Based on the most recent data from Oct 22, 2026, GLW's PEG ratio comes in at 0.42. This metric factors in a PE of 56.1 with an earnings growth rate of 132.6%. Relative to the 0.34 average from the previous four quarters, the PEG ratio has grown by 23%.
Looking at the last ten years, GLW's PEG ratio has has been around 0.28 on average. At 0.42, today's PE to growth ratio sits 50% above its historical average. Within the last ten years, the Dec 2022 quarter recorded the highest PEG value at 1.02. 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 |
|---|---|---|---|
| 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% |
| Dec 2022 | 1.02 | 20.47 | 20% |
GLW's PEG ratio today is higher than its 3, 5 and 10-year averages.
Corning's PEG of 0.42 is above its peers average but below the Technology sector and the industry average. Compared to its Technology sector average of 0.59, Corning's PEG is 29% lower.
Compared to its peers, GLW has a PEG ratio under stocks TMO and MMM, while above TEL's and PPG's. At 0.42, Corning's PEG ratio stands higher than the peer group average of 0.15.
Based on Oct 22, 2026 data, GLW carries a PEG ratio of 0.42.
Historical data over a 3-year period places GLW's average PEG ratio at 0.41.
Historical data over a 5-year period places GLW's average PEG ratio at 0.39.
GLW's PEG ratio peaked at 1.02 during the Dec 2022 quarter - the highest in ten years.
GLW currently has a PEG ratio 50% above its 10-year average.
The 0.42 PEG ratio for GLW reflects strong earnings growth outpacing the current valuation.
PEG equals PE divided by EPS growth (YoY TTM). As of Oct 22, 2026, Corning has a P/E ratio of 56.1. Earnings grew at 132.6% over the TTM period ending Jun 2026. Applying the formula, this produces a price to earnings growth ratio of 0.42. PEG RATIO(0.42) = PE RATIO(56.1) / EPS GROWTH(132.6%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.