Marvell Technology vs. SK Hynix: Which Tech Stock Is a Better Buy for 2027?

The artificial intelligence (AI) boom is driving massive demand for data center infrastructure, making it difficult for investors to choose the best winners. Deciding between Marvell Technology (NASDAQ:MRVL) and SK hynix (NASDAQ:SKHY) requires a closer look.

Marvell provides the networking and custom silicon brains that allow data to move efficiently, while SK Hynix supplies the high-speed memory required for heavy AI processing. Both companies occupy critical spots in the tech stack, but their financial profiles and market valuations vary significantly, creating two distinct paths for long-term investors.

The case for Marvell Technology

Marvell Technology provides critical data-infrastructure chips for the AI, cloud, and automotive markets. The company designs specialized solutions for networking and accelerated compute, making it a prominent player among semiconductor stocks. Customer concentration adds a layer of risk to the business, as a major distributor accounted for roughly 37% of revenue and one direct customer represented nearly 14% of revenue in its most recent fiscal year.

On a trailing-12-month (TTM) basis, revenue reached nearly $9.4 billion in the July fiscal quarter, representing an increase of approximately 30% compared with the prior fiscal year. The company reported net income of roughly $2.6 billion, which equals a net margin of close to 28%.

As of its July 2026 balance sheet, the debt-to-equity ratio is approximately 0.3x, showing that total debt is low relative to shareholder equity. The current ratio stands at about 3.1x, indicating a strong ability to cover short-term debts with short-term assets.

TTM free cash flow, which is cash from operations minus capital expenditures, was roughly $1.7 billion. However, stock-based compensation accounted for roughly 33.8% of operating cash flow, inflating reported cash generation since SBC is a non-cash expense added back in the cash flow statement.

The case for SK Hynix

SK Hynix is a global leader in memory semiconductors, producing the DRAM and NAND Flash products that serve as the foundation for AI-era computing. The business serves a global customer base, providing high-bandwidth memory chips that power the world's most advanced data centers. It competes in a high-stakes market where technological leadership directly dictates market share.

TTM revenue reached nearly $122 billion as of the June quarter, roughly a 114% increase over the year-ago period. Net income for the period was roughly $104 billion. This performance highlights the intense demand for high-performance memory components used in server environments.

As of its June 2026 balance sheet, the company carries a debt-to-equity ratio of approximately 0.1x. Its current ratio is close to 2.6x, suggesting the company maintains sufficient liquidity to meet its immediate financial obligations.

TTM free cash flow, which is cash flow from operations minus capital expenditures, reached $59 billion, providing ample capital for the business to reinvest in new manufacturing technology.

Risk profile comparison

Marvell Technology faces significant revenue concentration, as its top 10 customers accounted for roughly 82% of net revenue in the latest fiscal year. The company also faces geopolitical risks and export restrictions related to China that could disrupt its supply chain or demand. Additionally, it faces competition from hyperscale cloud providers that may design their own silicon internally rather than buy from external vendors.

SK Hynix operates in the highly cyclical memory market, where component prices can fluctuate wildly based on global supply and demand. It competes against large rivals like Micron Technology and Intel in a race to produce faster components for the AI era. The company also relies on complex global supply chains that are vulnerable to regional political instability or manufacturing disruptions.

Valuation comparison

SK Hynix appears much cheaper than Marvell based on both earnings and sales multiples, suggesting the market is pricing in more future growth for Marvell.

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

Which stock would I buy for 2027 and beyond?

Both companies operate in a cyclical industry that occasionally experiences weak periods of growth. But I would buy Marvell stock over SK Hynix right now. Both stocks can outperform the market in 2027, but looking beyond next year, Marvell operates in a less cyclical segment of the semiconductor industry, providing greater visibility into long-term growth and shareholder returns.

Marvell just held its Investor Day in October, where management outlined a path for its custom chip business to reach $12 billion in revenue by fiscal 2029. This would be more than triple its custom revenue expected in fiscal 2028. This implies a strong growth ramp, as Marvell is shipping to all four U.S. hyperscalers.

Marvell has also issued a long-term target to reach $30 in earnings per share by fiscal 2031. So management expects growth in highly specialized AI products to drive healthy margins. This makes Marvell's current $202 share price, as of Oct. 30, look relatively inexpensive -- a forward earnings multiple of about 7x on the fiscal 2031 target.

If SK Hynix could sustain its current growth trajectory, it would be the better buy. The problem is that there is less long-term visibility into selling prices for its products, which are notorious for large swings driven by demand and supply. Competition has a lot to do with those swings, as memory and storage technology is largely a commodity, with little differentiation among SK Hynix and its competitors.

Marvell's revenue has historically been more predictable year-to-year than SK Hynix. With Marvell trading at a cheap valuation relative to its long-term potential, I would buy the stock right now.

John Ballard has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Intel, Marvell Technology, and Micron Technology. The Motley Fool has a disclosure policy.