LSE · WATR · stock

Water Intelligence plc (WATR) stock price history

Every LSE trading session of Water Intelligence plc from Feb 24, 2005 to Sep 28, 2026: 5,462 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.

WATR adjusted close, 2005 to 2026

WATRWater Intelligence plc
£3.33+23.1% over one year
2010201520202025
£50.42
All time high, 2005
£3.60
52 week high, £2.10 low
5,462
Daily sessions since 2005

Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2005 to 2026 series and minute bars.

WATR key facts

  • Water Intelligence plc (WATR) closed at £3.33 on Sep 28, 2026 on LSE.
  • WATR's all time high close is £50.42, set on Mar 7, 2005; its all time low close is £0.2500 on Feb 13, 2012.
  • WATR's 52 week range is £2.10 to £3.60.
  • WATR returned +23.1% over the year to Sep 28, 2026 and -73.7% over five years.
  • Over ten years WATR returned +296%, +14.7% a year compounded.
  • WATR's deepest drawdown was -99.5% from Mar 18, 2005 to Feb 13, 2012.
  • DataCedar holds 5,462 daily sessions of WATR history from Feb 24, 2005 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.

WATR price chart, 2005 to 2026

WATR adjusted close, Feb 24, 2005 to Sep 28, 2026£0.2500£1.41£7.97£45.0220052010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

WATR returns

Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.

PeriodReturn
1 month-3.6%
3 months+23.1%
6 months+38.5%
Year to date+8.7%
1 year+23.1%
3 years+0.8%
5 years-73.7%
10 years+295.8%
Since Feb 24, 2005-92.6%
Compound annual growth, 21.6 years-11.4%

WATR records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close
£50.42 on Mar 7, 2005
All time low close
£0.2500 on Feb 13, 2012
52 week high
£3.60 on Aug 17, 2026
52 week low
£2.10 on Apr 2, 2026
Deepest drawdown
-99.5% from Mar 18, 2005 to Feb 13, 2012, not yet recovered
Best single session
+600.0% on Jul 19, 2010
Worst single session
-85.7% on Jul 20, 2010
Volatility, 1 year annualised
36.8%
Sessions closing higher, 1 year
35%
Best calendar year
2007, +203%
Worst calendar year
2010, -85%

WATR 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 Feb 24, 2005; 2026 runs to Sep 28, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026£2.85£3.60£2.10£3.33+16.7%5M187
2025£4.15£4.30£2.58£2.85-30.9%7.8M253
2024£4.05£4.50£3.15£4.13+1.9%3.9M254
2023£6.60£6.90£2.50£4.05-38.6%4.9M251
2022£11.00£11.40£5.50£6.60-40.0%2.8M250
2021£5.00£13.94£4.80£11.00+120.0%5.6M253
2020£2.70£5.38£2.50£5.00+85.2%3.3M254
2019£2.33£4.24£2.28£2.70+15.9%3.9M253
2018£1.69£4.50£1.67£2.33+43.4%5.5M253
2017£0.9746£1.65£0.9100£1.63+71.1%3.9M252
2016£0.6400£0.9800£0.5100£0.9500+53.2%1.8M253
2015£0.3500£0.8200£0.2500£0.6200+82.4%4.2M253
2014£0.5000£0.5700£0.3100£0.3400-30.6%811.9K253
2013£0.2900£0.5300£0.1500£0.4900+66.1%1.3M253
2012£0.3100£0.3500£0.2500£0.2950-13.2%192.7K251
2011£0.5700£0.5700£0.2807£0.3400-40.4%232.6K252
2010£3.90£3.90£0.5200£0.5700-85.4%253.9K253
2009£4.20£6.60£1.44£3.90-7.1%66.9K253
2008£29.11£34.51£3.30£4.20-84.6%117.1K254
2007£9.00£30.61£3.00£27.31+203.3%103.6K253
2006£25.51£31.57£6.00£9.00-64.7%43.9K252
2005£45.02£45.02£12.00£25.51n/a5.4K222

WATR monthly closes, last 12 months

MonthMonth end closeChange
September 2026£3.33-3.6%
August 2026£3.45+12.2%
July 2026£3.08+9.8%
June 2026£2.80+15.5%
May 2026£2.43-4.9%
April 2026£2.55+18.1%
March 2026£2.16-27.0%
February 2026£2.96-6.6%
January 2026£3.17+11.2%
December 2025£2.85-4.4%
November 2025£2.98+13.3%
October 2025£2.63-4.7%

About the WATR data

Daily bars. 5,462 sessions from Feb 24, 2005 to Sep 28, 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 Feb 24, 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/WATR/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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Common questions

WATR share price history

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