Credo Technology Group vs. Marvell Technology: Which Semiconductor Stock Is a Better Buy in 2026?

As data centers race to meet massive artificial intelligence demands, choosing the right connectivity provider is vital. Should you bet on Credo Technology Group (NASDAQ:CRDO) or the more established Marvell Technology (NASDAQ:MRVL)?

Credo focuses on power-efficient, high-speed connectivity solutions for hyperscale data centers, prioritizing speed and energy savings. Marvell provides a broader platform of data infrastructure across networking, storage, and custom computing. Both companies are central to the modern digital backbone, yet they offer distinct profiles for investors seeking exposure to the semiconductor industry.

The case for Credo Technology Group

Credo specializes in high-speed copper and optical interconnect solutions designed specifically for the rigorous demands of massive artificial intelligence infrastructure. The company is an increasingly prominent player among semiconductor stocks, prioritizing industry-leading power efficiency and cost-effective data transfer for hyperscale data centers. Its latest annual report highlights deep technical partnerships with major players like Oracle (NYSE:ORCL) and Microsoft (NASDAQ:MSFT), though its top 10 clients generate roughly 90% of revenue.

In FY 2026, revenue reached nearly $1.3 billion, representing an explosive growth rate of approximately 205.7% as demand for AI-related hardware surged globally. This rapid expansion was accompanied by a significant increase in profitability, with the company reporting net income of close to $472.3 million for the fiscal year. This reflects a healthy net margin, which is the percentage of revenue remaining after all expenses are paid, of roughly 35.4%, a massive improvement from previous years.

As of its May 2026 balance sheet, Credo maintained a strong financial position with a debt-to-equity ratio of 0.0x. This ratio measures total debt against shareholder equity, and a zero value indicates the company has virtually no debt. Note that stock-based compensation represented roughly 39.3% of operating cash flow, which inflates reported cash generation since SBC is a non-cash expense added back in the cash flow statement.

The case for Marvell Technology

Marvell provides essential data infrastructure solutions that span high-performance compute, networking, security, and storage for diverse global markets. The company has moved aggressively into the artificial intelligence space, notably through an expanded strategic partnership with Alphabet (NASDAQ:GOOGL) that covers accelerators and storage through 2033. Like its smaller peer, Marvell manages significant customer concentration, with its top ten clients accounting for nearly 82% of net revenue during the most recent fiscal period.

In FY 2026, Marvell's revenue grew to approximately $8.2 billion, an increase of roughly 42.1% from the previous year as its data center segment gained momentum. This growth helped the company swing back to robust profitability, posting net income of close to $2.7 billion after several years of reporting net losses. The resulting net margin was approximately 32.6%, suggesting the company is effectively translating its rising enterprise and cloud revenue into bottom-line earnings for shareholders.

According to its January 2026 balance sheet, the company carries a debt-to-equity ratio of approximately 0.3x. This ratio measures total debt against shareholder equity, and this low figure suggests a conservative use of borrowed money. Note that stock-based compensation represented roughly 33.8% of operating cash flow, which inflates reported cash generation since SBC is a non-cash expense added back in the cash flow statement.

Risk profile comparison

Credo faces substantial customer concentration risk, relying heavily on a few cloud infrastructure providers that could shift their purchasing patterns at any time. The company competes in a crowded market against much larger, better-resourced rivals including Broadcom (NASDAQ:AVGO) and Astera Labs (NASDAQ:ALAB). It also relies on Taiwan Semiconductor Manufacturing Company (NYSE:TSM) for all of its manufacturing, leaving it vulnerable to geopolitical tensions and the inherent volatility of the global semiconductor cycle.

Marvell is also exposed to high revenue concentration within the data center market and depends on a limited number of major clients for its long-term success. The company faces a growing threat from large hyperscalers that may choose to develop their own internal chips, potentially reducing demand for merchant solutions. Furthermore, its aggressive acquisition strategy involves significant integration risks and potential asset impairments, while manufacturing stability in Taiwan remains a constant macroeconomic concern.

Valuation comparison

Credo appears cheaper based on its Forward P/E, which compares price to future earnings estimates, and its P/S ratio.

Valuation metrics sourced from Financial Modeling Prep (FMP) and may differ from other data providers.

Which stock would I buy in 2026?

I'd go with Credo Technology, though Marvell is a harder company to walk away from than its premium valuation implies. Marvell just posted record revenue, guided for accelerating growth through the rest of the year, and secured a $2 billion strategic investment from Nvidia, signaling its custom AI chip business is now becoming indispensable. For a long-term investor who values scale and a diversified customer base, Marvell is a strong choice.

But Credo is outpacing nearly every growth metric in the semiconductor industry right now. It just delivered its seventh straight quarter of triple-digit revenue growth, a streak that means the company has more than doubled its sales year over year, quarter after quarter. It is pulling that off while posting nearly 50% net margins, a level of profitability that most technology companies spend years working toward. And full-year guidance pointing to more than 85% growth suggests there is still a long runway ahead. Its connectivity chips and optical products are becoming essential inside the AI data centers being built by every major hyperscaler.

Customer concentration is the one risk worth watching closely for both companies. But for a long-term investor comfortable with that trade-off, Credo's growth trajectory is simply in a different league right now.

Sara Appino has positions in Taiwan Semiconductor Manufacturing. The Motley Fool has positions in and recommends Alphabet, Broadcom, Marvell Technology, Microsoft, Oracle, and Taiwan Semiconductor Manufacturing. The Motley Fool recommends Astera Labs. The Motley Fool has a disclosure policy.