LSE · GSK · stock
GSK plc (GSK) stock price history
Every LSE trading session of GSK plc from Jul 1, 1988 to Sep 29, 2026: 9,807 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.
GSK adjusted close, 1988 to 2026
- £22.70
- All time high, 1999
- £22.81
- 52 week high, £15.90 low
- 9,807
- Daily sessions since 1988
Last updated Sep 29, 2026, the last stored session. Refreshes after each trading day. Full 1988 to 2026 series and minute bars.
GSK key facts
- GSK plc (GSK) closed at £18.56 on Sep 29, 2026 on LSE.
- GSK's all time high close is £22.70, set on Jan 8, 1999; its all time low close is £2.33 on Aug 26, 1988.
- GSK's 52 week range is £15.90 to £22.81.
- GSK returned +22.3% over the year to Sep 29, 2026 and +31.4% over five years.
- Over ten years GSK returned +12%, +1.2% a year compounded.
- GSK's deepest drawdown was -56.7% from Jan 8, 1999 to Apr 23, 2009.
- DataCedar holds 9,807 daily sessions of GSK history from Jul 1, 1988 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
GSK price chart, 1988 to 2026
GSK returns
Price return from the last close on or before the window start to Sep 29, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +0.1% |
| 3 months | -6.2% |
| 6 months | -9.4% |
| Year to date | +1.4% |
| 1 year | +22.3% |
| 3 years | +24.5% |
| 5 years | +31.4% |
| 10 years | +12.4% |
| Since Jul 1, 1988 | +656.1% |
| Compound annual growth, 38.2 years | +5.4% |
GSK records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- £22.70 on Jan 8, 1999
- All time low close
- £2.33 on Aug 26, 1988
- 52 week high
- £22.81 on Feb 18, 2026
- 52 week low
- £15.90 on Oct 1, 2025
- Deepest drawdown
- -56.7% from Jan 8, 1999 to Apr 23, 2009, not yet recovered
- Best single session
- +20.7% on Feb 2, 1998
- Worst single session
- -13.0% on Feb 24, 1998
- Volatility, 1 year annualised
- 25.0%
- Sessions closing higher, 1 year
- 48%
- Growth of 1 since 1988
- 7.6×
- Best calendar year
- 1991, +101%
- Worst calendar year
- 2002, -31%
GSK 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. 1988 starts on Jul 1, 1988; 2026 runs to Sep 29, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | £18.28 | £22.81 | £16.90 | £18.56 | +1.8% | 1.5B | 188 |
| 2025 | £13.44 | £20.57 | £12.42 | £18.24 | +35.6% | 2.3B | 253 |
| 2024 | £14.59 | £18.22 | £12.82 | £13.46 | -7.1% | 2.1B | 254 |
| 2023 | £14.20 | £17.24 | £13.01 | £14.49 | +0.9% | 2.1B | 251 |
| 2022 | £15.99 | £27.42 | £12.79 | £14.35 | -11.1% | 2.6B | 250 |
| 2021 | £13.65 | £16.38 | £11.97 | £16.15 | +19.8% | 2.2B | 253 |
| 2020 | £17.87 | £18.65 | £12.90 | £13.48 | -24.5% | 2.5B | 254 |
| 2019 | £14.75 | £18.58 | £14.35 | £17.86 | +19.4% | 2.2B | 253 |
| 2018 | £13.27 | £16.54 | £12.40 | £14.96 | +12.8% | 2.6B | 253 |
