International Bancshares is trading with a PE to growth ratio of 35.9, based on Aug 21, 2026 data. Dividing the 10.77 PE ratio by the 0.3% earnings growth rate yields this valuation metric. Relative to the 14.37 average from the past four quarters, the PEG ratio has soared by 150%.
Historically, International Bancshares has a PEG ratio averaging 5.02 across the past ten years. At 35.9, today's PEG ratio sits 615% more than its historical average. The ten years high occurred in the Mar 2025 quarter at 48, reflecting maximum valuation relative to growth. The minimum was hit in the Jun 2023 quarter at 0.09, indicating optimal value relative to growth during that period.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 12.53 | 10.02 | 0.8% |
| 2024 | N/A | 9.6 | -0.8% |
| 2023 | 0.21 | 8.19 | 38.4% |
| 2022 | 0.49 | 9.55 | 19.5% |
| 2021 | 0.2 | 10.57 | 52.5% |
| 2020 | N/A | 14.24 | -16% |
| 2019 | N/A | 13.76 | -4.3% |
| 2018 | 0.28 | 10.52 | 37.4% |
| 2017 | 0.97 | 16.68 | 17.2% |
| 2016 | N/A | 20.1 | -1.5% |
| 2015 | N/A | 12.48 | -10% |
| 2014 | 0.53 | 11.59 | 21.8% |
| 2013 | 0.4 | 14.02 | 35.3% |
| 2012 | N/A | 13.01 | -17.8% |
| 2011 | N/A | 10.85 | -1.7% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Jun 2026 | 38.13 | 11.44 | 0.3% |
| Mar 2026 | 4.78 | 10.03 | 2.1% |
| Dec 2025 | 12.53 | 10.02 | 0.8% |
| Sep 2025 | 2.03 | 10.17 | 5% |
| Jun 2025 | 5.58 | 10.05 | 1.8% |
| Mar 2025 | 48 | 9.6 | 0.2% |
| Dec 2024 | N/A | 9.6 | -0.8% |
| Sep 2024 | N/A | 9.28 | -2.6% |
| Jun 2024 | 2.67 | 8.8 | 3.3% |
| Mar 2024 | 0.49 | 8.56 | 17.4% |
| Dec 2023 | 0.21 | 8.19 | 38.4% |
| Sep 2023 | 0.1 | 6.56 | 65.7% |
| Jun 2023 | 0.09 | 7.03 | 79.2% |
| Mar 2023 | 0.2 | 7.66 | 38.4% |
| Dec 2022 | 0.49 | 9.55 | 19.5% |
Measured against past performance, IBOC's PEG ratio sits above its 3, 5 and 10-year averages.
With a PEG of 35.9, IBOC stands above the Financial Services sector and the industry average.
IBOC has a PEG ratio above that of peer stocks CFR and PB.
Based on Aug 21, 2026 data, IBOC has a PEG ratio of 35.9.
IBOC's 3-year PEG ratio average is 11.45.
IBOC's 5-year PEG ratio average is 7.05.
IBOC's PEG ratio peaked at 48 during the Mar 2025 quarter - the highest in ten years.
Compared to the 10-year average, IBOC's PEG ratio is 615% higher.
Slow earnings growth combined with a high valuation pushes IBOC's PEG ratio to 35.9.
To calculate the PEG ratio, take the company's PE ratio and divide by its earnings per share growth (YoY TTM). As of Aug 21, 2026, International Bancshares has a P/E ratio of 10.77. Earnings grew at 0.3% over the TTM period ending Jun 2026. Applying the formula, this gives a price to earnings growth ratio of 35.9. PEG RATIO(35.9) = PE RATIO(10.77) / EPS GROWTH(0.3%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.