Acorn Energy, Inc. (ACFN) Key Metrics
ACFN valuation today
Trailing 12 months · as of October 18, 2026- Market cap
- $46.5M
- Enterprise value
- $49.0M
- P/E (TTM)
- 30.0 10-yr median 35.4
- Forward P/E
- 98.0
- PEG ratio
- 3.26
- Price / sales
- 4.9 10-yr median 2.2
- Price / book
- 6.0 10-yr median 6.4
- EV / EBITDA
- 60.2 10-yr median 46.4
- Dividend yield
- —
- Beta
- 0.31
ACFN key metrics, 2016–2025
Fiscal year ended December 31, 2025 · U.S. dollarsACFN valuation Price multiples at each fiscal year-end price.
ACFN returns How much profit the business earns on the capital it uses.
ACFN per-share figures Results divided by the shares outstanding at year-end.
ACFN financial health Debt, liquidity and how easily interest is covered.
ACFN efficiency & capital use Working capital cycle and where the cash goes.
ACFN valuation history
ACFN returns on capital
Net income (ROE, ROA) or after-tax operating income (ROIC) divided by the average of the opening and closing balance.
ACFN debt vs cash
Debt includes short- and long-term borrowings and, where reported, lease liabilities.
ACFN cash returned to shareholders
ACFN price vs earnings per share
ACFN key metrics
2016–2025| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Valuation | ||||||||||
| Market capitalization | $38.3M | $44.9M | $15.2M | $13.9M | $25.0M | $14.7M | $13.1M | $7.7M | $6.8M | $5.1M |
| Enterprise value | $34.9M | $42.7M | $14.0M | $12.8M | $23.7M | $13.3M | $12.6M | $7.0M | $794,514 | −$370,737 |
| P/E ratio | 15.3 | 7.1 | 128.1 | — | — | 213.0 | — | — | — | 35.4 |
| Price / sales | 3.3 | 4.1 | 1.9 | 2.0 | 3.7 | 2.5 | 2.4 | 1.5 | 1.6 | 0.6 |
| Price / book | 4.6 | 8.1 | — | — | — | — | — | — | 14.4 | 3.9 |
| Price / free cash flow | 18.6 | 52.9 | — | — | — | 39.6 | — | — | — | — |
| Price / operating cash flow | 18.3 | 49.7 | 211.7 | 448.2 | 189.4 | 31.7 | — | — | — | — |
| EV / sales | 3.0 | 3.9 | 1.7 | 1.8 | 3.5 | 2.2 | 2.3 | 1.4 | 0.2 | -0.0 |
| EV / EBITDA | 16.6 | 20.0 | 46.4 | — | 128.9 | 53.1 | — | — | — | — |
| EV / free cash flow | 17.0 | 50.3 | — | — | — | 35.9 | — | — | — | — |
| Earnings yield | 6.5% | 14.0% | 0.8% | −4.6% | −0.1% | 0.5% | −4.3% | −26.1% | −17.3% | 2.8% |
| Free cash flow yield | 5.4% | 1.9% | −0.0% | −1.9% | −0.8% | 2.5% | −10.6% | −31.6% | −24.8% | −88.7% |
| Shareholder yield (dividends + buybacks) | 0.0% | 0.0% | — | — | — | 0.0% | 0.0% | — | — | 0.0% |
| Share price at fiscal year-end | $15.10 | $17.89 | $6.09 | $5.60 | $10.08 | $5.92 | $5.92 | $4.16 | $3.68 | $2.88 |
| Per share | ||||||||||
| Revenue per share | $4.52 | $4.37 | $3.22 | $2.82 | $2.73 | $2.39 | $2.47 | $2.76 | $2.37 | $4.86 |
| Earnings per share | $0.99 | $2.51 | $0.05 | −$0.26 | −$0.01 | $0.03 | −$0.25 | −$1.08 | −$0.64 | $0.08 |
| Operating cash flow per share | $0.82 | $0.36 | $0.03 | $0.01 | $0.05 | $0.19 | −$0.55 | −$1.31 | −$0.91 | −$2.53 |
| Free cash flow per share | $0.81 | $0.34 | −$0.00 | −$0.11 | −$0.08 | $0.15 | −$0.62 | −$1.31 | −$0.91 | −$2.55 |
| Cash per share | $1.75 | $0.93 | $0.58 | $0.58 | $0.69 | $0.83 | $0.56 | $0.53 | $3.42 | $3.30 |
| Book value per share | $3.25 | $2.21 | −$0.33 | −$0.41 | −$0.19 | −$0.21 | −$0.29 | −$0.72 | $0.26 | $0.75 |
| Tangible book value per share | $3.24 | $2.20 | −$0.34 | −$0.42 | −$0.19 | −$0.22 | −$0.29 | −$0.72 | $0.26 | $0.75 |
| Capex per share | $0.01 | $0.02 | $0.03 | $0.12 | $0.13 | $0.04 | $0.07 | $0.00 | $0.00 | $0.02 |
| Debt per share | $0.41 | $0.04 | $0.09 | $0.14 | $0.18 | $0.28 | $0.33 | $0.15 | $0.17 | $0.21 |
