3 AI Stocks Retail Investors Are Watching For Real Revenue Growth

Government bond yields have been moving as investors react to shifting inflation expectations. That puts a spotlight on smaller companies that could grow through AI driven efficiency rather than relying only on easy money. The AI Small Caps screener hunts for these under the radar stocks working on machine learning, automation, and data intelligence. This article highlights three stocks from the screener that may merit closer analysis.

The three AI Small Caps highlighted below are just a starting sample, and the full screen surfaced 28 more companies with equally compelling narratives that are not covered in this article. To go further, head straight into the AI Small Caps screener to analyze, filter, and identify the AI small caps that best fit your portfolio thesis.

SoundHound AI (SOUN)

Overview: SoundHound AI builds independent voice AI systems that power conversational experiences for cars, restaurants, connected devices, and customer service, using its own platforms such as Houndify and SoundHound Chat AI. Its tools handle everything from wake words and speech recognition to multimodal customer service, helping companies offer natural voice interactions without relying entirely on big tech providers.

Operations: SoundHound AI generates about US$203 million in revenue from internet software and services, with roughly US$136 million coming from the United States and the rest from other international markets and segment adjustments.

Market Cap: US$3.3b

SoundHound AI interests many investors because it sits at the center of the shift to voice based, agentic AI while already working with automakers, restaurant platforms, and enterprise customers through its OASYS and Voice AI offerings. The business is still loss making and carries funding and balance sheet risk, and analysts expect earnings to remain under pressure even as revenue forecasts stay in double digits. As a result, execution on cost control and integration of deals such as LivePerson will be important. For investors who can accept volatility and a premium valuation, the mix of enterprise adoption, expanding use cases, and established customer relationships makes SoundHound AI a stock that some may choose to watch closely within the AI small cap space.

SoundHound AI sits where voice agents and real revenue meet, yet the real story sits in the fine print. Get the 2 key rewards and 3 important warning signs (1 is major!) to see what might be hiding in plain sight.

Build your own AI voice and automation shortlist

SoundHound AI and the two other stocks in this article all came from a single Simply Wall St screen, but the real edge is in setting your own rules. Use our flexible Screener to mix filters like valuation, future growth, balance sheet strength and risk, or jump straight into our curated Investing Ideas for ready made shortlists.

Ambarella (AMBA)

Overview: Ambarella develops low power AI chips and software that let cameras, cars, robots, and other connected devices process video and run computer vision directly at the edge instead of in the cloud. Its systems on a chip combine AI processing, image and audio handling, and system control for uses such as automotive driver assistance, security cameras, telematics, and video conferencing.

Operations: Ambarella generates about US$405 million in revenue, all from its semiconductor solutions, with Taiwan as its largest reported market at roughly US$279 million, followed by Asia Pacific excluding Taiwan at about US$78 million.

Market Cap: US$3.6b

Ambarella sits at the intersection of physical AI, robotics, and smart cameras, with its CVflow chips powering edge AI for cars, security systems, and drones. Recent news highlights an agreement with Hanwha that has potential revenues above US$800 million spread over more than a decade. At the same time, the company is still loss making and relies heavily on IoT demand, a concentrated customer base, and external borrowing, with recent insider selling that some investors may treat as a caution flag. For readers building an AI small cap watchlist, the mix of record edge AI revenue, a sizeable long term partnership, and persistent profitability and funding risks makes Ambarella a stock that rewards closer reading of the details rather than headline momentum alone.

Ambarella’s edge AI story is accelerating, yet its loss making profile and heavy IoT exposure leave open questions. Get the 2 key rewards and 3 important warning signs and see whether that long term agreement changes the picture in ways the headlines miss

Penguin Solutions (PENG)

Overview: Penguin Solutions provides hardware, software, and services that help enterprises run intensive computing and AI workloads, from GPU based data center infrastructure and edge systems to high performance memory and LED components sold under brands such as Stratus, SMART Modular Technologies, and Cree LED.

Operations: Penguin Solutions generates about US$1.5b in revenue, with roughly US$715 million from Integrated Memory, US$543 million from Advanced Computing, and US$244 million from its Optimized LED segment.

Market Cap: US$2.8b

Penguin Solutions sits at the heart of the AI hardware build out, supplying advanced computing platforms, high performance memory, and LED products while tying them together with software like ClusterWareAI. Analysts expect strong earnings and revenue growth over the next few years. The company has recently become an NVIDIA AI Factory Specialized Partner and raised full year 2026 guidance. At the same time, earnings quality, heavy use of external borrowing, lumpy project based deals, and tariff exposure in LEDs all introduce real risk. For investors searching the AI Small Caps screener for infrastructure plays rather than pure software stories, Penguin Solutions is a stock that may warrant a closer look beyond the headlines and new leveraged ETF attention.

Penguin Solutions sits at the intersection of AI infrastructure, high performance memory, and LEDs. The real puzzle is how those pieces fit together across segments. Get the 4 key rewards and 3 important warning signs (2 are major!)

Seeking Fresh Alternatives Before Others Catch On

Markets move fast and the next breakout ideas do not stay under the radar for long. Tap into fresh stock shortlists before momentum gets away.

• Spot companies aiming to turn strong balance sheets into fresh momentum by scanning the list of solid balance sheet and fundamentals (50 results) while it still flies under most investors' radars.
• Explore potential dividend strength by checking the 8 dividend fortresses so you can review high yield candidates before they attract wider attention.
• Track companies tied to long term energy themes with the 90 nuclear energy infrastructure stocks and review them before interest changes.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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