LSE · CLON · stock
Clontarf Energy plc (CLON) stock price history
Every LSE trading session of Clontarf Energy plc from Jun 30, 2005 to Nov 12, 2026: 3,674 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 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.
CLON adjusted close, 2005 to 2026
- £0.4218
- All time high, 2006
- £0.0004
- 52 week high, £0.0001 low
- 3,674
- Daily sessions since 2005
Last updated Nov 12, 2026, the last stored session. Refreshes after each trading day. Full 2005 to 2026 series and minute bars.
CLON key facts
- Clontarf Energy plc (CLON) closed at £0.0001 on Nov 12, 2026 on LSE.
- CLON's all time high close is £0.4218, set on Nov 24, 2006; its all time low close is £0.0001 on Oct 30, 2026.
- CLON's 52 week range is £0.0001 to £0.0004.
- CLON returned -44.0% over the year to Nov 12, 2026 and -94.2% over five years.
- Over ten years CLON returned -98%, -31.0% a year compounded.
- CLON's deepest drawdown was -100.0% from Nov 24, 2006 to Oct 30, 2026.
- DataCedar holds 3,674 daily sessions of CLON history from Jun 30, 2005 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
CLON price chart, 2005 to 2026
CLON returns
Price return from the last close on or before the window start to Nov 12, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -12.5% |
| 3 months | -26.3% |
| 6 months | -33.3% |
| Year to date | -30.0% |
| 1 year | -44.0% |
| 3 years | -76.7% |
| 5 years | -94.2% |
| 10 years | -97.6% |
| Since Jun 30, 2005 | -100.0% |
| Compound annual growth, 21.4 years | -30.1% |
CLON records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- £0.4218 on Nov 24, 2006
- All time low close
- £0.0001 on Oct 30, 2026
- 52 week high
- £0.0004 on Jan 22, 2026
- 52 week low
- £0.0001 on Oct 30, 2026
- Deepest drawdown
- -100.0% from Nov 24, 2006 to Oct 30, 2026, not yet recovered
- Best single session
- +122.5% on Sep 18, 2018
- Worst single session
- -72.0% on Jun 6, 2022
- Volatility, 1 year annualised
- 63.8%
- Sessions closing higher, 1 year
- 8%
- Best calendar year
- 2019, +367%
- Worst calendar year
- 2008, -74%
CLON 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. 2005 starts on Jun 30, 2005; 2026 runs to Nov 12, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | £0.0002 | £0.0004 | £0.0001 | £0.0001 | -30.0% | 3.9B | 198 |
| 2025 | £0.0003 | £0.0005 | £0.0002 | £0.0002 | -39.4% | 8.7B | 206 |
| 2024 | £0.0005 | £0.0015 | £0.0001 | £0.0003 | -37.7% | 30.4B | 222 |
| 2023 | £0.0006 | £0.0021 | £0.0005 | £0.0005 | -18.5% | 26.8B | 202 |
| 2022 | £0.0023 | £0.0080 | £0.0005 | £0.0006 | -72.3% | 11.4B | 173 |
| 2021 | £0.0055 | £0.0056 | £0.0022 | £0.0023 | -56.9% | 1.5B | 172 |
| 2020 | £0.0105 | £0.0123 | £0.0028 | £0.0055 | -49.3% | 820.6M | 169 |
| 2019 | £0.0024 | £0.0158 | £0.0009 | £0.0108 | +367.4% | 1.2B | 152 |
| 2018 | £0.0034 | £0.0067 | £0.0017 | £0.0023 | -35.2% | 1.7B | 161 |
| 2017 | £0.0050 | £0.0090 | £0.0030 | £0.0035 | -23.7% | 1.6B | 183 |
| 2016 | £0.0025 | £0.0108 | £0.0015 | £0.0047 | +86.0% | 1.6B | 177 |
| 2015 | £0.0060 | £0.0100 | £0.0016 | £0.0025 | -61.5% | 103.5M | 141 |
| 2014 | £0.0136 | £0.0157 | £0.0035 | £0.0065 | -51.9% | 124.5M | 133 |
| 2013 | £0.0280 | £0.0425 | £0.0070 | £0.0135 | -55.0% | 83.7M | 146 |
| 2012 | £0.0425 | £0.0499 | £0.0130 | £0.0300 | -27.3% | 116.9M | 161 |
| 2011 | £0.0675 | £0.0800 | £0.0275 | £0.0413 | -38.9% | 54.2M | 170 |
| 2010 | £0.0863 | £0.0900 | £0.0643 | £0.0675 | -27.0% | 3.6M | 218 |
| 2009 | £0.0450 | £0.1074 | £0.0313 | £0.0925 | +105.6% | 3.1M | 206 |
| 2008 | £0.1700 | £0.1791 | £0.0396 | £0.0450 | -73.5% | 2.6M | 217 |
| 2007 | £0.3100 | £0.3132 | £0.1296 | £0.1700 | -45.2% | 3M | 120 |
| 2006 | £0.2300 | £0.4400 | £0.1500 | £0.3100 | +35.8% | 110.7K | 90 |
| 2005 | £0.2850 | £0.3100 | £0.1638 | £0.2283 | n/a | 35.2K | 57 |
CLON monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | £0.0001 | 0.0% |
| October 2026 | £0.0001 | -17.6% |
| September 2026 | £0.0002 | -10.5% |
| August 2026 | £0.0002 | 0.0% |
| July 2026 | £0.0002 | +5.6% |
| June 2026 | £0.0002 | -5.3% |
| May 2026 | £0.0002 | -9.5% |
| April 2026 | £0.0002 | +16.7% |
| March 2026 | £0.0002 | -14.3% |
| February 2026 | £0.0002 | -16.0% |
| January 2026 | £0.0003 | +25.0% |
| December 2025 | £0.0002 | -16.7% |
About the CLON data
Daily bars. 3,674 sessions from Jun 30, 2005 to Nov 12, 2026, one row per LSE 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 Sep 17, 2026 forward, most recent session Nov 3, 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 LSE trading days; minute timestamps are UTC. Prices are in GBP. 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 Jun 30, 2005, 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/lse%3ACLON/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on LSE
Common questions
CLON share price history
