Diploma (DPLM) Stock Chart & Stock Price History GBX 5,273.20 -171.80 (-3.16%) As of 05:08 AM 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 24.49%, with a year-to-date return of 24.08%. In the past month, the stock has increased 7.53%, reflecting recent market activity. As of the latest close, Diploma traded at GBX 5,445 with a market cap of £7.26 billion and volume of 385,748 shares. Five years ago, the stock traded at GBX 1,961, representing a 168.90% increase over that period. At the time, it had a market cap of £2.22 billion and a volume of 102,778 shares. 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Email Address 5 Day Performance-2.54%1 Month Performance+7.53%3 Month Performance+26.03%Year-To-Date Performance+24.08%1 Year Performance+24.49%5 Year Performance+168.90% DPLM Stock Chart for Thursday, August, 14, 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 Capitalization08/13/2025GBX 5,445GBX 5,445GBX 5,480.44GBX 5,425385,748 shs£7.26 billion08/12/2025GBX 5,375GBX 5,445+1.30%GBX 5,445GBX 5,370281,810 shs£7.26 billion08/11/2025GBX 5,410.50GBX 5,375-0.66%GBX 5,420GBX 5,360.15256,098 shs£7.17 billion08/08/2025GBX 5,418.71GBX 5,410.50-0.15%GBX 5,435GBX 5,375158,291 shs£7.22 billion08/07/2025GBX 5,410GBX 5,418.71+0.16%GBX 5,450GBX 5,390198,031 shs£7.23 billion08/06/2025GBX 5,424.47GBX 5,410-0.27%GBX 5,465GBX 5,350197,028 shs£7.22 billion08/05/2025GBX 5,390GBX 5,424.47+0.64%GBX 5,460GBX 5,405256,339 shs£7.24 billion08/04/2025GBX 5,350GBX 5,390+0.75%GBX 5,400GBX 5,346.52661,970 shs£7.19 billion08/01/2025GBX 5,380GBX 5,350-0.56%GBX 5,375GBX 5,309.80188,758 shs£7.14 billion07/31/2025GBX 5,335GBX 5,380+0.84%GBX 5,416.81GBX 5,340237,626 shs£7.18 billion Get the Latest News and Ratings for DPLM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Diploma and its competitors with MarketBeat's FREE daily newsletter. 07/30/2025GBX 5,289.68GBX 5,335+0.86%GBX 5,345GBX 5,265279,487 shs£7.12 billion07/29/2025GBX 5,235GBX 5,289.68+1.04%GBX 5,320GBX 5,250264,560 shs£7.06 billion07/28/2025GBX 5,245GBX 5,235-0.19%GBX 5,355GBX 5,235256,965 shs£6.98 billion07/25/2025GBX 5,252.32GBX 5,245-0.14%GBX 5,295GBX 5,220234,556 shs£7.00 billion07/24/2025GBX 5,100GBX 5,252.32+2.99%GBX 5,277.50GBX 5,115246,260 shs£7.01 billion07/23/2025GBX 5,070GBX 5,100+0.59%GBX 5,135GBX 5,090140,295 shs£6.80 billion07/22/2025GBX 5,171.72GBX 5,070-1.97%GBX 5,170GBX 5,045234,895 shs£6.76 billion07/21/2025GBX 5,200GBX 5,171.72-0.54%GBX 5,235GBX 5,160147,558 shs£6.90 billion07/18/2025GBX 5,220GBX 5,200-0.38%GBX 5,274.85GBX 5,175190,932 shs£6.94 billion07/17/2025GBX 4,933.44GBX 5,220+5.81%GBX 5,583.91GBX 5,205458,634 shs£6.96 billion07/16/2025GBX 4,928GBX 4,933.44+0.11%GBX 4,972GBX 4,89424.69 million shs£6.58 billion07/15/2025GBX 4,904GBX 4,928+0.49%GBX 5,005GBX 4,912566,182 shs£6.57 billion07/14/2025GBX 4,908.75GBX 4,904-0.10%GBX 4,912GBX 4,842270,009 shs£6.54 billion Related Companies Kerry Group Stock Chart Howden Joinery Group Stock Chart IG Group Stock Chart City of London Stock Chart Genus Stock Chart WH Smith Stock Chart Carclo Stock Chart Aukett Swanke Group Stock Chart Strip Tinning Stock Chart Bay Capital 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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