Best Stock to Buy Right Now: Costco vs. Amazon

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Costco (NASDAQ: COST) and Amazon (NASDAQ: AMZN) are two of the world's most resilient retailers. Costco's warehouse stores attract a lot of shoppers with its bulk discounts, and it locks them in with its paid memberships. Amazon is the world's largest e-commerce company, and it maintains a wide moat by providing steep discounts, cheap shipping options, and more perks to over 200 million Prime members worldwide.

Costco's focus on bulk purchases, sticky memberships, and constant brick-and-mortar expansion in the U.S. and overseas markets shielded it from Amazon's growth as other brick-and-mortar retailers retreated. Amazon also leveraged its cloud business' higher-margin revenues to subsidize the expansion of its lower-margin e-commerce business -- and that unique strategy gave it an edge against many of its brick-and-mortar retail competitors.

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A shopper pushes a shopping cart with a seated toddler in a warehouse store.
Image source: Getty Images.

Over the past three years, Costco's stock soared 80%, as Amazon's stock only advanced 13%. Let's see why the wholesale retailer outperformed Amazon by such a wide margin -- and if it will remain the better buy for the foreseeable future.

Why did the bulls love Costco?

Costco's long-term expansion has been mainly driven by its new store openings, steady comparable sales, growth in cardholders, and high renewal rates. It's consistently checked all four of those boxes from fiscal 2020 to fiscal 2024 (which ended this September).

Metric

FY 2020

FY 2021

FY 2022

FY 2023

FY 2024

Total store count growth (YOY)

1.5%

2.8%

2.6%

2.7%

3.5%

Comparable sales* growth (YOY)

9.2%

13.4%

10.6%

5.2%

5.9%

Cardholder growth (YOY)

7.1%

5.8%

6.5%

7.6%

7%

Worldwide renewal rate*

88.4%

88.7%

90.4%

90.4%

90.5%

Data source: Costco. *Excluding gas and foreign exchange. YOY = Year-over-year.

From fiscal 2020 to fiscal 2024, Costco's revenue grew at a compound annual growth rate (CAGR) of 11% as its EPS rose at a CAGR of 16%. Its growth accelerated in fiscal 2021 and fiscal 2022 as the pandemic drove more people to stock up on packaged foods and consumer staples, but it continued growing over the following two years, even as inflation curbed consumer spending. It also recently raised its membership fees for the first time in seven years to offset that pressure.

Costco's growth rates aren't jaw-dropping, but its resilience, scale, and stickiness make it a good safe-haven investment. From fiscal 2024 to fiscal 2027, analysts expect its revenue and EPS to rise at a CAGR of 7% and 10%, respectively. That outlook is stable, but its stock looks a bit pricey at 50 times this year's earnings.