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Quality score · COST · Consumer Staples

Is Costco a quality business?

Runs membership warehouse clubs, earning much of its profit from membership fees rather than from the goods on the shelves.

7.8/ 10
High quality
as of September 11, 2026
Profitability
7.0 Average
Solvency
9.2 Strong
Growth
6.3 Average
Efficiency
8.3 Strong
Predictability
8.7 Strong
Strongest pillar: Solvency · Weakest: Growth

Costco (COST) scores 7.8 out of 10 as of September 11, 2026, computed from its reported financial statements. That reads as high quality. The reading rests on solvency, and growth is what holds it back.

Data provided by Twelve Data. Scores are computed by Lemma Analysis from reported financials.

Why quality is the interesting question for Costco

Margins here are deliberately thin, so any profitability pillar read on margin alone understates the business, because the return comes from turning inventory quickly and from fees that cost almost nothing to serve. Efficiency and predictability are the pillars that actually describe it. A useful case for seeing how much a sector-relative baseline changes the answer.

What each pillar measures

Profitability

7.0 / 10

How much profit the company generates from its capital and sales.

Solvency

9.2 / 10

The company’s ability to service debt and meet its obligations.

Growth

6.3 / 10

How fast revenue, earnings and cash flow are compounding.

Efficiency

8.3 / 10

How well assets and earnings convert into cash and output.

Predictability

8.7 / 10

How stable and consistent results have been over time.

How this score is calculated

Each metric is scored from 0 to 10 against sector-aware benchmarks, where higher is better. Metrics roll up into five pillars, and the pillars combine into the overall score using the weights shown. Sector-sensitive metrics are judged relative to peers in the same sector.

Limitations

This score is a systematic, backward-looking read of reported fundamentals. It does not judge valuation, management quality, competitive moat, or future prospects, and can be distorted by one-off items or unusual accounting. Treat it as a starting point, not a recommendation.

Educational only. Not investment advice.

FAQ

Is Costco a quality business?

On this reading Costco scores 7.8 out of 10, which reads as high quality. Its strongest pillar is solvency, its weakest is growth. Quality is not the same as a good investment: the score says nothing about the price you would pay.

What does the COST quality score measure?

Five pillars, each scored from 0 to 10 against sector-aware benchmarks and then weighted into one overall reading: profitability, solvency, growth, efficiency and predictability. Everything comes from reported financials, and nothing comes from price, sentiment or forecasts.

How current is this score?

It was last recomputed on September 11, 2026. The score moves with the financial statements, i.e. quarterly, so this page changes when a new filing changes the answer rather than on a schedule. Live figures for COST are in the app.

Does a high score mean the stock is cheap?

No. Quality and valuation are separate questions, and a good business at the wrong price is still a bad purchase. Score the business here, then price it with a DCF you control.

Other companies scored

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Score any company, not just these.

Inside Lemma Analysis the same five pillars run on every company we cover, with the metrics behind each one, current fundamentals, a DCF you control and a watchlist that tells you when the price catches up.

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