Based on the most recent data from Nov 11, 2026, GLW's PEG ratio comes in at 0.84. This metric factors in a PE of 48.18 with an earnings growth rate of 57.2%. Relative to the 0.6 average from the previous four quarters, the PEG ratio has grown by 41%.
Looking at the last ten years, GLW's PEG ratio has has been around 0.32 on average. At 0.84, today's PE to growth ratio sits 163% above its historical average. Within the last ten years, the Sep 2026 quarter recorded the highest PEG value at 1.08. At 0.01, the Mar 2017 quarter showed the minimum PEG ratio in this period.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 0.22 | 46.82 | 216.9% |
| 2024 | N/A | 80.54 | -14.5% |
| 2023 | N/A | 44.13 | -55.8% |
| 2022 | 1.02 | 20.47 | 20% |
| 2021 | 0.2 | 28.64 | 140.7% |
| 2020 | N/A | 66.67 | -51.4% |
| 2019 | N/A | 26.23 | -6.7% |
| 2018 | 0.09 | 25.39 | 280.3% |
| 2017 | N/A | N/A | -118.7% |
| 2016 | 0.03 | 6.88 | 246.1% |
| 2015 | N/A | 17.92 | -44% |
| 2014 | 0.36 | 12.6 | 34.8% |
| 2013 | 0.58 | 13.2 | 22.7% |
| 2012 | N/A | 11.47 | -38.9% |
| 2011 | N/A | 7.21 | -21.1% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Sep 2026 | 1.08 | 61.5 | 57.2% |
| Jun 2026 | 0.87 | 115.58 | 132.6% |
| Mar 2026 | 0.21 | 64.44 | 305.8% |
| Dec 2025 | 0.22 | 46.82 | 216.9% |
| Sep 2025 | 0.07 | 51.59 | 736.8% |
| Jun 2025 | 0.67 | 55.36 | 82.7% |
| Mar 2025 | N/A | 88.04 | -28.8% |
| Dec 2024 | N/A | 80.54 | -14.5% |
| Sep 2024 | N/A | 237.63 | -72.5% |
| Jun 2024 | N/A | 74.71 | -30.7% |
| Mar 2024 | N/A | 45.15 | -33% |
| Dec 2023 | N/A | 44.13 | -55.8% |
| Sep 2023 | N/A | 44.16 | -68.5% |
| Jun 2023 | N/A | 46.72 | -68.5% |
| Mar 2023 | N/A | 32.37 | -15.5% |
GLW's PEG ratio today is higher than its 3, 5 and 10-year averages.
Corning's PEG of 0.84 is above the Technology sector, the industry and its peers average. Compared to its Technology sector average of 0.56, Corning's PEG is 50% higher.
Compared to its peers, GLW has a PEG ratio under stocks TMO and MMM, while above TEL's and PPG's. At 0.84, Corning's PEG ratio stands higher than the peer group average of 0.17.
Based on Nov 11, 2026 data, GLW carries a PEG ratio of 0.84.
Historical data over a 3-year period places GLW's average PEG ratio at 0.52.
Historical data over a 5-year period places GLW's average PEG ratio at 0.46.
GLW's PEG ratio peaked at 1.08 during the Sep 2026 quarter - the highest in ten years.
GLW currently has a PEG ratio 163% above its 10-year average.
PEG equals PE divided by EPS growth (YoY TTM). As of Nov 11, 2026, Corning has a P/E ratio of 48.18. Earnings grew at 57.2% over the TTM period ending Sep 2026. Applying the formula, this produces a price to earnings growth ratio of 0.84. PEG RATIO(0.84) = PE RATIO(48.18) / EPS GROWTH(57.2%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.