenue growth includes production ramps for new customers and new products.
Manufacturing
Manufacturing is the core work. Scale and good factory use help margins when demand improves.
Sustaining Services
Plexus supports products after launch, helping keep them in the market longer. This can be steadier than one-time launch work.
Three main end markets
Mix is based on Q2 fiscal 2026 net sales by market sector. Plexus manages its market strategy around Industrial, Healthcare/Life Sciences, and Aerospace/Defense.
What could still go wrong
Healthcare segment digestion
Medium impact · High oddsThe Healthcare/Life Sciences segment faces a digestion period in fiscal 2027 following a strong year of new product launches. If this slowdown is deeper than expected, it could drag on consolidated revenue growth.
Supply chain tight spots return
Medium impact · Medium oddsPlexus recently solved its inventory buildup and improved its cash cycle. However, if new component shortages emerge, the supply chain team might need to build excess inventory again to secure parts, which would hurt cash flow.
Customer concentration cuts both ways
High impact · Medium oddsThe top 10 customers were 49.1% of fiscal 2025 net sales. Plexus also says customers generally do not give long-term purchase commitments. A lost program, delayed order, or customer inventory correction can hit factories and margins quickly.
Global minimum tax lowers earnings power
Medium impact · High oddsPlexus has benefited from tax holidays, including in Malaysia. Management warned that global minimum tax rules are expected to materially and unfavorably affect those benefits and the effective tax rate.
Regulated products raise the cost of mistakes
Medium impact · Low oddsPlexus serves customers where product quality and rules matter a lot. A manufacturing defect, audit issue, or compliance failure could damage customer trust and delay production.
In one breath
What does Plexus Corp. do?
Plexus helps other companies design, source, launch, manufacture, and support complex electronics. It focuses on regulated and high-complexity markets such as Industrial, Healthcare/Life Sciences, and Aerospace/Defense.
Does Plexus sell its own products?
No. Plexus is mainly a product lifecycle and manufacturing partner. Its value comes from helping customers build difficult products, not from selling a Plexus-branded device.
Why is cash flow a focus for PLXS?
Because the company often builds inventory to support program ramps. In Q3 2026, Plexus improved its cash cycle to 62 days, proving it could manage inventory efficiently.
What are Plexus's main end markets?
In Q2 fiscal 2026, Industrial was 41.1% of sales, Healthcare/Life Sciences was 40.6%, and Aerospace/Defense was 18.2%. All three grew at double-digit rates that quarter.
