LSE · MDH · stock
Mendell Helium plc (MDH) stock price history
Every LSE trading session of Mendell Helium plc from Jun 17, 2026 to Nov 12, 2026: 75 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.
MDH adjusted close, 2026 to 2026
- £0.0550
- All time high, 2026
- £0.0600
- 52 week high, £0.0270 low
- 75
- Daily sessions since 2026
Last updated Nov 12, 2026, the last stored session. Refreshes after each trading day. Full 2026 to 2026 series and minute bars.
MDH key facts
- Mendell Helium plc (MDH) closed at £0.0310 on Nov 12, 2026 on LSE.
- MDH's all time high close is £0.0550, set on Aug 18, 2026; its all time low close is £0.0295 on Nov 4, 2026.
- MDH's 52 week range is £0.0270 to £0.0600.
- MDH's deepest drawdown was -46.4% from Aug 18, 2026 to Nov 4, 2026.
- DataCedar holds 75 daily sessions of MDH history from Jun 17, 2026 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
MDH price chart, 2026 to 2026
MDH returns
Price return from the last close on or before the window start to Nov 12, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -20.5% |
| 3 months | -39.2% |
| 6 months | n/a |
| Year to date | n/a |
| 1 year | n/a |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since Jun 17, 2026 | -36.1% |
MDH records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- £0.0550 on Aug 18, 2026
- All time low close
- £0.0295 on Nov 4, 2026
- 52 week high
- £0.0600 on Sep 14, 2026
- 52 week low
- £0.0270 on Nov 10, 2026
- Deepest drawdown
- -46.4% from Aug 18, 2026 to Nov 4, 2026, not yet recovered
- Best single session
- +15.8% on Aug 4, 2026
- Worst single session
- -14.0% on Sep 25, 2026
- Volatility, 1 year annualised
- 88.1%
- Sessions closing higher, 1 year
- 38%
MDH 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. 2026 starts on Jun 17, 2026; 2026 runs to Nov 12, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | £0.0485 | £0.0600 | £0.0270 | £0.0310 | n/a | 157.8M | 75 |
MDH monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | £0.0310 | -10.1% |
| October 2026 | £0.0345 | -9.2% |
| September 2026 | £0.0380 | -23.2% |
| August 2026 | £0.0495 | +30.3% |
| July 2026 | £0.0380 | -10.8% |
| June 2026 | £0.0426 | n/a |
About the MDH data
Daily bars. 75 sessions from Jun 17, 2026 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 6, 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 17, 2026, 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%3AMDH/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on LSE
Common questions
MDH share price history
