Acorn Energy Stock Price History
NASDAQ: ACFNConsumer DiscretionaryMilitary/Government/TechnicalUSD
18.69-0.32 (-1.68%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
ACFN price history at a glance
The price history for Acorn Energy (ACFN) on this page begins on February 10, 1992, when the stock closed at $81.00; it most recently closed at $18.69 on October 5, 2026. The highest price in this record is $260.00, reached on July 5, 1993; the latest close is 92.8% below that peak. Across the 33 complete calendar years in the table, ACFN finished higher in 20 and lower in 13. Its best year was 2009 (+373.1%) and its worst was 2015 (-85.7%).
Over roughly 35 years the share price changed -76.9%, a -4.1% compound annual price return (excluding dividends). In the last 12 months alone, ACFN has lost 30.0%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 1992
- $260.00
- Date of high
- Jul 5, 1993
- Low since 1992
- $1.12
- Date of low
- Jan 18, 2016
- 52-week high
- $27.05
- 52-week low
- $12.42
- Last close
- $18.69
ACFN returns
1 week
-1.74%
1 month
-1.63%
3 months
+8.35%
6 months
+2.58%
Year to date
+23.77%
1 year
-30.03%
3 years
+206.39%
5 years
+85.42%
ACFN price return, excluding dividends.
ACFN annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 18.69 | +22.80% |
| 2025 | 15.22 | -13.03% |
| 2024 | 17.50 | +187.36% |
| 2023 | 6.09 | +8.75% |
| 2022 | 5.60 | -44.44% |
| 2021 | 10.08 | +70.27% |
| 2020 | 5.92 | +19.35% |
| 2019 | 4.96 | +3.33% |
| 2018 | 4.80 | +30.43% |
| 2017 | 3.68 | +27.78% |
| 2016 | 2.88 | +63.64% |
| 2015 | 1.76 | -85.71% |
| 2014 | 12.32 | -82.89% |
| 2013 | 72.00 | -43.47% |
| 2012 | 127.36 | +31.79% |
| 2011 | 96.64 | +55.67% |
| 2010 | 62.08 | -47.43% |
| 2009 | 118.08 | +373.08% |
| 2008 | 24.96 | -72.39% |
| 2007 | 90.40 | +62.82% |
| 2006 | 55.52 | +112.88% |
| 2005 | 26.08 | +63.00% |
| 2004 | 16.00 | -71.10% |
| 2003 | 55.36 | +260.42% |
| 2002 | 15.36 | -81.32% |
| 2001 | 82.24 | +22.75% |
| 2000 | 67.00 | +24.07% |
| 1999 | 54.00 | +28.57% |
| 1998 | 42.00 | -41.67% |
| 1997 | 72.00 | -22.58% |
| 1996 | 93.00 | -16.96% |
| 1995 | 112.00 | +47.37% |
| 1994 | 76.00 | -62.38% |
| 1993 | 202.00 | +126.97% |
| 1992* | 89.00 | +9.88% |
* Partial year: the record begins after the start of 1992; return measured from the first available close.
2026 return is year to date.
