- Basket snapshot: MXL, ICHR, COHU, UCTT, and SWISF offer five different ways to play the AI infrastructure trade, from optical connectivity and chip tools to secure communications.
- Sector catalyst: the S&P SmallCap 600 IT sector has outperformed the S&P 500 tech sector by roughly 38 percentage points over the past year, helped by AI hardware and infrastructure demand.
- Micro-cap angle: Sekur Private Data (OTCQB: SWISF) trades around US$0.043, with market cap near US$10M–US$11M, making it the smallest and most speculative name in the basket.
Small-cap technology is starting to get attention again, but not for the same reason as the mega-cap AI trade. The early AI winners were mainly large semiconductor and cloud names. Now, investors are also looking down the market-cap spectrum for companies tied to the physical buildout: optical connectivity, semiconductor equipment, chip testing, contamination-control systems, data-center infrastructure, and secure communications.
That is where this basket becomes interesting. MaxLinear, Ichor Holdings, Cohu, and Ultra Clean Holdings are more directly exposed to the semiconductor and AI hardware supply chain. Sekur Private Data is different. SWISF is not a chip or data-center equipment company. It is a micro-cap secure communications company, but its relevance increases if AI, data sovereignty, cybersecurity, and defense-grade communications become more important parts of the infrastructure stack.
Market Catalyst: AI Is Moving From Software Into Infrastructure
The AI investment theme is no longer only about large language models. It is becoming an infrastructure cycle. Data centers need chips, networking, optical connectivity, testing systems, process tools, power equipment, cooling, and cybersecurity. That is why smaller technology stocks with exposure to AI hardware and infrastructure have started to outperform larger software-heavy peers.
Two numbers show why investors are paying attention:
- The S&P SmallCap 600 IT sector has outperformed the S&P 500 tech sector by roughly 38 percentage points over the past year, according to Dow Jones Market Data cited by MarketWatch.
- Goldman Sachs estimated annual AI capital expenditure at about US$765B in 2026, rising to US$1.6T by 2031, while McKinsey estimates global data-center spending could reach US$7T by 2030.
That creates a strong setup for companies selling into AI infrastructure. The risk is that many of these stocks have already run hard. Investors need to watch revenue growth, backlog, margins, customer concentration, free cash flow, valuation, and whether AI-driven demand is becoming recurring or still cyclical.
1. MaxLinear: Optical Connectivity and AI Networking
MaxLinear (NASDAQ: MXL) has become one of the standout smaller tech winners as investors look for companies tied to AI networking and optical connectivity. The company supplies mixed-signal, radio-frequency, analog, and connectivity solutions used across broadband, infrastructure, data-center, and communications markets.
Recent market data showed MXL trading around US$99.83, with a market cap near US$8.7B. MarketWatch reported that MaxLinear shares surged roughly 800%, helped by its pivot toward optical connectivity and investor enthusiasm around AI-related data-center networking demand.
- Investor data point: MXL’s recent move shows how quickly the market can re-rate smaller infrastructure names when investors believe they are tied to the AI buildout.
The upside case is that AI data centers require faster interconnects, higher bandwidth, and more advanced networking components. The risk is valuation after a major rally. MXL now needs to prove that investor excitement converts into durable revenue growth and margin expansion.
2. Ichor Holdings: Semiconductor Equipment Supply Chain
Ichor Holdings (NASDAQ: ICHR) gives investors exposure to the semiconductor equipment supply chain. The company provides fluid delivery subsystems and components used in semiconductor manufacturing equipment, making it a behind-the-scenes supplier to the chip-production ecosystem.
Recent market data showed ICHR trading around US$74.42, with a market cap near US$2.6B. MarketWatch reported that Ichor gained roughly 347%, helped by strong semiconductor equipment demand and investor interest in AI-related manufacturing capacity.
- Investor data point: ICHR’s market cap remains much smaller than the mega-cap semiconductor leaders, but its business is tied to the manufacturing tools needed to expand chip supply.
The investment case is simple: if AI demand keeps driving new semiconductor capacity, equipment suppliers and component vendors can benefit. The risk is cyclicality. Semiconductor capital-equipment spending can move in waves, and ICHR remains exposed to customer timing and capex cycles.
3. Cohu: Testing the Chips Behind AI Hardware
Cohu (NASDAQ: COHU) is another under-the-radar AI infrastructure name because it sits in semiconductor test and inspection. As chips become more advanced and more critical to AI workloads, testing quality, reliability, and yield becomes more important.
