Costain Group PLC (COST.L) LSE

Currency In GBp

COST.L Historical Return

If you invested 1000 GBp in Costain Group PLC (COST.L) 10 years ago, it would be worth 907.8 GBp as of October 02, 2026, based on a reinvested dividends scenario. Over the same period, a 1000 GBp investment made 5 years ago would be worth 4,980.95 GBp, while 1000 GBp invested 1 year ago would be worth 1,889.45 GBp. This corresponds to total returns of -9.22%, 398.1%, 88.95%, respectively, with annualized returns of -0.96%, 37.89%, 88.95%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

COST.L Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 01, 2026	262	257.5	257.5	262	254	1.52M
September 30, 2026	262.42	260	260	264.5	258	1.17M
September 29, 2026	262.5	260.5	260.5	263	257.5	789,552
September 28, 2026	260	262.5	262.5	265	255.5	990,206
September 25, 2026	256	256	256	259.5	253.5	1.77M
September 24, 2026	250	254	254	256	250	1.31M
September 23, 2026	252	253	253	256	251.5	1.31M
September 22, 2026	254.5	255.5	255.5	257.5	249	7.42M
September 21, 2026	250	254	254	259	250	739,795
September 18, 2026	251	254.5	254.5	255.2	247.5	2.24M
September 17, 2026	242.5	250	250	253	242.5	3.83M
September 16, 2026	225	246.5	246.5	250	225	2.66M
September 15, 2026	223	225.5	225.5	228.66	223	786,908
September 11, 2026	233.5	229	229	233.5	222.5	2.52M
September 10, 2026	224	222.5	222.5	227.33	222	3.69M
September 09, 2026	229.5	226.5	226.5	230	223.5	1.49M
September 08, 2026	231.23	225	225	235.5	219.5	4.19M
September 07, 2026	224.15	225	225	233	224.15	476,774
September 04, 2026	226	227.5	227.5	228	224	585,541
September 03, 2026	232	225	225	232	218	604,829
September 02, 2026	234.5	221.5	221.5	234.5	217	576,207
September 01, 2026	228.14	224	224	230.5	220.5	635,810
August 28, 2026	231.5	230.5	230.5	235	230	1.18M
August 27, 2026	232	230.5	230.5	236	230.5	375,265
August 26, 2026	231.17	232.5	232.5	238	226.5	625,393
August 25, 2026	226.4	231	231	233.5	208.5	649,640
August 24, 2026	230	225.5	225.5	232	224	1.11M
August 21, 2026	218	226.5	226.5	228.5	218	694,437
August 20, 2026	229.35	221	221	229.95	219.5	442,094
August 19, 2026	227.75	225.5	225.5	232.5	223	532,731
August 18, 2026	226.6	227.5	227.5	236	221	956,835
August 17, 2026	241	228.5	228.5	241	228.5	642,476
August 14, 2026	236	234.5	234.5	240	228.5	2.73M
August 13, 2026	228.5	229.5	229.5	237.8	219.28	3.03M
August 12, 2026	221	219.5	219.5	226.5	210.5	1.44M
August 11, 2026	217	218.5	218.5	220.5	215	312,497
August 10, 2026	217.61	216.5	216.5	220.15	214.5	281,323
August 07, 2026	212.6	215.5	215.5	217.05	209	377,695
August 06, 2026	208	215.5	215.5	217.5	208	364,004
August 05, 2026	204	214	214	216	204	453,157
August 04, 2026	201.5	211.5	211.5	215.25	201.5	520,254
August 03, 2026	202	212.5	212.5	215	202	252,265
July 31, 2026	210.5	211	211	216.5	210.5	719,256
July 30, 2026	210.43	211.5	211.5	213	204	710,085
July 29, 2026	209	208	208	213	206.5	700,715
July 28, 2026	219	211.5	211.5	219	206.5	463,123
July 27, 2026	218.1	214	214	220.5	214	354,553
July 23, 2026	217.5	216	216	219	215	325,558
July 22, 2026	206.5	218	218	220	206.5	524,778
July 21, 2026	212	215	215	218.5	211	1M
July 20, 2026	205	210	210	217.5	205	628,570
July 17, 2026	211	210	210	212.5	209	592,758
July 16, 2026	212	213	213	213	208.5	688,989
July 15, 2026	206	211.5	211.5	215.5	204	959,780
July 14, 2026	218.5	207	207	218.5	204.36	415,073
July 13, 2026	207.5	209	209	209.5	205	557,967
July 10, 2026	209.5	209	209	210	207	1.04M
July 09, 2026	214	209.5	209.5	214	205.5	2.87M
July 08, 2026	208	205	205	209	203.5	2.35M
July 07, 2026	218	209	209	218	207.5	1.32M