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Costco Wholesale Corporation (COST) Stock Analysis — Fair Value, Risk & Moat Rating

NMS · Consumer Defensive · Discount Stores

$997.84 0.00 (0.0%) As of Apr 20, 2026
Overall Verdict Caution
9.99
Altman Z-ScoreSafe Zone
$649.02
Fair ValueOvervalued -53.8%
3.2
Moat RatingNarrow moat
TL;DR · Audit Summary

Is Costco Wholesale Corporation a safe investment right now?

Costco Wholesale Corporation's Altman Z-Score of 9.99 places it in the safe zone. Our DCF model estimates intrinsic value at $649.02, suggesting the stock is overvalued by 54%. Moat rating: 3.2/5 stars.

Section 01 · Bankruptcy Risk

Could Costco Wholesale Corporation go bankrupt? Altman Z-Score analysis

9.99

Z-Score of 9.99 is above 3.0, indicating the company is financially healthy by this metric.

  • Below 1.8 — Distress Zone (high bankruptcy risk)
  • 1.8 to 3.0 — Gray Zone (elevated uncertainty)
  • Above 3.0 — Safe Zone (financially healthy)

What drives COST's Z-Score?

Altman Z-Score components for COST
ComponentFormulaValueWeightContribution
A · Working Capital / Total AssetsWC / TA-0.01771.2-0.02
B · Retained Earnings / Total AssetsRE / TA0.25541.40.36
C · EBIT / Total AssetsEBIT / TA0.11763.30.39
D · Market Cap / Total LiabilitiesMCap / TL9.58490.65.75
E · Revenue / Total AssetsRev / TA3.51181.03.51

How has COST's financial health changed over time?

3.0 Safe1.8 Distress0.04.28.512.716.92016201720182019202020212022202320242025
COST Z-Score history
YearZ-ScoreZone
201612.6Safe
201713.43Safe
201814.71Safe
201913.82Safe
202013.1Safe
202111.4Safe
202210.07Safe
202310.17Safe
202410.46Safe
20259.99Safe

Source: Calculated from COST's latest 10-K filing on SEC EDGAR.

Section 02 · Fair Value Estimate (Value-Speculation)

What could Costco Wholesale Corporation be worth? (High Uncertainty)

Value-Speculation Classification: This stock has fundamental underpinnings but is priced on growth expectations. Fair value estimated with wider uncertainty bands.
Blended Fair Value · FVL Estimate$649.02
vs
Market Price · today$997.84

Fair value range: $333.79 — $898.80

Margin of Safety -53.8% Growth-adjusted estimate suggests 53.8% premium to fair value. Range $334-$899. This stock is priced for continued high growth.

Valuation Methods Used

FVL multi-factor valuation breakdown
MethodFair ValueWeightDetail
Historical PE × Forward EPS$898.8050%40.0x avg PE (4 years) × $22.47 forward EPS
DCF (Discounted Cash Flow)$442.8730%Two-stage DCF: $6.7B TTM FCF, 13.5% growth, 9.5% WACC
EV/FCF Multiple$333.7920%TTM FCF × 22x multiple + net cash

Assumptions & Data Sources

Valuation model inputs
ParameterValueSource
FCF Growth Rate (Stage 1)13.5%70% analyst consensus + 30% historical
Analyst EPS Growth (This Year)12.4%Consensus (32 analysts)
Analyst EPS Growth (Next Year)10.0%Consensus
Historical 5Y FCF CAGR19.0%SEC EDGAR
Terminal Growth Rate2.5%Long-term GDP proxy
Discount Rate (WACC)9.5%CAPM (Rf=4.3% + 0.98*5.5%)
Net Cash / (Debt)$898MBalance sheet
Base FCF (TTM)$6.7BTrailing 12 months
Shares Outstanding443,652,540Latest

Sensitivity Analysis

DCF intrinsic value at different growth & WACC assumptions
Growth Rate8% WACC10% WACC9.5% WACC13% WACC
0%$242.76$179.40$191.86$129.44
2.5%$281.04$206.10$220.82$147.21
5.0%$324.96$236.61$253.95$167.40
7.5%$384.88$277.56$298.59$193.89

Free Cash Flow History

COST Free Cash Flow history
YearFCFGrowth
2014$1.6B
2019$4.2B+167.9%
2020$2.8B+-33.6%
2021$3.4B+19.7%
2022$6.1B+80.2%
2023$5.4B+-11.3%
2024$3.5B+-34.8%
2025$6.7B+92.7%

Source: FCF data from SEC EDGAR filings. Price via Yahoo Finance.

