As of Aug 13, 2026, AWK's PEG ratio of 5.91 reflects its valuation relative to its growth rate. This result reflects a P/E ratio of 23.65 measured against EPS growth of 4.0%. When compared to the trailing 4-quarter average of 5.16, AWK's PEG ratio reflects a 15% increase.
American Water Works Co's ten years historical PEG ratio has a mean of 5.6. Compared to historical data, AWK's 5.91 PEG ratio represents an increase of 6%. AWK hit its maximum PEG ratio of 72.28 during the Mar 2017 quarter over the last ten years. The Sep 2022 quarter marked the lowest reading at 0.25, indicating the most favorable growth-adjusted valuation.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 4.09 | 22.93 | 5.6% |
| 2024 | 2.31 | 23.1 | 10% |
| 2023 | 3.13 | 26.94 | 8.6% |
| 2022 | N/A | 33.8 | -35.2% |
| 2021 | 0.35 | 27.14 | 78% |
| 2020 | 2.86 | 39.25 | 13.7% |
| 2019 | 4.01 | 35.71 | 8.9% |
| 2018 | 0.89 | 28.72 | 32.2% |
| 2017 | N/A | 38.28 | -9.1% |
| 2016 | N/A | 27.51 | -1.1% |
| 2015 | 1.77 | 22.46 | 12.7% |
| 2014 | 1.67 | 22.58 | 13.5% |
| 2013 | 8.13 | 20.32 | 2.5% |
| 2012 | 1.2 | 18.29 | 15.3% |
| 2011 | 1.21 | 18.1 | 15% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Jun 2026 | 5.7 | 22.8 | 4% |
| Mar 2026 | 8.94 | 24.13 | 2.7% |
| Dec 2025 | 4.09 | 22.93 | 5.6% |
| Sep 2025 | 1.9 | 24.46 | 12.9% |
| Jun 2025 | 1.88 | 25.06 | 13.3% |
| Mar 2025 | 2.32 | 26.87 | 11.6% |
| Dec 2024 | 2.31 | 23.1 | 10% |
| Sep 2024 | 6.31 | 29.02 | 4.6% |
| Jun 2024 | 11.46 | 26.36 | 2.3% |
| Mar 2024 | 3.07 | 24.84 | 8.1% |
| Dec 2023 | 3.13 | 26.94 | 8.6% |
| Sep 2023 | N/A | 25.69 | -33.6% |
| Jun 2023 | N/A | 29.8 | -33.1% |
| Mar 2023 | N/A | 32.2 | -35.9% |
| Dec 2022 | N/A | 33.8 | -35.2% |
Measured against past performance, AWK's PEG ratio sits above the 3, 5 and 10-year averages.
With a PEG of 5.91, AWK stands higher than the Utilities sector, the industry and its peers average. Looking at the Utilities sector average of 1.19, American Water Works Co's PEG is 397% higher.
AWK reports a PEG ratio higher than that of peer stocks AWR and MSEX. At 5.91, American Water Works Co's PEG ratio is higher than the peer group average of 2.05.
AWK's Aug 13, 2026 PEG ratio comes in at 5.91.
Historical data over a 3-year period puts AWK's average PEG ratio at 4.65.
Historical data over a 5-year period puts AWK's average PEG ratio at 3.44.
In the last ten years, AWK's peak PEG ratio of 72.28 occurred in the Mar 2017 quarter.
At present, AWK's PEG ratio is 6% higher than its 10-year historical average.
When a company's earnings growth lags its valuation, the PEG ratio tends to be elevated - as seen with AWK's 5.91 reading.
Computing the PEG ratio involves dividing the PE ratio by the company's earnings per share growth (YoY TTM). As of Aug 13, 2026, American Water Works Co has a PE ratio of 23.65. Earnings grew at 4.0% over the TTM period ending Jun 2026. Applying the formula, this gives a PEG ratio of 5.91. PEG RATIO(5.91) = PE RATIO(23.65) / EPS GROWTH(4.0%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.