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Costco is a premier mature compounder generating highly predictable, high-margin membership fee revenue. However, the current market price of $1,011.71 implies an unsustainable >15% 10-year growth rate and a 45x terminal multiple, driving our $533.50 fair value and a Sell rating. Fair value range: low $385, high $683, with mid-point at $534.
Stock analysis

COST Costco Wholesale Corporation fair value $534–$683

COST
By StockMarketAgent.AI team· supervised by
Analyzed: 2026-05-08Next update: 2026-08-08Methodology v2.4Archetype: Mature compounderNASDAQ · Consumer Staples
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Last price
$1011.72
▼ -478.22 (-47.27%)
Fair value
$534
$534–$683
Rating
Sell
confidence 88/100
Upside
-47.3%
upside to fair value
Margin of Safety
$453.47
buy below · 15%
Market Cap
$448.8B
P/E fwd 45.0

§1 Executive summary

  • Fair value of $533.50 implies a -47% downside, triggering a hard Sell rating.
  • Membership model drives 23.2% ROIC and unmatched predictability.
  • Current 45x P/E requires >15% sustained growth, an improbable feat given base rates.
  • A multiple reversion to the historical 25x cap wipes out years of compounding.
Fair value
$534
Margin of safety
-89.6%
Confidence
88/100
Moat
9/10

Educational analysis only — not financial advice. Always do your own due diligence.

$1,011.72Price
FV $533.5
High $683.21

Costco is a premier mature compounder generating highly predictable, high-margin membership fee revenue. However, the current market price of $1,011.71 implies an unsustainable >15% 10-year growth rate and a 45x terminal multipleTerminal multipleThe exit P/E or EV/EBITDA we apply to the final year of an explicit forecast. Anchored to the business's long-run quality and the prevailing risk-free rate., driving our $533.50 fair valueFair valueOur composite estimate of intrinsic per-share value, blended across DCF, exit-multiple, and reverse-DCF methods. Reported as a low/mid/high range to capture model uncertainty. and a Sell rating.

  • High-margin membership fee model
    High-margin membership fee model
  • Massive scale and purchasing power
    Massive scale and purchasing power
  • Cycle upside
    Consumer flight to value consolidates market share among scaled operators and warehouse clubs.

§2 Bear case

A simultaneous consumer recession and macro multiple contraction exposes Costco's lack of valuation safety. Core cash flows survive, but equity value drops 50% as the 45x multiple collapses.

Ways this thesis can break

Multiple Normalization

· High

Forward P/E compresses from >45x to the historical 25x cap, causing massive equity destruction despite stable operations.

FV impact
-47% to midpoint
Trigger
12-24 Months

Growth Deceleration

· Medium

Revenue growth fades below 5% prematurely, triggering a violent re-rating of the terminal multiple by momentum investors.

FV impact
Down to $434 (DCF)
Trigger
24-36 Months

Margin Erosion

· Low

Inflationary pressures and fierce competition force gross margin concessions, dropping operating margins below the 3.7% steady state.

FV impact
Down to $385
Trigger
36-48 Months
Early-warning signals to monitor
MetricCurrentTrigger threshold
Membership renewal rate dropping below 90%.MonitorDeterioration versus the report thesis
Comparable sales lagging CPI inflation.MonitorDeterioration versus the report thesis
Operating margin falling persistently below 3.5%.MonitorDeterioration versus the report thesis
SGA expenses outpacing absolute revenue growth.MonitorDeterioration versus the report thesis
Deceleration in international warehouse openings.MonitorDeterioration versus the report thesis

§3 Financial history

Income statement — last six periods
Line itemT−0T−1T−2T−3CAGR
Period2022-08-312023-08-312024-08-312025-08-31Trend
Revenue$226.95B$242.29B$254.45B$275.24B+6.6%
Gross profit$27.57B$29.70B$32.10B$35.35B+8.6%
Operating income$7.79B$8.11B$9.29B$10.38B+10.0%
Net income$5.84B$6.29B$7.37B$8.10B+11.5%
EPS (diluted)$13.14$14.16$16.56$18.21+11.5%
EBITDA$9.90B$10.72B$12.15B$13.40B+10.6%
R&D
SG&A$19.78B$21.59B$22.81B$24.97B+8.1%

Quality scores

Piotroski F-score
6 / 9
0–9 quality composite
Altman Z-score
10.09
Bankruptcy risk (>3 safe)
Beneish M-score
-2.66
Earnings manipulation risk
OCF / Net income
1.65×
>1 indicates high earnings quality
Accounting quality gate
Pass
Sector-adjusted gate
ROIC
23.2%
Return on invested capital
§3

Numbers analysis

Individual subscribers — §4 onwards11 more sections

Read the full analysis — 11 more sections.

Competitive moat, industry cycle, peer comparison, intrinsic valuation, sensitivity, scenarios, earnings decision tree, position management, investor perspectives, scorecard, and final recommendation.

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FAQ

COST — frequently asked questions

  1. Based on our latest independent analysis, COST looks meaningfully overvalued. The current price is $1012 versus a composite fair-value midpoint of $534 (range $385–$683), which implies roughly 47.3% downside to the midpoint.
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Same archetype: mature-compounder
Same sector: Consumer Staples