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Acorn Energy (ACFN) has the following price history information. Looking back at ACFN historical stock prices for the last five trading days, on December 09, 2025, ACFN opened at $15.91, traded as high as $16.75 and as low as $15.91, and closed at $16.75. Trading volume was a total of 12.80K shares. On December 10, 2025, ACFN opened at $16.35, traded as high as $16.95 and as low as $15.63, and closed at $16.68. Trading volume was a total of 18.30K shares. On December 11, 2025, ACFN opened at $16.75, traded as high as $17.53 and as low as $16.16, and closed at $16.56. Trading volume was a total of 18.70K shares. On December 12, 2025, ACFN opened at $16.40, traded as high as $16.91 and as low as $15.11, and closed at $15.79. Trading volume was a total of 103.20K shares. On December 15, 2025, ACFN opened at $15.91, traded as high as $17.00 and as low as $14.80, and closed at $15.63. Trading volume was a total of 45.10K shares.
ACFN Historical Stock Prices By Date:
Below, we examine the compound annual growth rate — CAGR for short — of an investment into Acorn Energy shares, starting with a $10,000 purchase of ACFN, and working forward through the historical stock price information to today.
|
Growth of $10,000.00 Without Dividends Reinvested |
||
| Start date: | 12/17/2015 | |
| End date: | 12/15/2025 | |
| Start price/share: | $0.11 | |
| End price/share: | $15.63 | |
| Dividends collected/share: | $0.00 | |
| Total return: | 14,109.09% | |
| Average Annual Total Return: | 64.13% | |
| Starting investment: | $10,000.00 | |
| Ending investment: | $1,420,591.63 | |
| Years: | 10.00 | |
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| ACFN Historical Price Range | |||||
| Date | Open | High | Low | Close | Volume |
| 12/09/2025 | $15.91 | $16.75 | $15.91 | $16.75 | 12.80K |
| 12/10/2025 | $16.35 | $16.95 | $15.63 | $16.68 | 18.30K |
| 12/11/2025 | $16.75 | $17.53 | $16.16 | $16.56 | 18.70K |
| 12/12/2025 | $16.40 | $16.91 | $15.11 | $15.79 | 103.20K |
| 12/15/2025 | $15.91 | $17.00 | $14.80 | $15.63 | 45.10K |
|
| About Acorn Energy |
| Acorn Energy, Inc. is a holding company. Co. is focused on providing technology solutions for energy infrastructure asset management. Co. provides products and Internet of Things (IoT) applications and services through its OmniMetrix, LLC (OmniMetrix) subsidiary: Power Generation (PG) and Cathodic Protection (CP). The Power Generation segment services provide wireless remote monitoring and control systems and IoT applications for residential and commercial/industrial power generation equipment. The PG segment includes its AIRGuard product, which remotely monitors and controls industrial air compressors, and its Smart Annunciator product. |
| ACFN Historical Closing Prices | |
| Date | Close |
| 12/09/2025 | $16.75 |
| 12/10/2025 | $16.68 |
| 12/11/2025 | $16.56 |
| 12/12/2025 | $15.79 |
| 12/15/2025 | $15.63 |
| Technology Historical Prices |
| ACFN is categorized under the Technology sector; below are some other companies in the same sector:
ACIA Historical Stock Prices Also explore: ACFN shares outstanding history
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