Recent market data showed COHU trading around US$49.54, with a market cap near US$2.3B. MarketWatch reported that Cohu gained roughly 209%, supported by growing demand tied to AI hardware testing.
- Investor data point: COHU gives investors exposure to the less glamorous but essential testing layer of the AI chip supply chain.
The upside case is that AI hardware growth can increase demand for more advanced testing and reliability solutions. The risk is that semiconductor test demand can still be cyclical, and COHU must show that AI-related momentum offsets broader chip-market volatility.
4. Ultra Clean Holdings: Tools and Subsystems for Chip Manufacturing
Ultra Clean Holdings (NASDAQ: UCTT) supplies critical subsystems, components, and services for the semiconductor equipment industry. The company sits in the manufacturing infrastructure layer, which makes it relevant as AI demand pushes chipmakers and foundries to expand capacity.
Recent market data showed UCTT trading around US$87.10, with a market cap near US$3.9B. MarketWatch reported that Ultra Clean Holdings rose roughly 332%, driven by demand tied to chip manufacturing tools.
- Investor data point: UCTT is a picks-and-shovels play on semiconductor capacity expansion rather than a direct AI software or GPU stock.
For investors, the attraction is operating leverage to semiconductor equipment spending. The risk is that UCTT can be sensitive to chip-cycle slowdowns, customer order timing, and margin pressure if demand normalizes after a strong AI-driven investment wave.
5. Sekur Private Data: Secure Communications for the AI and Defense Era
Sekur Private Data (OTCQB: SWISF) is the outlier in this article. Unlike MXL, ICHR, COHU, or UCTT, SWISF is not an AI hardware supplier. It is a Swiss-hosted secure communications and cybersecurity company focused on encrypted email, secure messaging, VPN, identity protection, and defense-grade communications tools.
Recent market data showed SWISF around US$0.043, with market cap near US$10M–US$11M and roughly 253M shares outstanding. That makes SWISF far smaller and riskier than the other four companies, but also much more sensitive to any proof of commercial traction.
- Investor data point: Sekur’s recent SekurVoice update included plans starting at US$3,500/year and a management target of at least 1,000 operator accounts over 12–18 months, implying about US$3.5M in potential annual revenue if achieved.
The AI infrastructure angle for SWISF is indirect but relevant. As companies, governments, and defense users rely more on digital systems, secure communications, data sovereignty, and privacy infrastructure become more important. The risk is execution. Sekur still needs to prove that its product suite can convert into paid enterprise, government, or defense accounts.
Stock Snapshot
| Company | Ticker | Recent Price | Market Cap | Latest Key Number | Main AI Infrastructure Angle |
|---|---|---|---|---|---|
| MaxLinear | NASDAQ: MXL | ~US$99.83 | ~US$8.7B | Shares reportedly up ~800% | Optical connectivity and AI networking |
| Ichor Holdings | NASDAQ: ICHR | ~US$74.42 | ~US$2.6B | Shares reportedly up ~347% | Semiconductor equipment components |
| Cohu | NASDAQ: COHU | ~US$49.54 | ~US$2.3B | Shares reportedly up ~209% | AI hardware testing and inspection |
| Ultra Clean Holdings | NASDAQ: UCTT | ~US$87.10 | ~US$3.9B | Shares reportedly up ~332% | Chip manufacturing tools and subsystems |
| Sekur Private Data | OTCQB: SWISF | ~US$0.043 | ~US$10M–US$11M | SekurVoice plans from US$3,500/year | Secure communications and cyber privacy |
Bottom Line
Small-cap and smaller mid-cap technology stocks are gaining attention because the AI trade is expanding beyond software and mega-cap chips into infrastructure. MXL, ICHR, COHU, and UCTT offer more direct exposure to AI hardware, semiconductor tools, connectivity, and testing.
SWISF is the speculative outlier. It is not a chip-infrastructure stock, but it fits the broader AI-era security theme: secure communications, data sovereignty, and defense-grade cyber tools. The upside depends on execution, especially whether Sekur can turn SekurVoice and its secure communications platform into real recurring revenue.
This is sponsored content. Investors should conduct their own due diligence and consult a qualified financial advisor before making any investment decisions.
Marc has been involved in the Stock Market Media Industry for the last +5 years. After obtaining a college degree in engineering in France, he moved to Canada, where he created Money,eh?, a personal finance website.