ACFN daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 19.10 | 19.10 | 18.53 | 18.69 | -1.68% | |
| 18.59 | 19.43 | 18.36 | 19.01 | +1.66% | |
| 18.52 | 19.10 | 18.15 | 18.70 | +1.08% | |
| 18.75 | 19.46 | 18.50 | 18.50 | -1.18% | |
| 18.80 | 19.08 | 18.44 | 18.72 | -1.58% | |
| 19.40 | 19.79 | 19.02 | 19.02 | -1.71% | |
| 19.23 | 20.07 | 19.21 | 19.35 | -3.25% | |
| 19.79 | 20.43 | 19.01 | 20.00 | +0.30% | |
| 20.92 | 20.92 | 19.68 | 19.94 | -1.77% | |
| 20.30 | 20.68 | 20.01 | 20.30 | -3.29% | |
| 20.63 | 22.02 | 20.63 | 20.99 | +0.91% | |
| 21.00 | 21.01 | 20.22 | 20.80 | +0.29% | |
| 21.04 | 21.16 | 20.23 | 20.74 | -1.61% | |
| 21.19 | 21.49 | 20.61 | 21.08 | +1.35% | |
| 22.12 | 22.30 | 20.65 | 20.80 | -6.35% | |
| 21.53 | 22.30 | 21.26 | 22.21 | +4.22% | |
| 21.19 | 21.49 | 21.03 | 21.31 | +2.55% | |
| 20.45 | 20.97 | 19.28 | 20.78 | +2.36% | |
| 20.60 | 20.87 | 19.92 | 20.30 | -1.50% | |
| 21.37 | 21.61 | 20.27 | 20.61 | -4.67% | |
| 20.92 | 21.76 | 20.38 | 21.62 | +3.10% | |
| 19.30 | 21.01 | 18.79 | 20.97 | +10.37% | |
| 19.23 | 19.50 | 18.94 | 19.00 | -2.56% | |
| 18.80 | 19.59 | 18.49 | 19.50 | +2.47% | |
| 18.95 | 19.36 | 18.10 | 19.03 | +1.44% | |
| 19.70 | 20.31 | 18.60 | 18.76 | -3.94% | |
| 18.80 | 19.80 | 18.80 | 19.53 | +1.88% | |
| 19.16 | 19.60 | 18.48 | 19.17 | +0.16% | |
| 18.96 | 20.09 | 18.96 | 19.14 | -2.99% | |
| 20.58 | 21.20 | 19.70 | 19.73 | -4.46% | |
| 21.49 | 21.49 | 20.65 | 20.65 | -2.13% | |
| 20.33 | 21.21 | 19.71 | 21.10 | +4.30% | |
| 21.15 | 21.38 | 19.57 | 20.23 | -3.67% | |
| 18.48 | 21.00 | 17.68 | 21.00 | +11.64% | |
| 18.75 | 19.27 | 18.45 | 18.81 | -2.29% | |
| 19.26 | 19.31 | 18.45 | 19.25 | +0.36% | |
| 19.50 | 19.98 | 19.18 | 19.18 | -1.29% | |
| 19.44 | 19.50 | 19.21 | 19.43 | -0.26% | |
| 19.50 | 20.25 | 19.19 | 19.48 | +0.41% | |
| 18.38 | 19.48 | 18.28 | 19.40 | +4.98% | |
| 18.06 | 18.79 | 17.80 | 18.48 | +0.60% | |
| 17.97 | 18.40 | 17.56 | 18.37 | +2.23% | |
| 18.07 | 18.49 | 17.49 | 17.97 | -2.23% | |
| 18.80 | 19.15 | 17.87 | 18.38 | -3.26% | |
| 18.20 | 19.52 | 17.71 | 19.00 | +0.26% | |
| 17.75 | 19.42 | 17.01 | 18.95 | -1.04% | |
| 18.22 | 21.13 | 18.00 | 19.15 | +5.22% | |
| 18.72 | 19.46 | 18.02 | 18.20 | -2.47% | |
| 19.50 | 20.00 | 18.21 | 18.66 | -1.01% | |
| 18.79 | 19.13 | 18.75 | 18.85 | -4.12% | |
