LSE · SEI · stock
Sintana Energy Inc. (SEI) stock price history
Every LSE trading session of Sintana Energy Inc. from Dec 23, 2025 to Nov 13, 2026: 215 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.
SEI adjusted close, 2025 to 2026
- £0.3200
- All time high, 2026
- £0.3206
- 52 week high, £0.1700 low
- 215
- Daily sessions since 2025
Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 2025 to 2026 series and minute bars.
SEI key facts
- Sintana Energy Inc. (SEI) closed at £0.1800 on Nov 13, 2026 on LSE.
- SEI's all time high close is £0.3200, set on Apr 13, 2026; its all time low close is £0.1800 on Jun 30, 2026.
- SEI's 52 week range is £0.1700 to £0.3206.
- SEI's deepest drawdown was -43.8% from Apr 13, 2026 to Jun 30, 2026.
- DataCedar holds 215 daily sessions of SEI history from Dec 23, 2025 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
SEI price chart, 2025 to 2026
SEI returns
Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -11.8% |
| 3 months | -15.1% |
| 6 months | -33.3% |
| Year to date | -28.0% |
| 1 year | n/a |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since Dec 23, 2025 | -30.8% |
SEI records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- £0.3200 on Apr 13, 2026
- All time low close
- £0.1800 on Jun 30, 2026
- 52 week high
- £0.3206 on Apr 10, 2026
- 52 week low
- £0.1700 on Nov 6, 2026
- Deepest drawdown
- -43.8% from Apr 13, 2026 to Jun 30, 2026, not yet recovered
- Best single session
- +13.9% on Feb 19, 2026
- Worst single session
- -9.4% on May 18, 2026
- Volatility, 1 year annualised
- 44.6%
- Sessions closing higher, 1 year
- 27%
SEI 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. 2025 starts on Dec 23, 2025; 2026 runs to Nov 13, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | £0.2500 | £0.3206 | £0.1700 | £0.1800 | -28.0% | 57.6M | 211 |
| 2025 | £0.2550 | £0.2690 | £0.2300 | £0.2500 | n/a | 656.5K | 4 |
SEI monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | £0.1800 | -10.0% |
| October 2026 | £0.2000 | +2.6% |
| September 2026 | £0.1950 | -4.9% |
| August 2026 | £0.2050 | 0.0% |
| July 2026 | £0.2050 | +13.9% |
| June 2026 | £0.1800 | -20.0% |
| May 2026 | £0.2250 | -19.6% |
| April 2026 | £0.2800 | -5.1% |
| March 2026 | £0.2950 | +11.3% |
| February 2026 | £0.2650 | +9.5% |
| January 2026 | £0.2420 | -3.2% |
| December 2025 | £0.2500 | n/a |
About the SEI data
Daily bars. 215 sessions from Dec 23, 2025 to Nov 13, 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 11, 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 Dec 23, 2025, 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%3ASEI/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on LSE
Common questions
SEI share price history
