ACFN
Acorn Energy
PE ratio, current and historical analysis
- Stocks
- Technology
- NASDAQ: ACFN
- PE Ratio
The current PE ratio for Acorn Energy stock as of Jul 15, 2026 is 22.96. This is calculated based on the TTM EPS of $0.79 and the stock price of $18.14 per share. The PE ratio marks an increase of 73% from its last 4 quarters average of 13.3.
ACFN PE ratio history
The average historical PE ratio of Acorn Energy for the last ten years is 35.12. The current P/E ratio of 22.96 is 35% lower than the historical average. Looking back at the last ten years, ACFN's PE ratio peaked in the Dec 2023 quarter at 121.8, when the price was $6.09 and the EPS was $0.05. The lowest point was in the Mar 2017 quarter, when it reached 3.27 with a price of $5.76 and an EPS of $1.76.
Acorn Energy PE ratio by year
Maximum annual increase: 111.46% in 2025
Maximum annual decrease: -94.2% in 2024
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 14.95 | 111.46% | $15.1 | $1.01 |
| 2024 | 7.07 | -94.2% | $17.89 | $2.53 |
| 2023 | 121.8 | N/A | $6.09 | $0.05 |
| 2022 | N/A | N/A | $5.6 | -$0.25 |
| 2021 | N/A | N/A | $10.08 | $0 |
| 2020 | N/A | N/A | $5.89 | $0 |
| 2019 | N/A | N/A | $5.92 | -$0.32 |
| 2018 | N/A | N/A | $4.32 | -$1.12 |
| 2017 | N/A | N/A | $3.68 | -$0.64 |
| 2016 | 18 | N/A | $2.88 | $0.16 |
| 2015 | N/A | N/A | $1.76 | -$6.4 |
| 2014 | N/A | N/A | $12.32 | -$19 |
| 2013 | N/A | N/A | $65.12 | -$25.1 |
| 2012 | N/A | N/A | $124.96 | -$14.9 |
| 2011 | 2.97 | N/A | $96.64 | $32.5 |
Acorn Energy PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Mar 2026 | 21.52 | 43.95% | $17 | $0.79 |
| Dec 2025 | 14.95 | 40.11% | $15.1 | $1.01 |
| Sep 2025 | 10.67 | 80.54% | $28.6 | $2.68 |
| Jun 2025 | 5.91 | 1.03% | $16.95 | $2.87 |
| Mar 2025 | 5.85 | -17.26% | $15.73 | $2.69 |
| Dec 2024 | 7.07 | -66.43% | $17.89 | $2.53 |
| Sep 2024 | 21.06 | -58.96% | $9.9 | $0.47 |
| Jun 2024 | 51.32 | -12.02% | $9.75 | $0.19 |
| Mar 2024 | 58.33 | -52.11% | $7 | $0.12 |
| Dec 2023 | 121.8 | N/A | $6.09 | $0.05 |
| Sep 2023 | N/A | N/A | $6.25 | -$0.01 |
| Jun 2023 | N/A | N/A | $5.12 | -$0.1 |
| Mar 2023 | N/A | N/A | $5.92 | -$0.3 |
| Dec 2022 | N/A | N/A | $5.6 | -$0.25 |
| Sep 2022 | N/A | N/A | $7.2 | -$0.24 |
ACFN Price vs fair value
ACFN average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
ACFN's current PE ratio is lower than its 3, 5 and 10-year averages.
PE comparison
With a price to earnings (P/E) of 22.96, ACFN ranks lower than the Technology sector, the industry and its peers average. In comparison with the Technology sector average of 36.7, Acorn Energy's price to earnings (P/E) is 37% lower.
ACFN PE vs peers
ACFN's PE ratio stands lower than its peer stocks COHR and KEYS. Acorn Energy's current PE ratio of 22.96 is lower than the average of its peers, which is 53.59.
| Stock name | PE ratio | Market cap |
|---|---|---|
| ACFN Acorn Energy Inc | 25.3 | $50.14M |
| GRMN Garmin Ltd | 27.83 | $48.42B |
| TRMB Trimble Inc | 28.11 | $12.58B |
| TDY Teledyne Technologies Inc | 31.6 | $29.25B |
| ZBRA Zebra Technologies Corp | 31.83 | $12.63B |
| KEYS Keysight Technologies Inc | 50.86 | $53.36B |
| CGNX Cognex Corp | 75.19 | $10.64B |
| COHR Coherent Corp | 121.91 | $53.9B |
Frequently asked questions
What is Acorn Energy's PE ratio?
As of Jul 15, 2026, ACFN stock has a price to earnings ratio of 22.96.
What is the 3-year average PE ratio for Acorn Energy (ACFN)?
As an average over the last 3 years, ACFN stock has a PE ratio of 31.85.
What is the 5-year average PE ratio for Acorn Energy (ACFN)?
As an average over the last 5 years, ACFN stock has a PE ratio of 34.77.
What is the highest PE ratio for ACFN?
Over the last ten years, the quarterly PE ratio reached its highest level at 121.8 in the Dec 2023 quarter.
How does the current PE ratio for ACFN compare to its historical average?
The current PE ratio of ACFN is 35% lower than the 10-year historical average.
How is ACFN's PE ratio calculated (Acorn Energy PE ratio formula)?
To determine the P/E ratio, divide the latest stock price by the TTM earnings per share (EPS). As of today (Jul 15, 2026), Acorn Energy's share price is $18.14. The company's earnings per share for the trailing twelve months (TTM) ending Mar 2026 is $0.79. Therefore, Acorn Energy's PE ratio for today is 22.96. PE RATIO(22.96) = STOCK PRICE($18.14) / TTM EPS($0.79)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.