| Shares outstanding | 2.5M | 2.5M | 2.5M | 2.5M | 2.5M | 2.5M | 2.2M | 1.8M | 1.8M | 1.8M |
| Change in shares outstanding | +1.0% | +0.4% | +0.9% | +0.0% | −0.1% | +11.9% | +20.2% | +0.4% | +3.1% | +6.4% |
| Returns & profitability | ||||||||||
| Return on equity (ROE) | 36.4% | 267.7% | — | — | — | — | — | — | −129.7% | 17.1% |
| Return on invested capital (ROIC) | 48.8% | 310.9% | — | — | — | — | — | — | — | — |
| Return on assets (ROA) | 21.0% | 78.5% | 2.1% | −10.5% | −0.4% | 1.4% | −12.6% | −30.5% | −12.7% | 0.9% |
| Return on tangible assets | 18.9% | 59.5% | 2.2% | −10.6% | −0.3% | 1.3% | −11.2% | −51.1% | −12.7% | 1.6% |
| Free cash flow margin | 17.9% | 7.7% | −0.0% | −3.7% | −2.8% | 6.3% | −25.2% | −47.6% | −38.5% | −52.6% |
| Income quality (OCF / net income) | 0.83 | 0.14 | 0.61 | — | — | 6.72 | — | — | — | −31.17 |
| Financial health | ||||||||||
| Total debt | $1.0M | $98,000 | $221,000 | $336,000 | $443,000 | $691,000 | $731,000 | $283,000 | $313,000 | $376,000 |
| Cash & short-term investments | $4.5M | $2.3M | $1.4M | $1.4M | $1.7M | $2.1M | $1.2M | $973,000 | $6.3M | $5.9M |
| Net debt | −$3.4M | −$2.2M | −$1.2M | −$1.1M | −$1.3M | −$1.4M | −$516,000 | −$690,000 | −$6.0M | −$5.5M |
| Debt / equity | 0.13 | 0.02 | — | — | — | — | — | — | 0.66 | 0.28 |
| Debt / assets | 0.08 | 0.01 | 0.04 | 0.06 | 0.07 | 0.13 | 0.15 | 0.07 | 0.03 | 0.04 |
| Net debt / EBITDA | −1.62 | −1.05 | −4.07 | — | −6.95 | −5.47 | — | — | — | −8.24 |
| Current ratio | 1.83 | 1.26 | 0.88 | 0.68 | 0.99 | 0.98 | 0.95 | 0.83 | 1.16 | 1.68 |
| Quick ratio | 1.50 | 1.16 | 0.67 | 0.51 | 0.84 | 0.91 | 0.87 | 0.76 | 1.13 | 1.64 |
| Interest coverage | — | — | 24.7 | -289.0 | -1.6 | -8.9 | -29.1 | -12.2 | -8.2 | -5.1 |
| Working capital | $3.2M | $1.1M | −$571,000 | −$1.4M | −$60,000 | −$95,000 | −$164,000 | −$651,000 | $1.2M | $3.5M |
| Invested capital | $4.8M | $3.3M | −$2.1M | −$2.1M | −$1.7M | −$1.9M | −$1.2M | −$2.0M | −$5.5M | −$4.2M |
| Tangible asset value | $8.3M | $5.6M | −$847,000 | −$1.0M | −$472,000 | −$530,000 | −$648,000 | −$1.2M | $752,000 | $1.9M |
| Net current asset value | $1.9M | $379,000 | −$2.2M | −$3.9M | −$2.3M | −$1.9M | −$2.2M | −$2.0M | $233,000 | $1.4M |
| Graham number | $8.50 | $11.15 | — | — | — | — | — | — | — | $1.17 |
| Graham net-net per share | $0.32 | −$0.41 | −$1.58 | −$1.90 | −$1.54 | −$1.24 | −$1.58 | −$1.92 | −$0.68 | −$0.35 |
| Capital allocation | ||||||||||
| Share buybacks (net) | $16,000 | $0 | — | — | — | $0 | $0 | — | — | $0 |
| Dividends + buybacks / free cash flow | 0.8% | 0.0% | — | — | — | 0.0% | — | — | — | — |
| Capex / revenue | 0.3% | 0.5% | 0.9% | 4.2% | 4.8% | 1.6% | 3.0% | 0.0% | 0.0% | 0.4% |
| Capex / operating cash flow | 1.6% | 6.2% | 105.6% | 941.9% | 245.5% | 20.0% | — | — | — | — |
| Capex / depreciation | 0.29 | 0.46 | 0.47 | 1.19 | 1.69 | 0.66 | 1.96 | 0.00 | 0.00 | 0.23 |
| Stock-based compensation / revenue | 1.1% | 0.5% | 0.7% | 1.1% | 1.1% | 0.6% | 0.4% | — | — | — |
| R&D / revenue | 9.5% | 9.2% | 10.9% | 12.1% | 10.9% | 10.5% | 10.2% | 10.7% | 11.9% | 10.7% |
| SG&A / revenue | 49.9% | 46.0% | 62.7% | 68.6% | 61.5% | 64.5% | 67.9% | 77.8% | 88.3% | 65.3% |
| Efficiency | ||||||||||
| Days sales outstanding | 46.5 | 41.2 | 25.7 | 38.4 | 40.0 | 48.4 | 54.1 | 63.4 | 88.4 | 237.0 |
| Days of inventory on hand | 115.8 | 85.4 | 155.5 | 133.0 | 82.9 | 53.7 | 53.0 | 45.5 | 41.3 | 42.8 |
| Days payables outstanding | 41.3 | 35.7 | 47.2 | 66.2 | 66.7 | 43.4 | 42.6 | 68.3 | 114.8 | 108.6 |