| 19.66 | 19.66 | 19.66 | 19.66 | +4.85% | |
| 20.00 | 20.05 | 18.75 | 18.75 | -2.34% | |
| 19.87 | 19.87 | 19.01 | 19.20 | -4.95% | |
| 20.52 | 20.52 | 19.37 | 20.20 | -0.98% | |
| 20.68 | 20.72 | 20.40 | 20.40 | -0.49% | |
| 20.88 | 20.88 | 20.50 | 20.50 | -2.57% | |
| 20.36 | 21.16 | 20.36 | 21.04 | +4.16% | |
| 20.10 | 20.46 | 19.36 | 20.20 | +0.80% | |
| 20.39 | 20.39 | 19.79 | 20.04 | -0.69% | |
| 19.77 | 20.30 | 18.92 | 20.18 | +2.07% | |
| 18.14 | 20.00 | 18.14 | 19.77 | +8.99% | |
| 18.18 | 18.39 | 18.04 | 18.14 | +0.50% | |
| 18.29 | 18.29 | 18.05 | 18.05 | -1.37% | |
| 17.13 | 18.45 | 17.02 | 18.30 | +6.09% | |
| 16.93 | 17.25 | 16.38 | 17.25 | +2.01% | |
| 16.65 | 16.91 | 16.65 | 16.91 | +0.71% | |
| 16.61 | 16.91 | 16.51 | 16.79 | -1.06% | |
| 16.97 | 16.97 | 16.43 | 16.97 | +0.12% | |
| 16.76 | 17.00 | 16.63 | 16.95 | +0.36% | |
| 16.55 | 17.05 | 16.41 | 16.89 | -2.09% | |
| 17.02 | 17.25 | 17.00 | 17.25 | +1.29% | |
| 17.01 | 17.03 | 17.00 | 17.03 | -0.99% | |
| 16.88 | 17.20 | 16.88 | 17.20 | -0.23% | |
| 16.24 | 17.25 | 16.06 | 17.24 | +6.22% | |
| 16.50 | 17.00 | 16.23 | 16.23 | -1.76% | |
| 16.50 | 16.99 | 16.50 | 16.52 | +0.67% | |
| 15.87 | 16.50 | 15.87 | 16.41 | +0.49% | |
| 16.40 | 16.40 | 15.85 | 16.33 | +0.18% | |
| 17.15 | 17.15 | 16.11 | 16.30 | -5.01% | |
| 16.50 | 17.32 | 16.50 | 17.16 | +4.00% | |
| 15.56 | 16.94 | 15.30 | 16.50 | +4.63% | |
| 15.87 | 16.00 | 15.57 | 15.77 | -0.76% | |
| 16.00 | 16.20 | 15.77 | 15.89 | -1.85% | |
| 15.83 | 16.19 | 15.82 | 16.19 | +2.79% | |
| 15.47 | 16.06 | 15.47 | 15.75 | -1.99% | |
| 16.39 | 16.40 | 15.51 | 16.07 | -0.99% | |
| 16.34 | 16.49 | 15.50 | 16.23 | +1.82% | |
| 17.08 | 17.08 | 15.53 | 15.94 | -4.55% | |
| 16.80 | 17.14 | 16.70 | 16.70 | +0.48% | |
| 16.96 | 17.13 | 16.62 | 16.62 | -2.52% | |
| 17.25 | 17.50 | 16.95 | 17.05 | -1.67% | |
| 17.42 | 17.50 | 17.05 | 17.34 | +2.00% | |
| 17.00 | 17.47 | 16.81 | 17.00 | +0.77% | |
| 16.97 | 17.51 | 16.21 | 16.87 | -0.12% | |
| 17.00 | 17.19 | 16.57 | 16.89 | -0.59% | |
| 17.19 | 17.53 | 16.92 | 16.99 | -2.69% | |
| 17.31 | 17.78 | 17.11 | 17.46 | +0.87% | |
| 17.34 | 17.54 | 17.14 | 17.31 | +1.05% | |
| 16.90 | 18.77 | 16.50 | 17.13 | +2.57% | |
| 16.76 | 16.95 | 16.40 | 16.70 | +1.15% | |
| 17.13 | 17.13 | 16.35 | 16.51 | -0.54% | |
