If you invested 1000 GBp in Costain Group PLC (COST.L) 10 years ago, it would be worth 794.49 GBp as of August 02, 2026, based on a reinvested dividends scenario. Over the same period, a 1000 GBp investment made 5 years ago would be worth 4,093.91 GBp, while 1000 GBp invested 1 year ago would be worth 1,296.63 GBp. This corresponds to total returns of -20.55%, 309.39%, 29.66%, respectively, with annualized returns of -2.27%, 32.54%, 29.66%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| 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 |
| July 06, 2026 | 207.5 | 217.5 | 217.5 | 218 | 207.5 | 1.89M |
| July 03, 2026 | 209 | 217 | 217 | 219.5 | 209 | 3.95M |
| July 02, 2026 | 213 | 210.5 | 210.5 | 216 | 210.5 | 936,284 |
| July 01, 2026 | 204.5 | 213.5 | 213.5 | 213.67 | 201.5 | 534,772 |
| June 30, 2026 | 216 | 207.5 | 207.5 | 216 | 206.36 | 338,029 |
| June 29, 2026 | 214 | 205.5 | 205.5 | 214 | 204 | 421,096 |
| June 26, 2026 | 210.41 | 210 | 210 | 212.55 | 201 | 790,424 |
| June 25, 2026 | 204.88 | 212 | 212 | 214 | 200 | 647,688 |
| June 24, 2026 | 202.5 | 207 | 207 | 209.5 | 202.5 | 272,449 |
| June 23, 2026 | 202.5 | 206 | 206 | 213 | 202 | 420,415 |
| June 22, 2026 | 206.53 | 210 | 210 | 210 | 204 | 609,419 |
| June 19, 2026 | 212.5 | 207 | 207 | 212.5 | 204.5 | 2.72M |
| June 18, 2026 | 209 | 210.5 | 210.5 | 211.5 | 206.5 | 704,607 |
| June 17, 2026 | 206 | 210 | 210 | 210 | 203.5 | 552,794 |
| June 16, 2026 | 202 | 204 | 204 | 207 | 200.6 | 710,652 |
| June 15, 2026 | 198 | 202 | 202 | 203.5 | 194 | 1.39M |
| June 12, 2026 | 195 | 195 | 195 | 198.4 | 189.49 | 1.13M |
| June 11, 2026 | 188.8 | 193.6 | 193.6 | 193.8 | 186.4 | 397,102 |
| June 10, 2026 | 190 | 189 | 189 | 190.6 | 185.8 | 382,393 |
| June 09, 2026 | 192.6 | 189 | 189 | 194.2 | 189 | 415,936 |
| June 08, 2026 | 187 | 192.6 | 192.6 | 195 | 187 | 487,918 |
| June 05, 2026 | 191 | 193.8 | 193.8 | 197.75 | 191 | 872,722 |
| June 04, 2026 | 194.6 | 194.8 | 194.8 | 195 | 186.4 | 531,541 |
| June 03, 2026 | 192.52 | 193.8 | 193.8 | 195 | 186.2 | 661,632 |
| June 02, 2026 | 189.13 | 192.6 | 192.6 | 194 | 187.4 | 382,533 |
| June 01, 2026 | 196 | 189.8 | 189.8 | 196 | 188 | 746,506 |
| May 29, 2026 | 199.8 | 193.8 | 193.8 | 199.8 | 189.6 | 687,179 |
| May 28, 2026 | 185 | 191 | 191 | 194 | 185 | 1.38M |
| May 27, 2026 | 199.8 | 191.2 | 191.2 | 199.8 | 190.6 | 1.01M |
| May 26, 2026 | 191.69 | 196 | 196 | 198.8 | 191.69 | 459,545 |
| May 22, 2026 | 192.6 | 192.8 | 192.8 | 195.4 | 191 | 408,037 |
| May 21, 2026 | 193.4 | 192.4 | 192.4 | 196.8 | 189.2 | 1.04M |
| May 20, 2026 | 193 | 193.4 | 193.4 | 194.8 | 188.6 | 4.06M |
| May 19, 2026 | 206 | 193 | 193 | 206 | 191.4 | 1.78M |
| May 18, 2026 | 197.4 | 197 | 197 | 202.5 | 196.2 | 1.79M |
| May 15, 2026 | 199 | 201.5 | 201.5 | 202.5 | 198.6 | 1.2M |
| May 14, 2026 | 194.93 | 203 | 203 | 206 | 191.8 | 2M |
| May 13, 2026 | 194.51 | 196.6 | 196.6 | 197.8 | 193 | 921,485 |
| May 12, 2026 | 196.2 | 195 | 195 | 197.62 | 192.8 | 1.19M |
| May 11, 2026 | 198 | 197.6 | 197.6 | 198 | 192.6 | 851,189 |
| May 08, 2026 | 193.2 | 194.2 | 194.2 | 198.4 | 193.2 | 493,209 |
| May 07, 2026 | 199 | 195.6 | 195.6 | 199 | 188.4 | 1.19M |