If you invested 1000 GBp in Diploma PLC (DPLM.L) 10 years ago, it would be worth 10,544.36 GBp as of August 01, 2026, based on a reinvested dividends scenario. Over the same period, a 1000 GBp investment made 5 years ago would be worth 2,632.51 GBp, while 1000 GBp invested 1 year ago would be worth 1,379.18 GBp. This corresponds to total returns of 954.44%, 163.25%, 37.92%, respectively, with annualized returns of 26.55%, 21.36%, 37.92%.
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 | 7,380 | 7,320 | 7,320 | 7,490 | 7,310 | 321,131 |
| July 30, 2026 | 7,120 | 7,330 | 7,330 | 7,365 | 7,100 | 290,750 |
| July 29, 2026 | 7,445 | 7,110 | 7,110 | 7,460 | 7,110 | 413,346 |
| July 28, 2026 | 7,615 | 7,420 | 7,420 | 7,720 | 7,420 | 483,691 |
| July 27, 2026 | 7,535 | 7,630 | 7,630 | 7,630 | 7,535 | 259,096 |
| July 24, 2026 | 7,410 | 7,520 | 7,520 | 7,535 | 7,400 | 200,906 |
| July 23, 2026 | 7,570 | 7,430 | 7,430 | 7,570 | 7,385 | 194,178 |
| July 22, 2026 | 7,460 | 7,585 | 7,585 | 7,585 | 7,420 | 296,013 |
| July 21, 2026 | 7,355 | 7,470 | 7,470 | 7,491.52 | 7,295 | 321,545 |
| July 20, 2026 | 7,240 | 7,370 | 7,370 | 7,663.22 | 7,205 | 1.46M |
| July 17, 2026 | 7,145 | 7,240 | 7,240 | 7,270 | 7,115 | 675,240 |
| July 16, 2026 | 6,890 | 7,195 | 7,195 | 7,195 | 6,875 | 757,463 |
| July 15, 2026 | 6,805 | 6,770 | 6,770 | 6,845 | 6,740 | 221,836 |
| July 14, 2026 | 6,735 | 6,805 | 6,805 | 6,875 | 6,735 | 250,129 |
| July 13, 2026 | 6,765 | 6,805 | 6,805 | 6,835 | 6,730 | 289,056 |
| July 10, 2026 | 6,775 | 6,800 | 6,800 | 6,815 | 6,725 | 434,744 |
| July 09, 2026 | 6,555 | 6,750 | 6,750 | 6,770 | 6,555 | 282,087 |
| July 08, 2026 | 6,760 | 6,685 | 6,685 | 6,760 | 6,655 | 311,469 |
| July 07, 2026 | 7,015 | 6,785 | 6,785 | 7,075 | 6,785 | 276,885 |
| July 06, 2026 | 7,200 | 7,070 | 7,070 | 7,200 | 7,030 | 170,080 |
| July 03, 2026 | 7,220 | 7,200 | 7,200 | 7,245 | 7,135 | 149,900 |
| July 02, 2026 | 7,130 | 7,195 | 7,195 | 7,225 | 7,085 | 322,281 |
| July 01, 2026 | 7,105 | 7,185 | 7,185 | 7,185 | 7,050 | 306,488 |
| June 30, 2026 | 7,090 | 7,130 | 7,130 | 7,210 | 7,075 | 283,820 |
| June 29, 2026 | 7,090 | 7,050 | 7,050 | 7,125 | 7,043.5 | 640,098 |
| June 26, 2026 | 7,120 | 7,095 | 7,095 | 7,130 | 6,985 | 226,366 |
| June 25, 2026 | 7,060 | 7,150 | 7,150 | 7,230 | 7,045 | 263,810 |
| June 24, 2026 | 7,100 | 7,040 | 7,040 | 7,120 | 7,000 | 339,081 |
| June 23, 2026 | 7,110 | 7,090 | 7,090 | 7,135 | 7,025 | 330,191 |
| June 22, 2026 | 7,210 | 7,220 | 7,220 | 7,270 | 7,160 | 375,159 |
| June 19, 2026 | 7,120 | 7,200 | 7,200 | 7,200 | 7,095 | 858,351 |
| June 18, 2026 | 7,055 | 7,135 | 7,135 | 7,140 | 7,020 | 397,451 |
| June 17, 2026 | 7,060 | 7,040 | 7,040 | 7,095 | 6,990 | 287,356 |
| June 16, 2026 | 7,015 | 7,040 | 7,040 | 7,120 | 6,980 | 463,449 |
| June 15, 2026 | 6,990 | 6,980 | 6,980 | 7,060 | 6,910 | 326,222 |
| June 12, 2026 | 6,975 | 6,885 | 6,885 | 6,995 | 6,845 | 341,587 |
| June 11, 2026 | 6,965 | 6,850 | 6,850 | 6,995 | 6,840 | 250,050 |
| June 10, 2026 | 7,035 | 6,975 | 6,975 | 7,093.1 | 6,915 | 264,225 |
| June 09, 2026 | 7,060 | 7,000 | 7,000 | 7,191.87 | 7,000 | 228,252 |
| June 08, 2026 | 6,925 | 7,060 | 7,060 | 7,070 | 6,895 | 643,137 |
| June 05, 2026 | 7,160 | 7,020 | 7,020 | 7,160 | 7,010 | 230,923 |
| June 04, 2026 | 7,040 | 7,130 | 7,130 | 7,135 | 7,010 | 231,131 |
| June 03, 2026 | 7,035 | 7,050 | 7,050 | 7,050 | 6,960 | 268,284 |
| June 02, 2026 | 7,000 | 7,035 | 7,035 | 7,055 | 6,965 | 356,102 |
| June 01, 2026 | 6,990 | 6,900 | 6,900 | 7,035 | 6,830 | 607,246 |
| May 29, 2026 | 6,915 | 6,990 | 6,990 | 7,030 | 6,855 | 1.53M |
| May 28, 2026 | 6,900 | 6,880 | 6,880 | 6,940 | 6,840 | 417,685 |
| May 27, 2026 | 7,010 | 6,955 | 6,955 | 7,100 | 6,955 | 293,614 |
| May 26, 2026 | 7,055 | 7,010 | 7,010 | 7,089.95 | 6,980 | 260,414 |
| May 22, 2026 | 6,915 | 7,025 | 7,025 | 7,035 | 6,875 | 332,348 |
| May 21, 2026 | 6,860 | 6,845 | 6,845 | 6,870 | 6,770 | 256,271 |
| May 20, 2026 | 6,825 | 6,870 | 6,870 | 6,935 | 6,700 | 492,905 |
| May 19, 2026 | 6,955 | 6,835 | 6,835 | 7,090 | 6,790 | 746,817 |
| May 18, 2026 | 6,670 | 6,625 | 6,625 | 6,745 | 6,615 | 713,044 |
| May 15, 2026 | 6,750 | 6,720 | 6,720 | 6,775 | 6,643.94 | 359,293 |
| May 14, 2026 | 6,700 | 6,855 | 6,855 | 6,855 | 6,695 | 270,064 |
| May 13, 2026 | 6,735 | 6,685 | 6,685 | 6,765 | 6,600 | 373,923 |
| May 12, 2026 | 6,840 | 6,690 | 6,690 | 6,870 | 6,690 | 945,912 |
| May 11, 2026 | 6,925 | 6,900 | 6,900 | 6,970 | 6,875 | 424,135 |
| May 08, 2026 | 7,000 | 6,945 | 6,945 | 7,045 | 6,925 | 340,168 |