Stock listing

LSE:COST Costain Group PLC Share Price

Home listing (LSE) of Costain Group PLC

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Share price · LSE:COST

253.00p GBX (pence) -5.00 (-1.9%)

Close on Oct 30, 2026

Past year +63.2% · daily closes, Oct 30, 2025 – Oct 30, 2026, adjusted for splits
Day range
250.50p – 257.50p GBX (pence)Oct 30, 2026
Volume
1.07M sharesOct 30, 2026
Market cap
£661.6M GBPAt the close on Oct 30, 2026 · price × 261.5M shares outstanding
52-week range
140.20p – 267.50p GBX (pence)Lowest and highest trades, Oct 31, 2025 – Oct 30, 2026
Traded on an average day
£3.81M GBPMedian day 973,523 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026
Costain Group PLC logo

Prices by listing

ListingLastChangeVolumeOpenHighLowPrevious closePrice from
LSE:COST · Home253.00p GBX (pence)-5.00 (-1.9%)1,066,392255.00p257.50p250.50p258.00pClose on Oct 30, 2026
Frankfurt:5JY€3.00 EUR-0.06 (-2.0%)—€3.06€3.06€3.00€3.06Close on Oct 30, 2026

Daily closes

Last 3 months, Jul 30, 2026 – Oct 30, 2026 · LSE:COST · GBX (pence), adjusted for splits

DayCloseChange%OpenHighLowVolume
253.00p-5.00-1.9%255.00p257.50p250.50p1,066,392
258.00p-1.50-0.6%256.00p263.50p256.00p589,450
259.50p-4.00-1.5%264.00p267.50p257.50p993,143
263.50p+4.00+1.5%258.00p265.23p251.50p683,698
259.50p+10.50+4.2%249.50p259.50p249.50p532,963
249.00p+0.50+0.2%248.00p250.50p246.50p330,341
248.50p-5.50-2.2%252.50p255.00p248.50p2,024,900
254.00p+2.00+0.8%251.00p255.50p250.50p482,994
252.00p-2.00-0.8%250.00p257.00p249.00p819,713
254.00p+1.00+0.4%248.00p255.50p248.00p1,244,426
253.00p+6.50+2.6%248.50p254.50p247.00p2,515,097
246.50p-1.50-0.6%244.50p249.50p241.52p2,742,963
248.00p+4.50+1.8%242.00p251.00p242.00p1,495,911
243.50p+0.50+0.2%245.00p246.19p241.50p2,297,249
243.00p+2.00+0.8%241.00p243.50p240.00p706,469
241.00p+0.50+0.2%243.00p245.00p239.50p808,533
240.50p-3.00-1.2%246.50p246.50p232.50p1,278,976
243.50p-10.00-3.9%258.00p258.00p242.00p916,953
253.50p-0.50-0.2%255.50p256.50p248.00p683,499
254.00p-8.00-3.1%262.00p263.50p254.00p1,128,071
262.00p+4.50+1.7%262.00p263.50p257.00p1,416,248
257.50p-2.50-1.0%262.00p262.00p254.00p1,518,255
260.00p-0.50-0.2%261.50p264.50p258.00p1,240,163
260.50p-2.00-0.8%262.50p263.00p257.50p789,553
262.50p+6.50+2.5%260.00p265.00p255.50p990,208
256.00p+2.00+0.8%256.00p259.50p253.50p1,767,967
254.00p+1.00+0.4%250.50p256.00p250.00p1,312,379
253.00p-2.50-1.0%252.00p256.00p251.50p1,311,690
255.50p+1.50+0.6%254.50p257.50p249.00p8,567,004
254.00p-0.50-0.2%250.00p259.00p250.00p739,797
254.50p+4.50+1.8%251.00p255.20p247.50p2,236,869
250.00p+3.50+1.4%242.50p253.00p242.50p3,832,546
246.50p+21.00+9.3%225.00p250.00p225.00p2,659,867
225.50p+0.50+0.2%223.00p228.66p223.00p786,906
225.00p-4.00-1.7%229.50p230.50p223.00p10,544,045
229.00p+6.50+2.9%233.50p233.50p222.50p7,058,145
222.50p-4.00-1.8%224.00p227.50p222.00p3,694,815
226.50p+1.50+0.7%225.00p230.00p223.50p1,494,951
225.00p0.000.0%225.00p235.50p219.50p4,574,704
225.00p-2.50-1.1%228.00p233.00p224.15p476,774
227.50p+2.50+1.1%226.00p228.00p224.00p3,653,625
225.00p+3.50+1.6%232.00p232.00p218.00p604,835
221.50p-2.50-1.1%234.50p234.50p217.00p576,214
224.00p-6.50-2.8%229.50p230.50p220.50p635,814
230.50p0.000.0%231.50p235.00p230.00p1,184,339
230.50p-2.00-0.9%232.00p236.00p230.50p375,272
232.50p+1.50+0.6%231.50p238.00p226.50p625,397
231.00p+5.50+2.4%227.00p233.50p225.00p528,139
225.50p-1.00-0.4%230.00p232.00p224.00p1,106,451
226.50p+5.50+2.5%218.00p228.50p218.00p694,439
221.00p-4.50-2.0%225.50p229.95p219.50p442,094
225.50p-2.00-0.9%228.50p232.50p223.00p532,730
227.50p-1.00-0.4%226.00p236.00p221.00p956,837
228.50p-6.00-2.6%241.00p241.00p228.50p642,479
234.50p+5.00+2.2%236.00p240.00p228.50p2,730,959
229.50p+10.00+4.6%228.50p237.80p219.28p3,026,665
219.50p+1.00+0.5%221.00p226.50p210.50p1,442,347
218.50p+2.00+0.9%217.00p220.50p215.00p312,496
216.50p+1.00+0.5%216.50p220.15p214.50p281,329
215.50p0.000.0%214.50p217.05p209.00p1,608,064
215.50p+1.50+0.7%208.00p217.50p208.00p364,003
214.00p+2.50+1.2%204.00p216.00p204.00p453,159
211.50p-1.00-0.5%201.50p215.25p201.50p520,255
212.50p+1.50+0.7%202.00p215.00p202.00p252,268
211.00p-0.50-0.2%210.50p216.50p210.50p719,253
211.50p+3.50+1.7%209.50p213.00p204.00p710,087
Ticker
LSE:COST
Asset type
Stock
Sector
Industrials
Industry
Construction & engineering
Exchange
LSE
Currency
GBX

