Auction Technology Group (ATG) Stock Chart & Stock Price History GBX 328.50 -0.50 (-0.15%) As of 06:10 AM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsHeadlinesInsider TradesBuy This Stock Auction Technology Group Stock Price Performance The Auction Technology Group (ATG) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 20.94%, with a year-to-date return of -40.00%. In the past month, the stock has decreased 7.04%, reflecting recent market activity. As of the latest close, Auction Technology Group traded at GBX 329 with a market cap of £396.09 million and volume of 178,608 shares. Receive ATG Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Auction Technology Group and its competitors with MarketBeat's FREE daily newsletter. 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Read our full terms of service and privacy policy. 5 Day Performance-1.89%1 Month Performance-7.04%3 Month Performance-25.25%Year-To-Date Performance-40.00%1 Year Performance-20.94% ATG Stock Chart for Thursday, September, 25, 2025 ATG Chart by TradingView Auction Technology Group 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 Capitalization09/24/2025GBX 332GBX 329-0.90%GBX 347.50GBX 327.50178,608 shs£396.09 million09/23/2025GBX 332GBX 332GBX 341.50GBX 330.50273,434 shs£399.70 million09/22/2025GBX 336.37GBX 332-1.30%GBX 340.50GBX 330.50299,292 shs£399.70 million09/19/2025GBX 348GBX 336.37-3.34%GBX 353GBX 333.502.86 million shs£404.96 million09/18/2025GBX 328GBX 348+6.10%GBX 352GBX 329974,486 shs£418.96 million09/17/2025GBX 327GBX 328+0.31%GBX 330.50GBX 326461,705 shs£394.89 million09/16/2025GBX 330.50GBX 327-1.06%GBX 335GBX 321759,079 shs£393.68 million09/15/2025GBX 328GBX 330.50+0.76%GBX 340GBX 326.50246,809 shs£397.90 million09/12/2025GBX 329.50GBX 328-0.46%GBX 331.50GBX 324.50205,137 shs£394.89 million09/11/2025GBX 323GBX 329.50+2.01%GBX 335GBX 320323,555 shs£396.69 million Get the Latest News and Ratings for ATG and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Auction Technology Group and its competitors with MarketBeat's FREE daily newsletter. 09/10/2025GBX 329.50GBX 323-1.97%GBX 330.96GBX 320507,717 shs£388.87 million09/09/2025GBX 329.50GBX 329.50GBX 334GBX 324.50250,661 shs£396.69 million09/08/2025GBX 334GBX 329.50-1.35%GBX 336GBX 323.50238,986 shs£396.69 million09/05/2025GBX 333.50GBX 334+0.15%GBX 341.50GBX 318.50434,585 shs£402.11 million09/04/2025GBX 332.50GBX 333.50+0.30%GBX 336GBX 331249,611 shs£401.51 million09/03/2025GBX 319.50GBX 332.50+4.07%GBX 335.50GBX 316.50226,763 shs£400.30 million09/02/2025GBX 335.50GBX 319.50-4.77%GBX 337.50GBX 3151.10 million shs£384.65 million09/01/2025GBX 339GBX 335.50-1.03%GBX 342GBX 333135,348 shs£403.92 million08/29/2025GBX 340GBX 339-0.29%GBX 355GBX 336.50212,209 shs£418.78 million08/28/2025GBX 338.50GBX 340+0.44%GBX 340.50GBX 333.50339,086 shs£420.02 million08/27/2025GBX 346GBX 338.50-2.17%GBX 349GBX 337283,167 shs£418.17 million08/26/2025GBX 355GBX 346-2.54%GBX 355GBX 341346,860 shs£427.43 million08/25/2025GBX 355GBX 355GBX 355GBX 346.50287,594 shs£438.55 million Related Companies Kainos Group Stock Price Chart Trustpilot Group Stock Price Chart Learning Technologies Group Stock Price Chart Alfa Financial Software Stock Price Chart First Trust NYSE Arca Biotechnology UCITS ETF Class A USD Accumulation Stock Price Chart GB Group Stock Price Chart NCC Group Stock Price Chart Cerillion Stock Price Chart Big Technologies Stock Price Chart IDOX Stock Price Chart Receive ATG Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Auction Technology Group and its competitors with MarketBeat's FREE daily newsletter. 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