| 17.26 | 17.26 | 16.53 | 16.60 | -4.10% | |
| 17.27 | 17.85 | 17.11 | 17.31 | -1.25% | |
| 17.01 | 17.76 | 16.64 | 17.53 | +4.53% | |
| 17.20 | 17.20 | 16.50 | 16.77 | -4.77% | |
| 17.77 | 17.77 | 17.41 | 17.61 | +3.16% | |
| 16.80 | 17.26 | 16.80 | 17.07 | +1.85% | |
| 18.92 | 18.92 | 16.72 | 16.76 | -13.39% | |
| 19.60 | 19.60 | 19.03 | 19.35 | +0.52% | |
| 19.42 | 19.76 | 18.51 | 19.25 | -1.18% | |
| 19.35 | 19.98 | 18.36 | 19.48 | +0.46% | |
| 19.30 | 19.79 | 19.30 | 19.39 | -0.77% | |
| 19.00 | 19.54 | 17.62 | 19.54 | +3.39% | |
| 17.96 | 18.90 | 17.75 | 18.90 | +7.08% | |
| 18.00 | 18.69 | 17.45 | 17.65 | -2.00% | |
| 18.01 | 18.01 | 18.01 | 18.01 | -1.80% | |
| 18.04 | 18.34 | 18.04 | 18.34 | +0.77% | |
| 18.57 | 18.74 | 17.97 | 18.20 | -2.47% | |
| 18.49 | 18.88 | 17.51 | 18.66 | +3.90% | |
| 18.01 | 19.00 | 17.84 | 17.96 | -2.23% | |
| 18.43 | 18.85 | 18.01 | 18.37 | +1.10% | |
| 18.43 | 18.49 | 18.17 | 18.17 | -2.36% | |
| 18.85 | 18.85 | 18.50 | 18.61 | -0.75% | |
| 18.86 | 18.86 | 18.75 | 18.75 | -0.74% | |
| 19.53 | 19.73 | 18.74 | 18.89 | -3.33% | |
| 18.22 | 19.54 | 17.81 | 19.54 | +7.24% | |
| 18.69 | 18.79 | 18.22 | 18.22 | -0.11% | |
| 18.02 | 18.87 | 17.48 | 18.24 | -0.16% | |
| 18.51 | 18.51 | 17.50 | 18.27 | +6.78% | |
| 17.60 | 17.80 | 16.09 | 17.11 | -3.00% | |
| 17.50 | 17.64 | 16.79 | 17.64 | +2.56% | |
| 16.07 | 17.45 | 16.00 | 17.20 | +6.30% | |
| 16.87 | 17.34 | 16.18 | 16.18 | -4.82% | |
| 16.85 | 17.80 | 16.44 | 17.00 | +1.13% | |
| 18.56 | 18.65 | 16.52 | 16.81 | -10.06% | |
| 19.17 | 19.55 | 18.56 | 18.69 | -2.50% | |
| 18.75 | 19.49 | 18.75 | 19.17 | +2.51% | |
| 19.23 | 19.23 | 18.56 | 18.70 | +0.75% | |
| 19.17 | 19.25 | 18.00 | 18.56 | -2.26% | |
| 18.44 | 19.17 | 18.02 | 18.99 | +4.80% | |
| 19.17 | 19.23 | 18.00 | 18.12 | -5.08% | |
| 18.32 | 19.34 | 18.30 | 19.09 | +2.36% | |
| 20.01 | 20.75 | 18.26 | 18.65 | -7.86% | |
| 20.02 | 20.38 | 19.76 | 20.24 | +1.35% | |
| 19.67 | 20.53 | 19.60 | 19.97 | +4.88% | |
| 19.40 | 20.55 | 18.96 | 19.04 | -1.35% | |
| 20.12 | 20.12 | 18.90 | 19.30 | -3.16% | |
| 21.35 | 22.14 | 19.93 | 19.93 | -6.48% | |
| 19.38 | 22.00 | 19.08 | 21.31 | +8.17% | |
| 19.60 | 20.00 | 19.11 | 19.70 | +0.77% | |
| 18.32 | 20.62 | 18.32 | 19.55 | +6.71% | |
| 20.00 | 20.86 | 18.16 | 18.32 | -15.65% | |
