Based on the latest data from Nov 11, 2026, ADP's PEG ratio sits at 2.39. This metric combines a PE of 27.06 with an earnings growth rate of 11.3%. Relative to the 2.25 average from the past 4 quarters, the PEG ratio rose by 6%.
Looking at the past ten years, ADP's PEG ratio has settled around 2.75 on average. At 2.39, today's PEG ratio sits 13% lower than its historical average. Within the past ten years, the Dec 2020 quarter saw the highest PEG reading at 19.02. At 0.77, the Mar 2020 quarter represented the lowest PEG ratio in this timeframe.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2026 | 2.15 | 20.41 | 9.5% |
| 2025 | 3.21 | 30.78 | 9.6% |
| 2024 | 2.42 | 26.11 | 10.8% |
| 2023 | 1.55 | 26.64 | 17.2% |
| 2022 | 1.94 | 29.84 | 15.4% |
| 2021 | 5.01 | 32.56 | 6.5% |
| 2020 | 2.99 | 25.98 | 8.7% |
| 2019 | 1.36 | 31.37 | 23.1% |
| 2018 | 4.29 | 31.34 | 7.3% |
| 2017 | 1.17 | 25.68 | 22% |
| 2016 | 4.32 | 28.09 | 6.5% |
| 2015 | N/A | 26.13 | -3.2% |
| 2014 | 2.81 | 25.01 | 8.9% |
| 2013 | 11.27 | 23.66 | 2.1% |
| 2012 | 1.6 | 19.53 | 12.2% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Sep 2026 | 2.02 | 22.8 | 11.3% |
| Jun 2026 | 2.15 | 20.41 | 9.5% |
| Mar 2026 | 1.93 | 18.88 | 9.8% |
| Dec 2025 | 2.9 | 24.64 | 8.5% |
| Sep 2025 | 3.52 | 28.86 | 8.2% |
| Jun 2025 | 3.21 | 30.78 | 9.6% |
| Mar 2025 | 3.54 | 31.18 | 8.8% |
| Dec 2024 | 2.69 | 30.43 | 11.3% |
| Sep 2024 | 2.65 | 29.44 | 11.1% |
| Jun 2024 | 2.42 | 26.11 | 10.8% |
| Mar 2024 | 1.91 | 27.72 | 14.5% |
| Dec 2023 | 1.91 | 26.96 | 14.1% |
| Sep 2023 | 1.72 | 28.44 | 16.5% |
| Jun 2023 | 1.55 | 26.64 | 17.2% |
| Mar 2023 | 1.81 | 28.29 | 15.6% |
Measured against past performance, ADP's PEG ratio is above the 5-year average, yet it comes in under the 3 and 10-year averages.
With a PEG of 2.39, ADP ranks higher than the Industrials sector, the industry and its peers average. In comparison with the Industrials sector average of 0.86, Automatic Data Processing's PEG is 178% higher.
Among its peer stocks ACN and INTU, ADP's PEG ratio runs higher. Automatic Data Processing's PEG ratio of 2.39 is above the peer average of 1.2.
ADP has a PEG ratio of 2.39, per Nov 11, 2026 data.
Historical data over a 3-year period puts ADP's average PEG ratio at 2.57.
Historical data over a 5-year period puts ADP's average PEG ratio at 2.35.
The Dec 2020 quarter marked the ten years high at 19.02 for ADP's PEG ratio.
ADP currently has a PEG ratio 13% below its 10-year average.
Slow earnings growth combined with a rich valuation drives ADP's PEG ratio to 2.39.
Computing the PEG ratio involves dividing the PE ratio by the company's EPS growth rate (YoY TTM). As of Nov 11, 2026, Automatic Data Processing carries a PE ratio of 27.06. Earnings grew at 11.3% over the TTM period ending Sep 2026. Applying the formula, this yields a PEG ratio of 2.39. PEG RATIO(2.39) = PE RATIO(27.06) / EPS GROWTH(11.3%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.