COST
Costco Wholesale
PEG ratio, current and historical analysis
- Stocks
- Consumer Defensive
- NASDAQ: COST
- PEG Ratio
COST currently has a PEG ratio reading of 3.66 as of Sep 3, 2026. This metric factors in a PE of 46.48 with an earnings growth rate of 12.7%. When compared to the trailing four-quarter average of 4.64, COST's PEG ratio shows a 21% decrease.
COST PEG ratio history
A ten years lookback shows an average PEG ratio of 3.82 for Costco Wholesale. Compared to historical data, COST's 3.66 PEG ratio represents a decrease of 4.2%. Within the last ten years, the May 2020 quarter recorded the highest PEG value at 15.83. At 1.17, the Feb 2018 quarter showed the minimum PEG ratio in this period.
Costco Wholesale PEG ratio by year
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 5.22 | 51.72 | 9.9% |
| 2024 | 3.16 | 53.79 | 17% |
| 2023 | 4.98 | 38.38 | 7.7% |
| 2022 | 2.45 | 40.38 | 16.5% |
| 2021 | 1.6 | 39.85 | 24.9% |
| 2020 | 4.37 | 38.49 | 8.8% |
| 2019 | 2.16 | 35.43 | 16.4% |
| 2018 | 1.92 | 32.61 | 17% |
| 2017 | 1.85 | 25.9 | 14% |
| 2016 | N/A | 30.58 | -0.9% |
| 2015 | 1.68 | 25.87 | 15.4% |
| 2014 | 129.1 | 25.82 | 0.2% |
| 2013 | 1.27 | 23.9 | 18.8% |
| 2012 | 1.41 | 24.84 | 17.6% |
| 2011 | 1.8 | 23.05 | 12.8% |
Costco Wholesale PEG ratio by quarter (TTM)
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| May 2026 | 3.99 | 50.67 | 12.7% |
| Feb 2026 | 4.33 | 52.88 | 12.2% |
| Nov 2025 | 5.01 | 48.05 | 9.6% |
| Aug 2025 | 5.22 | 51.72 | 9.9% |
| May 2025 | 6.13 | 57.05 | 9.3% |
| Feb 2025 | 5.16 | 62.43 | 12.1% |
| Nov 2024 | 3.49 | 56.47 | 16.2% |
| Sep 2024 | 3.16 | 53.79 | 17% |
| May 2024 | 2.48 | 48.68 | 19.6% |
| Feb 2024 | 3.81 | 47.26 | 12.4% |
| Nov 2023 | 3.73 | 40.26 | 10.8% |
| Sep 2023 | 4.98 | 38.38 | 7.7% |
| May 2023 | 6.05 | 36.91 | 6.1% |
| Feb 2023 | 3.82 | 36.68 | 9.6% |
| Nov 2022 | 2.88 | 39.49 | 13.7% |
COST average PEG ratio chart
When comparing to historical values, COST's PEG ratio is below the 3, 5 and 10-year averages.
PEG comparison
With a PEG of 3.66, COST stands above the Consumer Defensive sector, the industry and its peers average. Compared to its Consumer Defensive sector average of 0.93, Costco Wholesale's PEG is 294% higher.
COST EPS growth
COST Price vs fair value
COST PEG vs peers
Compared to its peers, COST's PEG ratio is under WMT's but above TGT's and DG's. With a PEG ratio of 3.66, Costco Wholesale stands higher than the 1.15 peer average.
Frequently asked questions
What is Costco Wholesale's PEG ratio?
According to Sep 3, 2026 data, COST's PEG ratio sits at 3.66.
What is the 3-year average PEG ratio for Costco Wholesale (COST)?
Over the last 3 years, COST's PEG ratio has settled near 4.23.
What is the 5-year average PEG ratio for Costco Wholesale (COST)?
Over the last 5 years, COST's PEG ratio has settled near 3.82.
What is the highest PEG ratio for COST?
COST's PEG ratio peaked at 15.83 during the May 2020 quarter - the highest in ten years.
How does the current PEG ratio for COST compare to its historical average?
COST currently has a PEG ratio 4.2% below its 10-year average.
Why is Costco Wholesale's PEG ratio so high?
Slow earnings growth combined with a high valuation pushes COST's PEG ratio to 3.66.
How is COST's PEG ratio calculated (Costco Wholesale PEG ratio formula)?
To calculate the PEG ratio, take the company's PE ratio and divide by its EPS growth (YoY TTM). As of Sep 3, 2026, Costco Wholesale has a P/E ratio of 46.48. Earnings grew at 12.7% over the TTM period ending May 2026. Applying the formula, this produces a price to earnings growth ratio of 3.66. PEG RATIO(3.66) = PE RATIO(46.48) / EPS GROWTH(12.7%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.