| 21.67 | 23.05 | 21.36 | 21.72 | -3.47% | |
| 22.76 | 23.07 | 21.75 | 22.50 | -1.14% | |
| 22.00 | 23.75 | 21.67 | 22.76 | +8.02% | |
| 20.88 | 22.17 | 20.70 | 21.07 | +0.72% | |
| 18.85 | 21.10 | 18.80 | 20.92 | +13.45% | |
| 17.29 | 18.44 | 16.89 | 18.44 | +7.02% | |
| 17.99 | 17.99 | 16.74 | 17.23 | -0.29% | |
| 17.66 | 17.87 | 17.03 | 17.28 | -1.31% | |
| 17.99 | 18.03 | 17.43 | 17.51 | +0.46% | |
| 17.50 | 17.50 | 17.04 | 17.43 | +2.23% | |
| 17.50 | 17.50 | 16.82 | 17.05 | -2.57% | |
| 17.84 | 18.18 | 17.40 | 17.50 | -3.79% | |
| 18.41 | 18.41 | 17.82 | 18.19 | +0.94% | |
| 19.35 | 19.35 | 17.82 | 18.02 | -5.85% | |
| 18.19 | 19.36 | 17.91 | 19.14 | +5.28% | |
| 19.16 | 19.82 | 18.18 | 18.18 | -4.42% | |
| 16.89 | 20.19 | 16.89 | 19.02 | +15.83% | |
| 16.51 | 17.63 | 16.20 | 16.42 | +2.63% | |
| 16.04 | 17.26 | 15.81 | 16.00 | -2.91% | |
| 17.20 | 17.20 | 15.50 | 16.48 | -0.12% | |
| 17.79 | 18.06 | 16.12 | 16.50 | -6.88% | |
| 17.60 | 18.26 | 17.60 | 17.72 | 0.00% | |
| 18.11 | 18.23 | 17.69 | 17.72 | -3.06% | |
| 17.66 | 18.28 | 16.94 | 18.28 | +5.54% | |
| 17.65 | 18.30 | 17.22 | 17.32 | -1.14% | |
| 18.47 | 18.69 | 16.61 | 17.52 | -4.52% | |
| 18.85 | 18.86 | 17.50 | 18.35 | -1.71% | |
| 18.61 | 18.82 | 17.65 | 18.67 | -1.11% | |
| 18.12 | 19.13 | 17.89 | 18.88 | +4.14% | |
| 19.20 | 19.20 | 18.01 | 18.13 | -4.68% | |
| 18.59 | 20.08 | 18.21 | 19.02 | 0.00% | |
| 20.13 | 20.13 | 19.01 | 19.02 | -4.66% | |
| 20.24 | 20.24 | 19.62 | 19.95 | -0.94% | |
| 20.69 | 20.69 | 19.61 | 20.14 | -2.75% | |
| 19.60 | 20.71 | 19.60 | 20.71 | -0.10% | |
| 20.50 | 20.92 | 20.14 | 20.73 | -1.14% | |
| 20.95 | 21.50 | 19.99 | 20.97 | +0.77% | |
| 20.75 | 20.95 | 19.50 | 20.81 | +7.05% | |
| 17.50 | 19.46 | 17.40 | 19.44 | +12.11% | |
| 19.10 | 19.20 | 17.18 | 17.34 | -10.02% | |
| 15.79 | 20.25 | 15.40 | 19.27 | +26.61% | |
| 15.20 | 16.20 | 15.00 | 15.22 | +0.79% | |
| 15.30 | 16.01 | 14.85 | 15.10 | +1.14% | |
| 15.15 | 15.86 | 14.87 | 14.93 | -1.91% | |
| 15.19 | 16.09 | 14.69 | 15.22 | +0.13% | |
| 15.95 | 16.01 | 14.82 | 15.20 | -3.61% | |
| 15.60 | 16.87 | 15.24 | 15.77 | +0.13% | |
| 15.71 | 15.75 | 14.88 | 15.75 | +4.93% | |
| 15.50 | 16.05 | 14.86 | 15.01 | -0.07% | |
| 15.43 | 16.14 | 14.45 | 15.02 | +0.81% | |
| 16.12 | 16.35 | 14.62 | 14.90 | -2.99% | |
