I've been thinking about Amazon's next decade, and honestly, the investment case still looks solid to me. Let me break down why.

First, the obvious point: this company's growth story is nowhere near finished. We're talking about a business that's simultaneously dominant in e-commerce, crushing it in advertising, and leading the cloud computing space. That's a rare combination. The ad business alone is accelerating—Q3 2025 saw 22% year-over-year growth. But here's what really matters: AWS and AI. According to CEO Andy Jassy, roughly 85% of IT spending still hasn't migrated to the cloud. That's massive runway. And now customers are increasingly asking to run AI workloads on AWS because of its security and performance advantages. This isn't hype; it's actual demand.

What's also worth noting is how the company's operational discipline has improved. Forecasts for 2025 operating income hit $79.9 billion—that's 249% higher than 2020. Amazon used to be all about growth at any cost. Now it's growing AND getting profitable. That's a meaningful shift.

But let's talk about the elephant in the room: valuation. At a P/E of 35, Amazon looks expensive compared to the S&P 500's 25.7 multiple. I get why some investors hesitate. However, here's the thing most people miss: Amazon deliberately suppresses reported earnings by reinvesting aggressively into new initiatives, products, and entire business lines. The company's actual earning power is probably significantly higher than what shows up in SEC filings. You can't just compare P/E ratios without understanding that strategic choice.

When I think about Amazon stock's outlook over the next decade, the real question isn't whether the company will be bigger and more profitable by 2036. It's almost impossible to imagine it won't be, given the tailwinds in cloud adoption, AI integration, and digital advertising. The company has genuine competitive advantages—network effects, scale, infrastructure—that are incredibly difficult to replicate.

Yes, the stock isn't cheap. But for a 10-year horizon, I think buying remains the right call. The company's positioned in secular growth trends that are just getting started. Cloud adoption is accelerating, AI is moving from experimental to production workloads, and e-commerce still has room to run globally.

The risk is obvious: you're betting on execution and continued dominance. But for long-term investors comfortable with a premium valuation for a genuinely high-quality business, Amazon still deserves a place in the portfolio. Just don't expect the same 715% returns we saw over the past decade—but solid double-digit annual returns? That seems reasonable for the next 10 years.