AMZN vs EBAY: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of October 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: EBAY is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. AMZN and EBAY share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined AMZN and EBAY exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Amazon is one of the largest companies in the world, operating across three major business lines. Amazon Web Services (AWS) is the dominant global cloud computing provider, with quarterly sales of $42.2 billion in the June 2026 quarter (an annual run rate of roughly $170 billion) and most of the company's operating income. The North America and International e-commerce segments include the Amazon online marketplace, Prime membership, and third-party seller services. Advertising has grown into the third-largest digital ad business in the world (after Google and Meta), at $19.8 billion in the June 2026 quarter alone.

Full AMZN guide

eBay Inc operates one of the largest global online marketplaces, connecting buyers and sellers across roughly 190 markets without holding inventory itself. Its economics come from marketplace take rates (final value fees), managed payments, and a rapidly scaling advertising business, giving it high operating margins and strong free cash flow. In recent years management has narrowed its focus onto enthusiast and recommerce 'focus categories' such as collectible trading cards, luxury handbags and watches, motor parts and accessories, sneakers, and refurbished electronics, layering in authentication and grading integrations (for example working with grading partners on cards) to win serious buyers away from generic marketplaces.

Full EBAY guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• AMZN drivers: AWS as the AI infrastructure backbone; Retail margin expansion.
• EBAY drivers: Focus categories and recommerce; Advertising monetization.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Hyperscaler AI capex is concentrated; if model training demand cools, AWS growth slows. For EBAY, overall buyer growth has been relatively flat, so much of the reported acceleration leans on advertising and structural or acquisition-driven changes rather than clearly broader underlying activity.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick AMZN if you believe its drivers more; EBAY if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the AMZN and EBAY guides.

AMZN. Amazon's trailing P/E fell to about 20x by October 2026, but mostly because one-time gains on its Anthropic stake swelled net income, not because the stock got cheaper; on forward estimates it trades near 24x, still well below the ~40x of early 2026. The valuation premium is paid for AWS and advertising; retail is essentially valued near cost. The open question is whether AWS growth near 37% justifies capex that has pushed free cash flow below zero, and the October 29 report is the next read on that.

EBAY. In Q2 2026 eBay reported revenue of about $3.13 billion and non-GAAP EPS of $1.60, after Q1 revenue of about $3.09 billion and EPS of $1.66. At about $121.56 the stock trades near 26 times trailing and 18 times forward earnings, and about 19 times EV to EBITDA, a premium to where it sat before the 2026 rally. Analysts expect 2026 EPS of about $6.13 and 2027 EPS of about $6.71, which implies steady rather than explosive growth.

Headline figures (approximate, October 2026): AMZN shows revenue (ttm) ~$776 billion (June 2026 quarter up ~20% YoY), operating margin ~13.7% (AWS materially higher; retail much lower), net income (ttm) ~$135 billion (includes large Anthropic investment gains), eps (ttm) ~$12.43; EBAY shows revenue (ttm) ~$12.0B, up ~15% in Q2 2026, net income (ttm) ~$2.2B (profit margin ~19%), q2 2026 eps vs estimate ~$1.60 vs ~$1.51, market cap ~$54B.

AMZN and EBAY are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined AMZN and EBAY exposure against your real portfolio. It is not an investment adviser.