COST currently has a PEG ratio reading of 3.76 as of Jun 22, 2026. This metric factors in a PE of 47.78 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 19% decrease.
A ten years lookback shows an average PEG ratio of 3.82 for Costco Wholesale. COST's current PEG ratio of 3.76 is consistent with its historical average. 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.
| 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% |
| 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% |
When comparing to historical values, COST's PEG ratio is higher than its 5-year average, yet it is below the 3 and 10-year averages.
With a PEG of 3.76, COST stands above the Consumer Defensive sector, the industry and its peers average. Compared to its Consumer Defensive sector average of 1.22, Costco Wholesale's PEG is 208% higher.
Compared to its peers, COST's PEG ratio is under PSMT's but above WMT's and DG's. With a PEG ratio of 3.76, Costco Wholesale stands higher than the 1.46 peer average.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| DLTR Dollar Tree Inc | 0.12 | $22.06B |
| FIVE Five Below Inc | 0.35 | $10.44B |
| DG Dollar General Corp | 0.45 | $25.28B |
| WMT Walmart Inc | 1.97 | $950.27B |
| COST Costco Wholesale Corp | 3.8 | $426.44B |
| PSMT Pricesmart Inc | 4.52 | $5.73B |
| TGT Target Corp | N/A | $61.25B |
According to Jun 22, 2026 data, COST's PEG ratio sits at 3.76.
Over the last 3 years, COST's PEG ratio has settled near 4.29.
Over the last 5 years, COST's PEG ratio has settled near 3.71.
COST's PEG ratio peaked at 15.83 during the May 2020 quarter - the highest in ten years.
COST currently has a PEG ratio 1.6% below its 10-year average.
Slow earnings growth combined with a high valuation pushes COST's PEG ratio to 3.76.
To calculate the PEG ratio, take the company's PE ratio and divide by its EPS growth (YoY TTM). As of Jun 22, 2026, Costco Wholesale has a P/E ratio of 47.78. Earnings grew at 12.7% over the TTM period ending May 2026. Applying the formula, this produces a price to earnings growth ratio of 3.76. PEG RATIO(3.76) = PE RATIO(47.78) / EPS GROWTH(12.7%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.