LSE · COG · stock
Cambridge Cognition Holdings Plc (COG) stock price history
Every LSE trading session of Cambridge Cognition Holdings Plc from Apr 18, 2013 to Nov 11, 2026: 2,321 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.
COG adjusted close, 2013 to 2026
- £1.93
- All time high, 2021
- £0.4500
- 52 week high, £0.2600 low
- 2,321
- Daily sessions since 2013
Last updated Nov 11, 2026, the last stored session. Refreshes after each trading day. Full 2013 to 2026 series and minute bars.
COG key facts
- Cambridge Cognition Holdings Plc (COG) closed at £0.2850 on Nov 11, 2026 on LSE.
- COG's all time high close is £1.93, set on Jul 13, 2021; its all time low close is £0.1900 on Mar 2, 2020.
- COG's 52 week range is £0.2600 to £0.4500.
- COG returned -13.6% over the year to Nov 11, 2026 and -78.9% over five years.
- Over ten years COG returned -59%, -8.6% a year compounded.
- COG's deepest drawdown was -88.9% from Jun 25, 2018 to Mar 2, 2020.
- DataCedar holds 2,321 daily sessions of COG history from Apr 18, 2013 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
COG price chart, 2013 to 2026
COG returns
Price return from the last close on or before the window start to Nov 11, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +1.8% |
| 3 months | -13.6% |
| 6 months | -20.8% |
| Year to date | -3.4% |
| 1 year | -13.6% |
| 3 years | -49.1% |
| 5 years | -78.9% |
| 10 years | -59.3% |
| Since Apr 18, 2013 | -64.4% |
| Compound annual growth, 13.6 years | -7.3% |
COG records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- £1.93 on Jul 13, 2021
- All time low close
- £0.1900 on Mar 2, 2020
- 52 week high
- £0.4500 on Feb 16, 2026
- 52 week low
- £0.2600 on Nov 3, 2026
- Deepest drawdown
- -88.9% from Jun 25, 2018 to Mar 2, 2020, recovered Jul 2, 2021
- Best single session
- +29.6% on Aug 16, 2016
- Worst single session
- -52.8% on Aug 29, 2019
- Volatility, 1 year annualised
- 48.4%
- Sessions closing higher, 1 year
- 14%
- Best calendar year
- 2020, +139%
- Worst calendar year
- 2019, -66%
COG 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. 2013 starts on Apr 18, 2013; 2026 runs to Nov 11, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | £0.2800 | £0.4500 | £0.2600 | £0.2850 | -3.4% | 6.1M | 170 |
| 2025 | £0.3750 | £0.4700 | £0.2390 | £0.2950 | -21.3% | 5.4M | 182 |
| 2024 | £0.5150 | £0.5920 | £0.2640 | £0.3750 | -27.2% | 11.2M | 166 |
| 2023 | £1.14 | £1.30 | £0.4880 | £0.5150 | -56.0% | 8.1M | 159 |
| 2022 | £1.27 | £1.90 | £0.9880 | £1.17 | -7.5% | 6.3M | 173 |
| 2021 | £0.6700 | £1.95 | £0.6600 | £1.27 | +88.8% | 11M | 209 |
| 2020 | £0.2800 | £0.6820 | £0.1650 | £0.6700 | +139.3% | 11.5M | 148 |
| 2019 | £0.8350 | £0.9400 | £0.2400 | £0.2800 | -66.3% | 3.4M | 149 |
| 2018 | £1.60 | £1.75 | £0.6750 | £0.8300 | -47.8% | 4.6M | 165 |
| 2017 | £0.6800 | £1.69 | £0.6800 | £1.59 | +130.4% | 5M | 177 |
| 2016 | £0.8600 | £0.9000 | £0.3000 | £0.6900 | -18.8% | 4.2M | 156 |
| 2015 | £0.7900 | £1.05 | £0.6600 | £0.8500 | +14.9% | 1.8M | 156 |
| 2014 | £0.4850 | £0.9300 | £0.4850 | £0.7400 | +52.6% | 1M | 196 |
| 2013 | £0.7700 | £0.8970 | £0.4300 | £0.4850 | n/a | 538.4K | 115 |
COG monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | £0.2850 | +5.6% |
| October 2026 | £0.2700 | -3.6% |
| September 2026 | £0.2800 | -9.7% |
| August 2026 | £0.3100 | -6.1% |
| July 2026 | £0.3300 | 0.0% |
| June 2026 | £0.3300 | -10.8% |
| May 2026 | £0.3700 | +4.2% |
| April 2026 | £0.3550 | -4.1% |
| March 2026 | £0.3700 | -14.9% |
| February 2026 | £0.4350 | +20.8% |
| January 2026 | £0.3600 | +22.0% |
| December 2025 | £0.2950 | -6.3% |
About the COG data
Daily bars. 2,321 sessions from Apr 18, 2013 to Nov 11, 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 Apr 18, 2013, 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%3ACOG/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on LSE
Common questions
COG share price history