What changed lately

Calls

Replays

  • Costain Group (LSE:COST) — Half Year Results

    Mon, Aug 17, 2026 · 5:00 AM ET

    Watch Transcript

  • Costain Group (LSE:COST) — Full Year 2025 Results Q&A

    Wed, Mar 11, 2026 · 6:00 AM ET

    Watch Transcript

  • Costain Group (LSE:COST) — 2025 Half Year Results Q&A

    Thu, Aug 21, 2025 · 5:00 AM ET

    Watch Transcript

Latest news

Total Voting Rights

Nov 2, 2026

Appointment of Joint Corporate Broker

Oct 22, 2026

Closed 248.50p (-2.2%) on Oct 22, 2026

Holding(s) in Company

Oct 20, 2026

Closed 252.00p (-0.8%) on Oct 20, 2026

Additional Listing

Oct 20, 2026

Closed 252.00p (-0.8%) on Oct 20, 2026

Scrip Dividend Documentation

Oct 20, 2026

Closed 252.00p (-0.8%) on Oct 20, 2026

Transaction in Own Shares

Oct 19, 2026

Closed 254.00p (+0.4%) on Oct 19, 2026

Director/PDMR Shareholding

Oct 12, 2026

Closed 243.00p (+0.8%) on Oct 12, 2026

Update on AGM Political Donations Resolution Vote

Oct 9, 2026

Closed 241.00p (+0.2%) on Oct 9, 2026

Costain selected for Pagabo Framework

Oct 2, 2026

Closed 262.00p (+1.7%) on Oct 2, 2026

All Costain Group PLC news

Decks

Costain Group PLC on 6ix

Sector
Industrials
Industry
Construction & engineering
News releases
53 in the last 12 months · 291 in all · newest Nov 2, 2026 · oldest 2010
Calls
7 calls with a replay · 7 with a transcript · latest Aug 17, 2026
Decks
11 decks · latest Aug 12, 2026

Where Costain Group PLC is listed

ListingExchangeCountryCurrency
LSE:COST · Home listing · This pageLSEUnited KingdomGBX
gettex:5JYgettexGermanyEUR
LS Exchange:A1CUSQLS ExchangeGermanyEUR
Lang & Schwarz:A1CUSQLang & SchwarzGermanyEUR
Turquoise:COSTLTurquoiseUnited KingdomGBX
Aquis:COSTLAquisUnited KingdomGBX
OTC:CSGQFOTCUnited StatesUSD
OTC:CTNGYOTCUnited StatesUSD
AQUIS:COST.GBAQUISUnited KingdomGBX
Dusseldorf:5JYDusseldorfGermanyEUR
Frankfurt:5JYFrankfurtGermanyEUR
Munich:5JYMunichGermanyEUR
Stuttgart:5JYStuttgartGermanyEUR

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