AMZN vs TDC: How Amazon and Teradata Compare (2026)

Same yardstick, side by side (as of August 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: TDC 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 TDC 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 TDC 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, generating around $110 billion in annual revenue 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).

Full AMZN guide

Teradata Corporation sells a massively parallel analytics database and the software around it. Its VantageCloud platform runs large-scale enterprise analytics across AWS, Azure and Google Cloud as well as on customer-owned hardware, with ClearScape Analytics for in-database machine learning and, since 2026, an Autonomous Knowledge Platform aimed at putting AI agents into production against governed enterprise data. The customer base skews to very large, data-heavy institutions in banking, telecommunications, retail, healthcare and government, many of which have run Teradata systems for decades. Spun out of NCR in 2007 and headquartered in San Diego, the company converted from perpetual licenses to subscriptions years ago, so roughly 89% of revenue is now recurring.

Full TDC 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.
• TDC drivers: Public cloud ARR migration; Agentic AI and the hybrid angle.

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 TDC, the core risk is secular: Teradata's on-premises installed base is shrinking, and total revenue has been flat to down for several years, with Q3 2026 revenue guided 4% to 6% lower year over year.

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; TDC 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 TDC guides.

AMZN. Amazon's headline P/E reflects the aggregate of low-margin retail and high-margin AWS/advertising. The valuation premium is paid for AWS specifically; retail is essentially valued near cost. P/E of 40x is elevated versus the S&P 500 average (~22x), supported by AWS growth re-accelerating.

TDC. Teradata screens as a deep-value software name: an enterprise value near $2.2 billion against ~$1.69 billion of revenue and guided adjusted free cash flow of ~$330 million to ~$350 million. The trailing P/E near 5x is misleading because GAAP earnings include a ~$315 million after-tax SAP settlement benefit; the forward multiple of roughly 10x on non-GAAP EPS guidance of $2.65 to $2.73 is the more representative figure. Analyst consensus sits around a hold rating with an average price target in the mid-$30s.

Headline figures (approximate, early 2026): AMZN shows revenue (ttm) ~$650 billion, operating margin ~10% (AWS materially higher; retail much lower), net income (ttm) ~$60 billion, eps (ttm) ~$5.50; TDC shows revenue (ttm) ~$1.69B, q2 2026 revenue ~$410M (flat YoY), public cloud arr ~$686M (+8% YoY), total arr ~$1.51B (+1% YoY).

AMZN and TDC 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 TDC exposure against your real portfolio. It is not an investment adviser.