Market forecasts global hyperscale data center capital expenditure to reach $1 trillion in 2027.

Nvidia is the primary provider of AI computing units, positioned to make significant profits.

Broadcom expects custom AI chips to experience substantial growth in 2027.

So long as Western Digital's core products remain in short supply, it will continue to thrive.

In 2026, the market anticipates record capital expenditures from the four major artificial intelligence (AI) hyperscale cloud service providers. Some of these companies have already raised their 2026 guidance, though at the beginning of the year, this figure stood at $650 billion.

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This represents massive capital being deployed across data centers and dispersed among multiple companies. However, 2026 is merely the beginning.

Multiple estimates suggest that capital expenditures will rise year-over-year through 2030, delivering years of exceptional growth for companies in this sector. Next year, spending is expected to expand further, with Nvidia (Nasdaq: NVDA) informing investors that it anticipates data center capital expenditures will reach $1 trillion. Nvidia likely possesses better visibility into future demand than individual investors, so giving credence to Nvidia's projections may be prudent.

If data center capital expenditures reach $1 trillion next year, multiple stocks will benefit. I am bullish on three in particular, though countless others exist.

Let us start with the company that first disclosed this news: Nvidia. Nvidia is the industry leader in AI computing across all dimensions. Having become the world's largest company due to growth from massive spending on AI data centers, Nvidia is far from finished growing. Wall Street analysts expect Nvidia's revenue to grow 81% in fiscal 2027 (ending January 2027), and 41% the following year. Trading at 31 times trailing earnings, Nvidia stock does not currently reflect this growth trajectory—it appears simply as an ordinary large technology company.

This leaves ample room for significant upside, making Nvidia a must-buy stock today.

Nvidia is not the only chipmaker poised to profit from next year's massive expansion. Broadcom (Nasdaq: AVGO) is another company in this sector, pursuing a different approach. It manufactures custom AI chips designed specifically for end users. Broadcom's major customers include Alphabet, Meta Platforms, Anthropic, and OpenAI. All of these companies own custom AI chips designed with Broadcom's assistance, and are expected to achieve significant new growth in 2027.

Wall Street expects Broadcom's revenue to grow 66% in fiscal 2026 (ending November) and 62% in fiscal 2027, driven primarily by strong performance in its AI semiconductor business, with revenue expected to exceed $100 billion next year. This will propel the stock price higher, making Broadcom an excellent buy now, before next year's data center spending materializes.

Western Digital (Nasdaq: SNDK) has delivered remarkable performance over the past year. The stock is up approximately 700% year-to-date, naturally raising the question of how Western Digital can rise further from here.

A critical component of data centers is long-term data storage. Nearly all data centers rely on solid-state drives (SSDs) for this purpose, and due to unprecedented AI demand, these devices are experiencing industry-wide shortages. With data center spending expected to expand again in 2027, this supply pressure will likely persist.

Western Digital manufactures these devices, and with supply extremely tight, prices have surged, boosting Western Digital's performance.

For fiscal 2026 Q4 (ending June 2026), Wall Street analysts expect revenue growth of 336%. For fiscal 2027, the company anticipates revenue growth of 122%. This easily makes it the fastest-growing stock on this list. As long as SSD shortages persist in the market, Western Digital's revenue and profits will continue to surge, positioning it as an easy choice heading into the next wave of data center spending.

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Keithen Drury holds positions in Alphabet, Amazon, Broadcom, Meta Platforms, Microsoft, and Nvidia. The Motley Fool owns and recommends Alphabet, Amazon, Apple, Broadcom, Meta Platforms, Microsoft, and Nvidia. The Motley Fool has a disclosure policy.