Instead of mirroring Amazon’s capital-intensive, fully-owned logistics network, MercadoLibre adopted a flexible hybrid model. It owns the core infrastructure but partners with local services for last-mile delivery, achieving speed and reliability without the massive capex burden.

Traditional valuation models assume growth decays over time. However, when a company at scale, like Databricks, begins to reaccelerate, it defies these models. This rare phenomenon signals an expanding market or competitive advantage, justifying massive valuation premiums that seem disconnected from public comps.

While a strong business model is necessary, it doesn't generate outsized returns. The key to successful growth investing is identifying a Total Addressable Market (TAM) that consensus views as small but which you believe will be massive. This contrarian take on market size is where the real alpha is found.

Contrary to the instinct to sell a big winner, top fund managers often hold onto their best-performing companies. The initial 10x return is a strong signal of a best-in-class product, team, and market, indicating potential for continued exponential growth rather than a peak.

MercadoLibre built its payment system, MercadoPago, out of necessity in a market lacking a trusted digital payment solution. This created a powerful, integrated commerce and payments flywheel that fueled adoption and established a moat that competitors like Amazon struggled to overcome.

High customer concentration risk is mitigated during hypergrowth phases. When customers are focused on speed and market capture, they prioritize effectiveness over efficiency. This provides a window for suppliers to extract high margins, as customers don't have the time or focus to optimize costs or build in-house alternatives.

The company's declining operating margins post-2017 were not a sign of weakness but a deliberate strategy. Management aggressively reinvested profits into logistics and payments, temporarily compressing margins to solidify long-term market dominance and build a powerful competitive moat.

Companies like Amazon (from books to cloud) and Intuitive Surgical (from one specific surgery to many) became massive winners by creating new markets, not just conquering existing ones. Investors should prioritize businesses with the innovative capacity to expand their TAM, as initial market sizes are often misleadingly small.

Financial models struggle to project sustained high growth rates (>30% YoY). Analysts naturally revert to the mean, causing them to undervalue companies that defy this and maintain high growth for years, creating an opportunity for investors who spot this persistence.