2 Top Stocks Long-Term Investors Should Buy in May

The article argues Amazon and Shopify are attractive long-term buys, highlighting Amazon's Q1 2026 North America operating income up 43% on 12% sales growth and AWS revenue up 28%, alongside a $20 billion chip business run rate. Shopify is cited as growing revenue around 30% with a forward price-to-sales ratio below 8, supported by expanding payment processing, B2B, and agentic commerce opportunities. The piece is opinionated rather than event-driven, so the likely market impact is limited.

Analysis

AMZN is the cleaner “quality growth at a reasonable price” expression here, but the bigger second-order trade is that its logistics and AI stack are turning into an operating-system-level moat. The combination of retail automation, ad monetization, and externalized logistics means margin expansion can compound even if top-line growth normalizes; that matters because the market still tends to underwrite AMZN as a retail multiple with cloud optionality rather than as a three-engine cash generation machine. The key nuance: AWS acceleration is less about a single quarter and more about customers re-accelerating capex into inference and training, which should keep capex high and free cash flow choppy before it gets better.

SHOP is the more asymmetrical name because the AI commerce narrative is still underowned relative to the size of the implied revenue stream. If agentic shopping becomes real, the winners won’t just be the largest marketplaces; they’ll be the merchants with structured catalog data and payment rails that agents can transact against, which gives SHOP an embedded distribution edge without owning inventory. That said, this is a longer-duration catalyst and likely a multiple expansion story first, monetization second; the stock can rerate on narrative alone before usage data proves anything.

The main contrarian risk is that both names are being bid on “AI optionality,” but the path to monetization is uneven. For AMZN, heavy infrastructure spend could pressure near-term margins if AWS demand temporarily lags supply additions; for SHOP, agentic commerce may take longer than the market is pricing, especially if protocols fragment and large platforms try to keep transaction flow inside their own walled gardens. In that scenario, WMT and COST are not direct AI losers, but they become relative defensive beneficiaries if investors rotate out of expensive growth and back into durable traffic and pricing power.

Key Decisions for Investors

• Long AMZN vs short WMT as a 3-6 month relative-value pair: AMZN should compound faster on operating leverage and cloud reacceleration, while WMT is the higher-quality defensive but lower-upside crowding hedge.
• Buy SHOP on pullbacks for a 12-24 month horizon; target a 25-35% upside window if agentic commerce headlines continue, with the risk that the thesis stalls if merchant conversion data does not inflect by year-end.
• Sell short-dated out-of-the-money SHOP calls into strength or run a call spread: the narrative can outrun fundamentals in the near term, but implied volatility likely overstates the probability of immediate monetization.
• Add AMZN on any post-earnings margin-driven dip; use a 6-12 month horizon and look for a 15-20% move as external logistics and ads continue to surprise upward.
• If you want a defensive hedge against growth disappointment, own COST over WMT on a relative basis: better consumer quality and less dependency on multiple expansion, but cap upside because it’s already a crowded safety trade.