Nasdaq · EFOI · stock
Energy Focus, Inc./De (EFOI) stock price history
Every Nasdaq trading session of Energy Focus, Inc./De from Aug 18, 1994 to Sep 28, 2026: 8,081 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
EFOI adjusted close, 1994 to 2026
- $4,966
- All time high, 2005
- $9.84
- 52 week high, $1.66 low
- 8,081
- Daily sessions since 1994
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 1994 to 2026 series and minute bars.
EFOI key facts
- Energy Focus, Inc./De (EFOI) closed at $2.75 on Sep 28, 2026 on Nasdaq.
- EFOI's all time high close is $4,966, set on Jul 20, 2005; its all time low close is $1.15 on Sep 27, 2024.
- EFOI's 52 week range is $1.66 to $9.84.
- EFOI returned -3.2% over the year to Sep 28, 2026 and -87.6% over five years.
- Over ten years EFOI returned -98%, -33.3% a year compounded.
- EFOI's deepest drawdown was -100.0% from Jul 20, 2005 to Sep 27, 2024.
- DataCedar holds 8,081 daily sessions of EFOI history from Aug 18, 1994 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
EFOI price chart, 1994 to 2026
EFOI returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -4.8% |
| 3 months | -7.1% |
| 6 months | +44.7% |
| Year to date | +24.4% |
| 1 year | -3.2% |
| 3 years | +34.1% |
| 5 years | -87.6% |
| 10 years | -98.3% |
| Since Aug 18, 1994 | -99.8% |
| Compound annual growth, 32.1 years | -18.1% |
EFOI records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $4,966 on Jul 20, 2005
- All time low close
- $1.15 on Sep 27, 2024
- 52 week high
- $9.84 on Apr 17, 2026
- 52 week low
- $1.66 on Feb 12, 2026
- Deepest drawdown
- -100.0% from Jul 20, 2005 to Sep 27, 2024, not yet recovered
- Best single session
- +210.5% on Apr 17, 2026
- Worst single session
- -55.7% on Apr 2, 2019
- Volatility, 1 year annualised
- 135.1%
- Sessions closing higher, 1 year
- 44%
- Best calendar year
- 2013, +194%
- Worst calendar year
- 2022, -93%
EFOI price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 1994 starts on Aug 18, 1994; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $2.35 | $9.84 | $1.66 | $2.75 | +19.0% | 181.7M | 185 |
| 2025 | $1.20 | $3.56 | $1.19 | $2.31 | +94.1% | 83.9M | 250 |
| 2024 | $1.51 | $2.90 | $1.14 | $1.19 | -21.2% | 17.3M | 252 |
| 2023 | $2.31 | $6.16 | $1.20 | $1.51 | -32.6% | 2.8M | 250 |
| 2022 | $29.33 | $32.41 | $1.96 | $2.24 | -92.5% | 44.6M | 251 |
| 2021 | $28.42 | $67.48 | $13.30 | $29.89 | +6.0% | 59.4M | 252 |
| 2020 | $16.80 | $81.20 | $5.60 | $28.21 | +71.5% | 5.1M | 253 |
| 2019 | $22.05 | $50.75 | $13.30 | $16.45 | -24.2% | 1.6M | 252 |
| 2018 | $85.75 | $120.75 | $17.15 | $21.70 | -74.7% | 148.2K | 251 |
| 2017 | $149.10 | $181.30 | $52.85 | $85.75 | -42.4% | 305K | 251 |
| 2016 | $474.25 | $483.00 | $103.25 | $148.75 | -69.1% | 1.2M | 252 |
| 2015 | $168.00 | $1,022 | $138.25 | $481.25 | +178.9% | 2.1M | 252 |
| 2014 | $175.00 | $374.85 | $136.50 | $172.55 | +4.9% | 360.5K | 252 |
| 2013 | $56.00 | $308.00 | $56.00 | $164.50 | +193.8% | 33.7K | 252 |
| 2012 | $63.00 | $252.00 | $56.00 | $56.00 | -20.0% | 33.5K | 250 |
| 2011 | $332.50 | $472.50 | $59.50 | $70.00 | -78.9% | 92.1K | 252 |
| 2010 | $227.50 | $938.00 | $227.50 | $332.50 | +48.4% | 75.8K | 252 |
| 2009 | $375.47 | $607.28 | $163.25 | $224.00 | -40.3% | 28.3K | 252 |
| 2008 | $2,387 | $2,387 | $326.49 | $375.47 | -84.1% | 32.3K | 253 |
| 2007 | $2,099 | $3,249 | $1,502 | $2,367 | +11.4% | 43.1K | 251 |
| 2006 | $2,824 | $3,046 | $1,770 | $2,125 | -23.9% | 42.4K | 251 |
| 2005 | $3,275 | $5,061 | $2,377 | $2,792 | -14.8% | 32.2K | 252 |
| 2004 | $2,188 | $3,575 | $2,008 | $3,278 | +47.6% | 25K | 252 |
| 2003 | $1,156 | $2,694 | $868.47 | $2,220 | +92.6% | 8.3K | 252 |
| 2002 | $1,045 | $1,632 | $793.38 | $1,153 | +13.9% | 2.9K | 252 |
| 2001 | $2,408 | $2,857 | $963.15 | $1,012 | -58.3% | 5.1K | 248 |
| 2000 | $1,796 | $4,306 | $1,388 | $2,428 | +29.3% | 13.3K | 252 |
| 1999 | $1,224 | $1,939 | $897.85 | $1,877 | +43.8% | 5.8K | 252 |
| 1998 | $1,837 | $2,163 | $1,102 | $1,306 | -28.9% | 6.1K | 252 |
| 1997 | $1,428 | $2,775 | $1,224 | $1,837 | +28.6% | 5K | 253 |
| 1996 | $1,347 | $2,041 | $1,143 | $1,428 | +12.9% | 6.1K | 254 |
| 1995 | $1,877 | $2,122 | $1,061 | $1,265 | -32.6% | 7.1K | 252 |
| 1994 | $1,551 | $2,490 | $1,551 | $1,877 | n/a | 3K | 94 |
EFOI monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $2.75 | -0.7% |
| August 2026 | $2.77 | -9.2% |
| July 2026 | $3.05 | -7.6% |
| June 2026 | $3.30 | -10.1% |
| May 2026 | $3.67 | +2.5% |
| April 2026 | $3.58 | +86.5% |
| March 2026 | $1.92 | +9.7% |
| February 2026 | $1.75 | -20.1% |
| January 2026 | $2.19 | -5.2% |
| December 2025 | $2.31 | 0.0% |
| November 2025 | $2.31 | -15.1% |
| October 2025 | $2.72 | -2.2% |
About the EFOI data
Daily bars. 8,081 sessions from Aug 18, 1994 to Sep 28, 2026, one row per Nasdaq trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Jul 13, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are Nasdaq trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Aug 18, 1994, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/EFOI/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq
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Common questions
EFOI share price history