Section 03 · Competitive Moat

Does Costco Wholesale Corporation have a durable competitive advantage?

★★★☆☆
Narrow moat

Moat rating: 3.2/5.

What makes up COST's moat score?

ROIC Stability

★★★★★

ROIC variability over the past decade. Score: 5/5.

Gross Margin Trend

★★★☆☆

Gross margin trajectory over the past decade. Score: 3/5.

Switching Costs

★☆☆☆☆

Estimated customer lock-in based on margin level. Score: 1/5.

How stable is COST's return on invested capital?

0%-5%3%10%18%26%2016201720182019202020212022202320242025
COST ROIC history
YearROICTrend
201620.0%
201720.8%Stable
201815.5%Declining
201915.9%Stable
202015.8%Stable
202115.5%Stable
202216.3%Stable
202317.1%Stable
202417.2%Stable
202516.7%Stable

Source: ROIC calculated from SEC EDGAR filings.

Section 04 · Dividend Safety

Is Costco Wholesale Corporation's dividend safe?

A Dividend Safety Grade
Yield59.0%
Payout Ratio27.0%
Consecutive Years23
5Y Growth Rate-15.8%

Can Costco Wholesale Corporation afford its dividend?

Payout ratio is 27.0%. FCF covers the dividend 1.1x. 23 consecutive years of payments.

Section 05 · Financial Summary

Costco Wholesale Corporation's key financial metrics

COST financial summary
MetricLatest1Y Ago3Y AgoTrend
Revenue $242.3B $227.0B $166.8B Rising
Net Income $6.3B $5.8B $4.0B Rising
Free Cash Flow $6.7B $3.5B $6.1B Rising
Gross Margin 12.8% N/A N/A
Section 06 · FAQ

Common questions about Costco Wholesale Corporation

Is Costco Wholesale Corporation at risk of going bankrupt?

Costco Wholesale Corporation's Altman Z-Score of 9.99 places it in the safe zone. This metric uses balance sheet ratios to predict bankruptcy probability within 2 years. A score below 1.8 signals distress, while above 3.0 indicates safety.

What is Costco Wholesale Corporation's intrinsic value based on DCF?

Our DCF model estimates Costco Wholesale Corporation's intrinsic value at $649.02 per share. The current margin of safety is -53.8%. This estimate is based on historical free cash flow trends and a risk-adjusted discount rate.

Does Costco Wholesale Corporation have a competitive moat?

Costco Wholesale Corporation receives a moat rating of 3.2 out of 5 stars, based on ROIC stability, gross margin trends, and estimated switching costs. A rating above 3.5 suggests a durable competitive advantage.

Is Costco Wholesale Corporation's dividend safe?

Our dividend safety analysis examines payout ratio, free cash flow coverage, and the company's streak of consecutive dividend payments to determine whether the current payout is sustainable.

COST · Value Investing Quiz

Before you invest in Costco Wholesale Corporation, make sure you truly understand it.

A deep understanding of a company's fundamentals, risk profile, and competitive position dramatically increases your investment accuracy and odds of success.

Pass the quiz to earn the COST Certified Value Investor badge.

FairValueLabs Disclaimer

All valuations, scores, ratings, and classifications on this page are produced by the FairValueLabs internal valuation system. They do not represent actual market value, guaranteed outcomes, or professional investment advice. These are analytical estimates for educational and research purposes only.

This is not financial advice. All data is sourced from SEC EDGAR public filings. Always consult a qualified financial advisor before making investment decisions.

Last updated: Apr 20, 2026. Data sources: SEC EDGAR (financial statements), Yahoo Finance (market data, analyst consensus). Data may not reflect the most recent quarter.

COST analysis methodology: How we calculate fair value, Z-Scores, and moat ratings