Diploma (DPLM) Stock Chart & Stock Price History GBX 5,315 -5.00 (-0.09%) As of 12:41 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsHeadlinesInsider TradesBuy This Stock Diploma Stock Price Performance The Diploma (DPLM) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 19.12%, with a year-to-date return of 25.06%. In the past month, the stock has decreased 2.12%, reflecting recent market activity. As of the latest close, Diploma traded at GBX 5,320 with a market cap of £7.13 billion and volume of 325,389 shares. Five years ago, the stock traded at GBX 2,174, representing a 144.48% increase over that period. At the time, it had a market cap of £2.46 billion and a volume of 476,888 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-2.12%1 Month Performance-2.12%3 Month Performance+8.78%Year-To-Date Performance+25.06%1 Year Performance+19.12%5 Year Performance+144.48% DPLM Stock Chart for Thursday, September, 25, 2025 DPLM Chart by TradingView Diploma Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization09/25/2025GBX 5,320GBX 5,315-0.09%GBX 5,330GBX 5,245175,746 shs£7.12 billion09/24/2025GBX 5,397.87GBX 5,320-1.44%GBX 5,375GBX 5,300.16325,389 shs£7.13 billion09/23/2025GBX 5,445GBX 5,397.87-0.87%GBX 5,505GBX 5,385285,545 shs£7.23 billion09/22/2025GBX 5,430GBX 5,445+0.28%GBX 5,490GBX 5,400188,169 shs£7.30 billion09/19/2025GBX 5,449.77GBX 5,430-0.36%GBX 5,470GBX 5,375698,359 shs£7.28 billion09/18/2025GBX 5,420.21GBX 5,449.77+0.55%GBX 5,460GBX 5,400369,658 shs£7.30 billion09/17/2025GBX 5,451.10GBX 5,420.21-0.57%GBX 5,455GBX 5,410159,459 shs£7.26 billion09/16/2025GBX 5,500GBX 5,451.10-0.89%GBX 5,515GBX 5,420230,669 shs£7.31 billion09/15/2025GBX 5,540GBX 5,500-0.72%GBX 5,575GBX 5,450255,655 shs£7.37 billion09/12/2025GBX 5,540GBX 5,540GBX 5,575GBX 5,500167,640 shs£7.43 billion09/11/2025GBX 5,440GBX 5,540+1.84%GBX 5,565GBX 5,450239,194 shs£7.43 billion09/10/2025GBX 5,430GBX 5,440+0.18%GBX 5,487.50GBX 5,425175,203 shs£7.29 billion09/09/2025GBX 5,495GBX 5,430-1.18%GBX 5,520GBX 5,420264,705 shs£7.28 billion09/08/2025GBX 5,405GBX 5,495+1.67%GBX 5,505GBX 5,405286,901 shs£7.37 billion09/05/2025GBX 5,330GBX 5,405+1.41%GBX 5,446.67GBX 5,33518.55 million shs£7.24 billion09/04/2025GBX 5,340GBX 5,330-0.19%GBX 5,365GBX 5,310325,416 shs£7.14 billion09/03/2025GBX 5,385GBX 5,340-0.84%GBX 5,425GBX 5,305429,822 shs£7.16 billion09/02/2025GBX 5,470GBX 5,385-1.55%GBX 5,480GBX 5,383.23283,781 shs£7.22 billion09/01/2025GBX 5,418.25GBX 5,470+0.96%GBX 5,470GBX 5,390174,166 shs£7.24 billion08/29/2025GBX 5,423.61GBX 5,418.25-0.10%GBX 5,475GBX 5,400217,943 shs£7.26 billion08/28/2025GBX 5,419.17GBX 5,423.61+0.08%GBX 5,445GBX 5,390149,535 shs£7.23 billion08/27/2025GBX 5,435GBX 5,419.17-0.29%GBX 5,450GBX 5,390163,020 shs£7.23 billion08/26/2025GBX 5,430GBX 5,435+0.09%GBX 5,470GBX 5,365381,605 shs£7.25 billion08/25/2025GBX 5,430GBX 5,430GBX 5,450GBX 5,335132,062 shs£7.24 billion Related Companies Howden Joinery Group Stock Chart IG Group Stock Chart City of London Stock Chart Genus Stock Chart WH Smith Stock Chart Kerry Group Stock Chart Carclo Stock Chart Strip Tinning Stock Chart Bay Capital Stock Chart Petrel Resources Stock Chart Receive DPLM Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Diploma and its competitors with MarketBeat's FREE daily newsletter. 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