SkyWater Technology, Inc. (SKYT)

SkyWater Technology operates a semiconductor fabrication plant, commonly called a foundry, in Minnesota. Unlike the dominant semiconductor producers of the last two decades, which have consolidated into a handful of giants servicing the world’s consumer electronics makers, SkyWater occupies a much narrower and more precarious niche: it makes specialty chips in smaller volumes for defence contractors, aerospace companies, and other sectors where being American-owned, geopolitically safe, and flexible in customization matter more than competing on cost per unit.

The semiconductor industry has a peculiar geography. The cutting edge — the race to cram the most transistors into the smallest space for the cheapest price — is dominated by Taiwan (TSMC) and South Korea (Samsung). The result is that most semiconductor manufacturing in the United States has shrunk to either fabs built for older, well-established designs, or smaller specialty players like SkyWater. The company’s shares trade on the NASDAQ under the ticker SKYT.

Being a domestic foundry in an industry obsessed with cost means surviving on margin from customers who cannot or will not use overseas suppliers.

The niche: Defence, space, and customization

SkyWater’s survival depends on serving customers for whom the usual calculus of outsourcing to Asia breaks down. Defence contractors and aerospace primes face security clearance requirements, export controls, and intellectual-property concerns that make a US-based, trusted supplier valuable. Some government contracts explicitly require chips to be made in America. That regulatory tailwind, combined with the company’s willingness to customize designs for smaller production runs, creates a defensible business even at prices and scales that would never compete with TSMC or Samsung.

The company makes chips using what the industry calls CMOS technology — the same fundamental technique that powers everything from smartphone processors to sensors. SkyWater’s 90-nanometre and older nodes are not at the technological frontier, but that is precisely the point: they are mature, well-understood, and what much of the speciality market actually needs. A missile guidance system does not require the latest silicon; it requires reliability, the ability to customise the design, and supply chain security.

The economics of being small

The foundry business at scale — TSMC’s business — runs on razor-thin margins per chip, sustained by producing billions of units for smartphone and computer makers. SkyWater cannot win that way. Instead, it wins by charging higher prices to customers for whom a domestic fab and design flexibility justify the premium. It works with smaller order volumes and a more customized, iterative design process. This keeps the company lean, but it also means revenue is lumpy and exposed to the defence-spending cycle.

The company’s revenue depends heavily on whether defence budgets rise or flatten, how many new weapons systems move into production, and whether government policy continues to favour or require US-based chip manufacturing. Recent years have brought tailwinds: geopolitical tensions with China, supply-chain anxiety, and explicit US government efforts to encourage domestic semiconductor capacity have all improved SkyWater’s circumstances. But those tailwinds can shift.

Ownership and capital structure

SkyWater went public in 2021 after a long period of private ownership. The company raised capital to upgrade its Minnesota fab, adding capacity and modernizing equipment. This was an expensive undertaking, and the company has had to manage its burn rate carefully as it grows revenue. Unlike a subscription-software company that can scale with minimal incremental cost, a foundry requires capital investment to add production capacity — each additional wafer fab unit costs hundreds of millions of dollars.

The company has also received government support, including funding from the US Department of Defense and participation in various government-backed chip-making initiatives. This underscores the strategic importance the US government places on having domestic advanced semiconductor manufacturing, even if it is smaller and higher-cost than overseas alternatives.

What makes small in semiconductors dangerous

The chief vulnerability of being a small foundry is that the economics of speciality chips may not be durable. If major chip manufacturers like Samsung or Intel invest heavily in small, custom runs for defence, SkyWater’s differentiation evaporates. If geopolitical tensions ease and security concerns recede, the premium for being domestic erodes. And if the defence budget contracts or major primes consolidate their supplier base, SkyWater’s customer concentration — the fact that a handful of large defence contractors represent a significant share of its business — becomes a risk.

The company also sits in a transitional moment. The US government has signalled strong intent to support domestic manufacturing, but it remains to be seen whether that support is durable or whether economics will eventually push even defence work offshore. For now, SkyWater benefits from both need and policy, but that combination is not guaranteed to last forever.

How to research SkyWater

Read the company’s quarterly and annual 10-Q and 10-K filings, which detail revenue by customer segment and the trajectory of fab utilization. Watch the company’s investor presentations for commentary on defence-spending trends and new wins with prime contractors. Monitor announcements about government support, funding, and policy changes around domestic chip manufacturing — these often move the stock more than the underlying business does. Pay attention to the gross margin trends and the capital intensity of the business: as the company scales, does it need another fab? Are margins expanding or under pressure? The key metric is not whether SkyWater is growing faster than TSMC — it never will — but whether the niche economics and government support make the company sustainable as a much smaller, specialized player in a consolidated industry.