| Cash conversion cycle (days) | 121.0 | 90.9 | 134.0 | 105.2 | 56.2 | 58.7 | 64.6 | 40.7 | 15.0 | 171.2 |
| Receivables turnover | 7.84 | 8.86 | 14.23 | 9.50 | 9.13 | 7.54 | 6.75 | 5.75 | 4.13 | 1.54 |
| Payables turnover | 8.83 | 10.21 | 7.74 | 5.51 | 5.47 | 8.41 | 8.58 | 5.35 | 3.18 | 3.36 |
| Inventory turnover | 3.15 | 4.27 | 2.35 | 2.74 | 4.40 | 6.80 | 6.88 | 8.02 | 8.83 | 8.53 |
| Asset turnover | 0.96 | 1.37 | 1.41 | 1.16 | 1.21 | 1.16 | 1.23 | 0.77 | 0.47 | 0.52 |
| Average receivables | $1.5M | $1.2M | $566,500 | $736,500 | $742,000 | $785,000 | $813,500 | $884,000 | $1.1M | $5.6M |
| Average payables | $301,500 | $292,500 | $265,500 | $350,000 | $343,000 | $213,000 | $221,500 | $367,500 | $598,500 | $1.5M |
| Average inventory | $845,000 | $699,000 | $875,500 | $703,000 | $426,500 | $263,500 | $276,000 | $245,000 | $215,500 | $602,000 |
| Intangibles / total assets | 0.2% | 0.2% | 0.4% | 0.3% | 0.2% | 0.2% | 0.1% | 0.0% | 0.0% | 0.0% |
Computed from ACFN's annual financial statements (latest annual report filed March 5, 2026) and the closing share price on each fiscal year-end, adjusted for stock splits. Figures in U.S. dollars; data from EODHD. Averages use the opening and closing balance of each year.
ACFN valuation and financial ratios
At the end of fiscal 2025 (December 31, 2025), Acorn Energy traded at 15.3 times earnings, against a 10-year median of 35.4. Based on the latest twelve months, the trailing P/E is 30.0 and the forward P/E is 98.0. Acorn Energy earned a return on equity of 36.4% and a return on invested capital of 48.8% in fiscal 2025. It ended the year with $1.0 million of debt and $4.5 million in cash and short-term investments, a net cash position of $3.4 million. It returned $0.0 million to shareholders: $0 in dividends and $0.0 million in share buybacks, 1% of free cash flow. The share count rose 42.3% from 1.8M to 2.5M over 9 years.
See the ACFN income statement, the ACFN chart for price history, or the ACFN stock overview for the latest quote and news.
ACFN key metrics FAQ
What is Acorn Energy's P/E ratio?
Acorn Energy's trailing P/E ratio is 30.0 based on the last twelve months of earnings (as of October 18, 2026), and its forward P/E is 98.0. At the end of fiscal 2025 it was 15.3, compared with a 10-year median of 35.4.
What is Acorn Energy's EV/EBITDA?
Acorn Energy's enterprise value was 16.6 times EBITDA at the end of fiscal 2025 (enterprise value $34.9 million, EBITDA $2.1 million); the current EV/EBITDA is 60.2.
What is Acorn Energy's return on equity?
Acorn Energy's return on equity (ROE) was 36.4% in fiscal 2025: net income of $2.5 million on average shareholders' equity of $6.9 million.
What is Acorn Energy's ROIC?
Acorn Energy's return on invested capital was 48.8% in fiscal 2025, using after-tax operating income divided by average debt plus equity minus cash.
How much debt does Acorn Energy have?
Acorn Energy had total debt of $1.0 million at the end of fiscal 2025, a debt-to-equity ratio of 0.13 and more cash than debt.
Does Acorn Energy buy back its shares?
Yes. Acorn Energy spent $0.0 million on net share repurchases in fiscal 2025 Shares outstanding changed +1.0% over the year, to 2.5M..
What is Acorn Energy's free cash flow yield?
Acorn Energy generated $2.1 million of free cash flow in fiscal 2025, a free cash flow yield of 5.4% on its market value at year-end ($38.3 million).
What is Acorn Energy's current ratio?
Acorn Energy's current ratio was 1.83 at the end of fiscal 2025: current assets were 1.83 times current liabilities.