AMZN vs SOUN: Which Is the Better Buy in 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.

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 SOUN 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 SOUN 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

SoundHound AI builds independent voice and conversational AI technology: speech-to-meaning understanding, an agentic AI platform (branded around Amelia and its newer OASYS orchestration system), and voice commerce that lets people order food, make reservations, or pay for services by talking to a car, TV, or drive-thru. Its business spans three main areas: automotive in-vehicle assistants (often running at the edge on hardware like NVIDIA DRIVE), restaurant ordering and drive-thru automation for quick-service chains, and enterprise customer-service automation. The pending acquisition of LivePerson would add digital messaging and a large enterprise customer base, pushing SoundHound toward an omnichannel conversational AI platform.

Full SOUN 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.
• SOUN drivers: Agentic AI and voice commerce; Automotive and IoT momentum.

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 SOUN, soundHound is not profitable and analysts generally do not expect it to reach profitability for several years, so the LivePerson integration and OASYS rollout could keep operating expenses elevated.

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; SOUN 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 SOUN 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.

SOUN. SoundHound posted record Q1 2026 revenue of about $44.2 million (up roughly 52%) but remained unprofitable, with a GAAP net loss around $25 million and adjusted EBITDA still negative. The company reaffirmed full-year 2026 guidance of roughly $225 million to $260 million and pointed to about $350 million to $400 million in 2027 including LivePerson. Even after compression from prior peaks, the price-to-sales multiple near 15x is well above typical software names, reflecting a valuation built on expected growth rather than current earnings.

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; SOUN shows revenue (q1 2026) ~$44.2M, revenue growth (yoy) ~52%, fy2026 revenue guidance ~$225M to $260M, cash and equivalents ~$216M (no debt).

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