IOSP
Innospec
PEG ratio, current and historical analysis
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- Basic Materials
- NASDAQ: IOSP
- PEG Ratio
As of Nov 11, 2026, IOSP's PEG ratio of 0 reflects its valuation relative to its growth rate. This result reflects a P/E ratio of 13.78 measured against EPS growth of 11460.0%. When benchmarked against the trailing 4-quarter average of 0.04, IOSP's PEG ratio reflects a 100% decrease.
IOSP PEG ratio history
Innospec's eight years historical PEG ratio averages out to 0.79. Compared to historical data, IOSP's 0.0 PEG ratio represents a decrease of 100%. IOSP hit its maximum PEG ratio of 5.12 during the Dec 2023 quarter over the last eight years. The Sep 2026 quarter marked the lowest reading at 0, indicating the most attractive growth-adjusted valuation.
Innospec PEG ratio by year
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 0.07 | 16.32 | 228% |
| 2024 | N/A | 76.97 | -74.5% |
| 2023 | 5.12 | 22.01 | 4.3% |
| 2022 | 0.45 | 19.15 | 42.1% |
| 2021 | 0.11 | 23.9 | 223.1% |
| 2020 | N/A | 77.55 | -74.5% |
| 2019 | 0.71 | 22.59 | 31.6% |
| 2018 | 0.49 | 17.75 | 35.9% |
| 2017 | N/A | 27.58 | -24.5% |
| 2016 | N/A | 20.21 | -31.7% |
| 2015 | 0.25 | 10.95 | 43.8% |
| 2014 | 2.53 | 12.38 | 4.9% |
| 2013 | 1.02 | 14.05 | 13.8% |
| 2012 | 0.27 | 11.93 | 44.5% |
| 2011 | N/A | 14.04 | -35.5% |
Innospec PEG ratio by quarter (TTM)
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Sep 2026 | 0 | 16.78 | 11,460% |
| Jun 2026 | 0.03 | 16.58 | 537.7% |
| Mar 2026 | 0.05 | 15.87 | 325.9% |
| Dec 2025 | 0.07 | 16.32 | 228% |
| Sep 2025 | N/A | N/A | -100.9% |
| Jun 2025 | N/A | 109.21 | -87.2% |
| Mar 2025 | N/A | 87.73 | -81.8% |
| Dec 2024 | N/A | 76.97 | -74.5% |
| Sep 2024 | 1.52 | 19.6 | 12.9% |
| Jun 2024 | 1.14 | 20.56 | 18.1% |
| Mar 2024 | 1.65 | 21.78 | 13.2% |
| Dec 2023 | 5.12 | 22.01 | 4.3% |
| Sep 2023 | N/A | 20 | -3.6% |
| Jun 2023 | 2.32 | 19.73 | 8.5% |
| Mar 2023 | 0.91 | 19.63 | 21.6% |
IOSP average PEG ratio chart
IOSP's PEG ratio today comes in under the 3, 5 and 10-year averages.
PEG comparison
IOSP EPS growth
IOSP Price vs fair value
IOSP PEG vs peers
Frequently asked questions
What is Innospec's PEG ratio?
IOSP's Nov 11, 2026 PEG ratio comes in at 0.
What is the 3-year average PEG ratio for Innospec (IOSP)?
IOSP shows a 3-year average PEG ratio of 1.2.
What is the 5-year average PEG ratio for Innospec (IOSP)?
IOSP shows a 5-year average PEG ratio of 0.95.
What is the highest PEG ratio for IOSP?
In the last eight years, IOSP's peak PEG ratio of 5.12 occurred in the Dec 2023 quarter.
How does the current PEG ratio for IOSP compare to its historical average?
At present, IOSP's PEG ratio runs 100% lower than its 8-year historical average.
Why is Innospec's PEG ratio so low?
The 0 PEG ratio for IOSP reflects robust earnings growth outpacing the current valuation.
How is IOSP's PEG ratio calculated (Innospec PEG ratio formula)?
Computing the PEG ratio involves dividing the PE ratio by the company's EPS growth rate (YoY TTM). As of Nov 11, 2026, Innospec carries a PE ratio of 13.78. Earnings grew at 11460.0% over the TTM period ending Sep 2026. Applying the formula, this yields a PEG ratio of 0. PEG RATIO(0) = PE RATIO(13.78) / EPS GROWTH(11460.0%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.