As of Jun 22, 2026, FSLR's PE to growth ratio of 0.54 reflects its valuation relative to its growth. This value reflects a P/E ratio of 16.95 measured against EPS growth of 31.4%. When compared to the trailing four-quarter average of 1.5, FSLR's PEG ratio shows a 64% decrease.
First Solar's ten years historical PEG ratio has a mean of 0.52. Compared to historical data, FSLR's 0.54 PEG ratio represents an increase of 3.8%. FSLR reached its maximum PEG ratio of 3.2 during the Jun 2025 quarter over the past ten years. The Sep 2020 quarter had the bottom reading at 0, indicating the most optimal growth-adjusted valuation.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 1.01 | 18.33 | 18.1% |
| 2024 | 0.26 | 14.6 | 55.1% |
| 2023 | 0.01 | 22.14 | 1,997.6% |
| 2022 | N/A | N/A | -109.3% |
| 2021 | 1.14 | 19.76 | 17.3% |
| 2020 | 0.06 | 26.31 | 445% |
| 2019 | N/A | N/A | -179% |
| 2018 | 0.16 | 30.76 | 186.8% |
| 2017 | N/A | N/A | 60.7% |
| 2016 | N/A | N/A | -168.9% |
| 2015 | 0.23 | 11.22 | 48.5% |
| 2014 | 1.91 | 11.26 | 5.9% |
| 2013 | 0.03 | 14.61 | 436.9% |
| 2012 | N/A | N/A | -141.3% |
| 2011 | N/A | N/A | -105.9% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Mar 2026 | 0.4 | 12.71 | 31.4% |
| Dec 2025 | 1.01 | 18.33 | 18.1% |
| Sep 2025 | 1.39 | 16.87 | 12.1% |
| Jun 2025 | 3.2 | 14.1 | 4.4% |
| Mar 2025 | 0.46 | 10.71 | 23.1% |
| Dec 2024 | 0.26 | 14.6 | 55.1% |
| Sep 2024 | 0.13 | 21.39 | 162.6% |
| Jun 2024 | 0.03 | 20.04 | 665.3% |
| Mar 2024 | 0.01 | 17.6 | 2,359% |
| Dec 2023 | 0.01 | 22.14 | 1,997.6% |
| Sep 2023 | 0.09 | 36.39 | 404.5% |
| Jun 2023 | N/A | 129.31 | -16.9% |
| Mar 2023 | N/A | 557.69 | -80.8% |
| Dec 2022 | N/A | N/A | -109.3% |
| Sep 2022 | N/A | 150.31 | -79.4% |
When comparing to historical data, FSLR's PEG ratio sits above its 10-year average, yet it is lower than the 3 and 5-year averages.
With a PEG of 0.54, FSLR stands below the Technology sector and the industry average. Looking at its Technology sector average of 0.75, First Solar's PEG is 28% lower.
FSLR has a PEG ratio below that of peer stock GE.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| FSLR First Solar Inc | 0.52 | $27.4B |
| GE General Electric Co | 1.67 | $373.03B |
| CSIQ Canadian Solar Inc | N/A | $1.02B |
| ASTI Ascent Solar Technologies Inc | N/A | $52.8M |
FSLR's Jun 22, 2026 PEG ratio comes in at 0.54.
Over the last 3 years, FSLR's PEG ratio has averaged at 0.64.
Over the last 5 years, FSLR's PEG ratio has averaged at 0.6.
In the last ten years, FSLR's peak PEG ratio of 3.2 was recorded in the Jun 2025 quarter.
Currently, FSLR's PEG ratio is 3.8% higher than its 10-year historical average.
The PEG ratio comes from taking PE and dividing by the rate at which earnings are growing (YoY TTM). As of Jun 22, 2026, First Solar has a P/E ratio of 16.95. Earnings grew at 31.4% over the TTM period ending Mar 2026. Applying the formula, this gives a price to earnings growth ratio of 0.54. PEG RATIO(0.54) = PE RATIO(16.95) / EPS GROWTH(31.4%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.