The artificial intelligence (AI) revolution represents a fundamental transformation that may be unprecedented in human history. This technological shift promises to reshape how society operates and create value across every sector of the economy. To this point, a research report by PwC Global projects AI's total economic impact will reach $15.7 trillion by 2030, with $6.6 trillion coming from productivity gains and $9.1 trillion from consumption effects.

How can investors capitalize on this powerful trend? Two tech giants stand at the forefront of this tech transformation, each maintaining near-monopolistic positions in crucial segments of the AI value chain. Below I'll examine how these industry leaders have built enduring competitive advantages in AI development and manufacturing that make their stocks compelling long-term holdings.

An AI hologram projected on top of a circuit board.

Image source: Getty Images.

The AI acceleration powerhouse

Nvidia (NVDA -2.09%) leads the AI computing market through its graphics processing units (GPUs) and proprietary CUDA software platform. The company's comprehensive ecosystem has locked down an estimated 70% to 95% market share in AI accelerators, defining the standard for AI development.

How did we get here? Nvidia transformed its gaming-focused parallel processing capabilities into the backbone of AI computing. While multiple tech giants scramble to catch up, Nvidia's early lead in AI hardware and its proprietary CUDA platform creates enormous switching costs -- in terms of both money and time -- for its customers.

This dominance isn't cheap, however. Nvidia stock commands a premium at 30.5 times forward earnings. Yet the market's high expectations may still undervalue its long-term potential.

The global race to build AI data centers has only begun. As cloud providers and enterprises worldwide accelerate their AI deployments, Nvidia stands ready to power the next decade of innovation. This AI chipmaker, in turn, screens as a top buy-and-hold play.

A manufacturing marvel

ASML Holding (ASML -0.32%) is the only company producing extreme ultraviolet (EUV) lithography machines, which are essential equipment for manufacturing advanced semiconductors. The company's sophisticated machines contain more than 100,000 parts each and require multiple 747 cargo planes for delivery, highlighting the incredible complexity of their technology.

ASML's technological leadership stems from decades of innovation and close partnerships with research institutions and suppliers. A single EUV machine takes 12 to 18 months to assemble, costs up to $380 million, and embodies such intricate engineering that no single person can fully comprehend its entire operation.

Like Nvidia, investors pay a premium for ASML's wide technological moat, with shares trading at 28.7 times forward earnings. This premium to the S&P 500's 24.1 times forward multiple seems justified, given ASML's unique competitive position and critical role in the AI value chain.

Recent company guidance projects strong growth driven by AI data center expansion, with management expecting AI server markets to reach $350 billion by 2030. As a result, Morningstar analyst Javier Correonero anticipates EUV spending will grow at a robust 16% annually through the end of the decade, making ASML stock an exceptional candidate for AI-focused investors seeking long-term value creation.

The long view

Artificial intelligence promises to reshape the global economy in ways that may exceed even current ambitious projections. While the timing remains uncertain, experts suggest that achieving artificial general intelligence (AGI) could compress a century of technological advancement into just five years.

Both Nvidia and ASML have built formidable competitive advantages in critical segments of the AI hardware chain. Their near-monopolistic positions and continuous technological innovation make them compelling candidates to benefit from AI's exponential growth trajectory. In a world potentially racing toward AGI, these industry leaders appear perfectly positioned to drive what could become the most transformative period in human history.