| 2017 | £15.67 | £17.29 | £12.74 | £13.26 | -15.3% | 2.2B | 252 |
| 2016 | £13.61 | £17.49 | £13.16 | £15.65 | +13.9% | 2.2B | 253 |
| 2015 | £13.89 | £16.46 | £12.29 | £13.75 | -0.1% | 2.2B | 253 |
| 2014 | £16.16 | £17.09 | £12.01 | £13.77 | -14.6% | 2.1B | 253 |
| 2013 | £13.39 | £18.15 | £13.36 | £16.11 | +20.8% | 1.7B | 253 |
| 2012 | £14.80 | £15.55 | £13.13 | £13.34 | -9.2% | 2B | 251 |
| 2011 | £12.72 | £14.75 | £11.20 | £14.69 | +18.8% | 2.3B | 252 |
| 2010 | £13.21 | £13.37 | £10.85 | £12.37 | -6.0% | 2.3B | 253 |
| 2009 | £12.55 | £13.43 | £9.79 | £13.16 | +2.8% | 2.8B | 253 |
| 2008 | £12.62 | £13.97 | £9.82 | £12.80 | +0.5% | 4.4B | 254 |
| 2007 | £13.39 | £15.07 | £11.41 | £12.74 | -4.8% | 6.5B | 253 |
| 2006 | £14.56 | £15.81 | £13.15 | £13.38 | -8.5% | 5B | 252 |
| 2005 | £12.15 | £15.40 | £11.57 | £14.61 | +20.3% | 4.4B | 260 |
| 2004 | £12.72 | £12.91 | £10.01 | £12.15 | -4.5% | 5.5B | 262 |
| 2003 | £11.84 | £14.14 | £9.74 | £12.72 | +7.4% | 3.9B | 261 |
| 2002 | £17.11 | £17.93 | £9.88 | £11.84 | -30.8% | 4.1B | 261 |
| 2001 | £18.77 | £20.44 | £15.89 | £17.11 | -8.8% | 3.5B | 261 |
| 2000 | £17.37 | £21.00 | £13.99 | £18.77 | +8.0% | 2.1B | 260 |
| 1999 | £20.52 | £23.15 | £14.72 | £17.37 | -15.4% | 1.7B | 261 |
| 1998 | £14.29 | £20.84 | £14.29 | £20.52 | +43.6% | 1.4B | 261 |
| 1997 | £9.40 | £15.77 | £8.78 | £14.29 | +52.0% | 818M | 261 |
| 1996 | £9.07 | £10.35 | £7.59 | £9.40 | +3.7% | 1.4B | 262 |
| 1995 | £6.56 | £9.09 | £5.93 | £9.07 | +38.3% | 484.2M | 260 |
| 1994 | £7.18 | £7.18 | £5.27 | £6.56 | -8.6% | 0 | 260 |
| 1993 | £7.85 | £7.91 | £5.09 | £7.18 | -8.5% | 0 | 261 |
| 1992 | £8.44 | £9.21 | £6.42 | £7.85 | -7.0% | 0 | 262 |
| 1991 | £4.20 | £8.54 | £4.01 | £8.44 | +101.2% | 0 | 261 |
| 1990 | £3.89 | £4.33 | £3.37 | £4.20 | +8.0% | 0 | 261 |
| 1989 | £2.64 | £4.07 | £2.62 | £3.89 | +47.0% | 0 | 260 |
| 1988 | £2.45 | £2.80 | £2.33 | £2.64 | n/a | 0 | 131 |
GSK monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | £18.56 | +0.1% |
| August 2026 | £18.54 | -4.0% |
| July 2026 | £19.31 | -2.5% |
| June 2026 | £19.81 | +5.3% |
| May 2026 | £18.81 | -2.4% |
| April 2026 | £19.28 | -6.6% |
| March 2026 | £20.64 | -6.2% |
| February 2026 | £22.01 | +17.3% |
| January 2026 | £18.76 | +2.9% |
| December 2025 | £18.24 | +1.9% |
| November 2025 | £17.91 | +0.6% |
| October 2025 | £17.80 | +13.1% |
About the GSK data
Daily bars. 9,807 sessions from Jul 1, 1988 to Sep 29, 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 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 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 Jul 1, 1988, 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/GSK/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on LSE
Common questions
GSK share price history
