AMZN vs FAST: How Amazon and Fastenal Compare (2026)

Last updated July 2026

Short answer

AMZN is the larger of the two ($2.46T market cap): the incumbent the market prices for continued execution (23.02x forward earnings, beta 1.46). FAST is the smaller challenger ($54.42B), actually pricier on forward earnings (33.98x): more room to run, but more to prove. The real question is which set of drivers you believe, and whether owning one (or both) leaves you over-concentrated.

AMZN vs FAST: the tie-breaker metrics

Same yardstick, side by side (as of July 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.

MetricAMZNFASTWhat it tells you
Market cap$2.46T$54.42BSize. The larger name is the incumbent; the smaller has more room to grow and more to prove.
Forward P/E23.0233.98Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up.
Trailing P/E27.3140.53Valuation on the last 12 months. A big drop from trailing to forward means the market expects earnings to jump, so more growth is already in the price.
Beta1.460.71Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through.
Price vs 52-week range39% of range72% of rangeWhere today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why.
Price / book5.5613.37How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price.

Reading it: AMZN 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.

Before you buy: how AMZN and FAST affect your concentration

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 FAST 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 FAST 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.

What does Amazon (AMZN) do?

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

What does Fastenal (FAST) do?

Fastenal is a leading industrial distributor that supplies fasteners (bolts, nuts, screws) and a broad range of maintenance, repair, and operations (MRO) products such as tools, safety equipment, cutting tools, fluids, and janitorial supplies to manufacturers, construction firms, and other businesses. While fasteners are its heritage and namesake, the company today derives a majority of revenue from non-fastener industrial and MRO products. Fastenal's competitive edge comes from being physically close to its customers: it operates thousands of branches and, increasingly, on-site locations placed directly inside customers' facilities, plus a fast-growing network of industrial vending machines that dispense supplies right on the shop floor. This high-touch, high-service model creates sticky relationships and recurring revenue, since customers rely on Fastenal to keep production lines stocked. The company makes money on the markup between what it pays suppliers and what it charges customers, with vending, on-site programs, and e-commerce deepening those relationships. Fastenal is headquartered in Winona, Minnesota, and is a member of the S&P 500.

Full FAST guide

AMZN vs FAST: how do they differ?

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.
  • FAST drivers: On-site and vending growth; Sticky distribution model.

Which fits which kind of investor

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 FAST, fastenal's revenue is closely tied to industrial production, manufacturing activity, and the broader economy, so recessions or manufacturing slowdowns directly pressure sales and same-store growth.

AMZN or FAST: which should you pick?

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; FAST 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 FAST guides.

AMZN vs FAST: the full fundamentals

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.

FAST. Fastenal trades at a premium multiple for an industrial distributor, reflecting its consistent execution, high returns on capital, sticky on-site and vending model, and reliable dividend growth. The market pays up for the quality and recurring nature of its revenue, which makes the valuation sensitive to any slowdown in industrial activity or same-customer growth.

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; FAST shows revenue (ttm) ~$7.5-8 billion, operating margin ~20%, revenue growth Mid-single-digit, cyclical with industry, return on invested capital High, consistently strong.

The bottom line: AMZN vs FAST

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

Wondering how AMZN or FAST fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.

Investing in Amazon with AI

Connect the broker you already use and ask Walnut's AI how AMZN fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.

FAQ

What is the difference between AMZN and FAST?

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Amazon is one of the largest companies in the world, operating across three major business lines. Fastenal is a leading industrial distributor that supplies fasteners (bolts, nuts, screws) and a broad range of maintenance, repair, and operations (MRO) products such as tools, safety equipment, cutting tools, fluids, and janitorial supplies to manufacturers, construction firms, and other businesses. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.

Is AMZN or FAST the better stock?

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Neither is universally better. AMZN is the larger incumbent; FAST is the smaller challenger and looks pricier on forward earnings. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.

Which is cheaper, AMZN or FAST?

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On forward P/E (as of July 2026), AMZN trades at 23.02x and FAST at 33.98x, so AMZN is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.

Should you own both AMZN and FAST?

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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.

What are the risks of AMZN vs FAST?

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AMZN: Hyperscaler AI capex is concentrated; if model training demand cools, AWS growth slows. Regulatory pressure on Amazon's third-party marketplace practices (FTC) remains active. FAST: Fastenal's revenue is closely tied to industrial production, manufacturing activity, and the broader economy, so recessions or manufacturing slowdowns directly pressure sales and same-store growth. It faces competition from large distributors like Grainger and MSC Industrial, from manufacturers' direct channels, and from e-commerce players including Amazon Business that can undercut on price and convenience. Inflation in product and labor costs, pricing pressure, and supply-chain disruptions can squeeze margins. The stock often trades at a premium valuation, so any growth deceleration can weigh on the price. Tariffs, customer concentration in cyclical industries, and the need to keep investing in branches, vending, and technology add further risk.

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Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell AMZN or FAST; figures are approximate and dated (as of July 2026). Verify current data before investing.

    AMZN vs FAST: How Amazon and Fastenal Compare (2026), Walnut