Two Unstoppable Tech Growth Stories Worth Holding Through 2026 and Beyond

In the world of investing, truly unstoppable companies are rare. Yet certain stocks possess qualities that set them apart: robust competitive advantages—such as powerful brands and high customer switching costs—combined with strategic optionality that allows them to pivot into new, profitable directions. Nvidia and MercadoLibre exemplify this rare combination, each demonstrating powerful growth trajectories with substantial runway ahead, while still trading at attractive valuations relative to their long-term prospects.

Nvidia: An Unstoppable Force in the AI Infrastructure Revolution

Nvidia (NASDAQ: NVDA) commands a market valuation of approximately $4.6 trillion, positioning it as the world’s largest semiconductor company by value. The company has evolved dramatically from its gaming-focused roots to become the cornerstone of AI infrastructure. Today, its graphics processing units (GPUs) power the data centers where the vast majority of artificial intelligence computing happens globally.

The growth metrics tell a compelling story: third-quarter revenue surged 62% year over year, while net income climbed 65%. This isn’t merely impressive—it reflects sustained momentum in a market that’s still in its infancy. One analyst foresees the company expanding to a $10 trillion valuation by 2030, achieved partly through strategic partnerships that could make Nvidia not just a chip supplier, but a vertically integrated player offering chips, software, and networking solutions across the AI ecosystem.

What makes Nvidia particularly unstoppable is its positioning at the intersection of inevitable trends. As data centers multiply and AI applications proliferate across industries, demand for GPU processing power continues accelerating. The company’s forward price-to-earnings ratio of 24 looks especially attractive compared to its five-year average of 37, suggesting the market hasn’t fully priced in the long-term opportunity ahead.

MercadoLibre: Building an Unstoppable Fintech Ecosystem in Latin America

MercadoLibre (NASDAQ: MELI), valued at $116 billion, functions as a hybrid platform combining the best elements of Amazon and PayPal. Operating across 18 countries, it offers a comprehensive ecosystem where individuals and businesses can buy, sell, advertise, access credit and insurance, transfer money, and manage payments both digitally and offline.

The scale is already impressive: 77 million unique active buyers and 72 million monthly fintech service users, with both figures expanding by more than 25% annually. Third-quarter results showed net revenue up 39% year over year with a 5.7% net profit margin—demonstrating both growth and profitability. The stock trades at a forward P/E of 31, well below its five-year average of 64, suggesting meaningful undervaluation.

What makes MercadoLibre’s story particularly unstoppable is the vast whitespace before it. Latin American e-commerce penetration stands at roughly 15%—far below developed markets. As digital adoption accelerates across the region, MercadoLibre’s established ecosystem positions it to capture the lion’s share of growth. Beyond marketplace dynamics, its fintech division offers additional optionality, allowing the company to pursue diverse revenue streams from payments, lending, and financial services.

Why These Companies Offer Unstoppable Long-Term Value

Both companies share the defining characteristics of unstoppable performers: they possess durable competitive advantages, command premium market positions in their respective domains, offer significant growth runways, and trade at reasonable valuations relative to their prospects. Historical precedent matters here. Consider that a $1,000 investment in Netflix on the day Motley Fool recommended it in December 2004 would have grown to $450,256 by January 2026. That same $1,000 invested in Nvidia when it received the Stock Advisor recommendation in April 2005 would have ballooned to $1,171,666.

These aren’t guarantees—they’re illustrations of what compounding at scale can deliver when you identify companies before their biggest growth chapters unfold. For investors with multi-year horizons, Nvidia and MercadoLibre represent the type of unstoppable growth vehicles worth serious consideration. Both have the scale, the competitive positioning, and the market tailwinds to deliver outsized returns for patient investors willing to hold through market cycles.