| 15.19 | 15.96 | 14.02 | 15.36 | +3.57% | |
| 15.15 | 16.20 | 14.82 | 14.83 | -5.12% | |
| 15.91 | 17.00 | 14.80 | 15.63 | -1.01% | |
| 16.40 | 16.91 | 15.11 | 15.79 | -4.65% | |
| 16.75 | 17.53 | 16.16 | 16.56 | -0.72% | |
| 16.35 | 16.95 | 15.63 | 16.68 | -0.42% | |
| 15.91 | 16.75 | 15.91 | 16.75 | +5.28% | |
| 15.50 | 15.91 | 15.25 | 15.91 | +6.07% | |
| 16.68 | 16.68 | 15.00 | 15.00 | -9.20% | |
| 15.93 | 16.89 | 15.89 | 16.52 | +3.64% | |
| 15.59 | 16.54 | 15.00 | 15.94 | +4.80% | |
| 14.91 | 15.50 | 14.40 | 15.21 | +5.85% | |
| 14.50 | 14.88 | 14.10 | 14.37 | -3.36% | |
| 14.47 | 15.00 | 14.38 | 14.87 | +6.75% | |
| 14.35 | 14.68 | 13.93 | 13.93 | -4.98% | |
| 13.22 | 14.66 | 13.22 | 14.66 | +10.47% | |
| 13.00 | 13.68 | 12.42 | 13.27 | +3.59% | |
| 13.61 | 13.97 | 12.80 | 12.81 | -3.61% | |
| 14.79 | 14.79 | 13.27 | 13.29 | -7.77% | |
| 13.40 | 14.50 | 13.40 | 14.41 | +8.75% | |
| 13.67 | 13.78 | 13.25 | 13.25 | -2.14% | |
| 14.14 | 14.30 | 13.30 | 13.54 | -4.38% | |
| 13.80 | 14.64 | 13.69 | 14.16 | +0.71% | |
| 14.50 | 14.87 | 13.82 | 14.06 | -3.10% | |
| 15.90 | 15.90 | 14.50 | 14.51 | -9.31% | |
| 16.13 | 17.13 | 15.92 | 16.00 | +0.82% | |
| 14.09 | 16.61 | 13.65 | 15.87 | +4.89% | |
| 13.83 | 15.99 | 13.50 | 15.13 | +6.55% | |
| 18.00 | 18.61 | 12.42 | 14.20 | -38.26% | |
| 24.16 | 24.16 | 22.32 | 23.00 | +0.22% | |
| 23.50 | 24.18 | 22.75 | 22.95 | -5.09% | |
| 24.96 | 25.30 | 23.88 | 24.18 | -2.22% | |
| 24.57 | 25.09 | 23.54 | 24.73 | +0.53% | |
| 23.54 | 25.43 | 23.54 | 24.60 | -1.76% | |
| 24.98 | 25.23 | 24.50 | 25.04 | -0.28% | |
| 25.39 | 25.50 | 25.02 | 25.11 | +0.40% | |
| 25.39 | 26.01 | 25.01 | 25.01 | -2.15% | |
| 23.05 | 26.47 | 23.00 | 25.56 | +6.72% | |
| 23.77 | 24.89 | 23.45 | 23.95 | +0.59% | |
| 27.05 | 27.05 | 23.68 | 23.81 | -4.42% | |
| 24.04 | 25.62 | 23.70 | 24.91 | +4.18% | |
| 23.88 | 24.63 | 23.24 | 23.91 | -1.03% | |
| 23.71 | 24.51 | 23.29 | 24.16 | -1.27% | |
| 25.01 | 25.37 | 23.60 | 24.47 | -4.41% | |
| 26.00 | 26.28 | 24.36 | 25.60 | -3.40% | |
| 25.04 | 26.50 | 24.02 | 26.50 | +4.41% | |
| 25.00 | 25.82 | 24.14 | 25.38 | -0.12% | |
| 27.50 | 27.50 | 25.01 | 25.41 | -4.87% | |
| 27.22 | 27.22 | 26.65 | 26.71 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the ACFN chart for longer ranges.