Proto Labs (PRLB) Stock Chart & Stock Price History $69.96 -1.17 (-1.64%) As of 02:48 PM Eastern This is a fair market value price provided by Massive. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Proto Labs Stock Price Performance The Proto Labs (PRLB) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 76.80%, with a year-to-date return of 38.18%. In the past month, the stock has increased 9.75%, reflecting recent market activity. As of the latest close, Proto Labs traded at $71.28 with a market cap of $1.70 billion and volume of 203,817 shares. Five years ago, the stock traded at $87.00, representing a 19.59% decrease over that period. At the time, it had a market cap of $2.41 billion and a volume of 968,676 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-2.69%1 Month Performance+9.75%3 Month Performance+6.93%Year-To-Date Performance+38.18%1 Year Performance+76.80%5 Year Performance-19.59% PRLB Stock Chart for Thursday, May, 21, 2026 PRLB Chart by TradingView Proto Labs 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 DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/20/2026$70.28$71.28+1.42%$72.64$70.45203,817 shs$1.70 billion05/19/2026$72.18$70.28-2.63%$71.64$69.37185,821 shs$1.67 billion05/18/2026$71.90$72.18+0.39%$73.00$71.42162,369 shs$1.72 billion05/15/2026$72.42$71.90-0.72%$72.73$69.87270,380 shs$1.71 billion05/14/2026$71.67$72.42+1.05%$73.11$71.14157,362 shs$1.72 billion05/13/2026$70.98$71.67+0.97%$72.53$70.37210,666 shs$1.71 billion05/12/2026$70.87$70.98+0.15%$71.55$67.06231,715 shs$1.69 billion05/11/2026$69.12$70.87+2.54%$71.37$68.05227,965 shs$1.69 billion05/08/2026$68.17$69.12+1.39%$69.42$67.58141,590 shs$1.62 billion05/07/2026$69.01$68.17-1.22%$70.00$67.33169,791 shs$1.62 billion Get the Latest News and Ratings for PRLB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Proto Labs and its competitors with MarketBeat's FREE daily newsletter. 05/06/2026$67.70$69.01+1.94%$69.18$67.07169,980 shs$1.64 billion05/05/2026N/A$67.70$68.49$64.39210,794 shs$1.61 billion04/30/2026$62.34$64.78+3.92%$65.17$61.99144,939 shs$1.54 billion04/29/2026$63.75$62.34-2.22%$63.53$61.78155,374 shs$1.48 billion04/28/2026$63.79$63.75-0.06%$63.98$62.72100,137 shs$1.52 billion04/27/2026$64.47$63.79-1.05%$65.00$63.50185,519 shs$1.52 billion04/24/2026$64.02$64.47+0.70%$64.88$63.11153,041 shs$1.53 billion04/23/2026$63.83$64.02+0.28%$65.30$63.33111,596 shs$1.52 billion04/22/2026$63.75$63.83+0.14%$64.68$63.0697,069 shs$1.52 billion04/21/2026$64.33$63.75-0.91%$65.60$63.66150,579 shs$1.52 billion04/20/2026$64.56$64.33-0.36%$64.53$63.7092,929 shs$1.53 billion Related Companies Enpro Stock Price Chart Middleby Stock Price Chart Mueller Water Products Stock Price Chart Kadant Stock Price Chart Standex International Stock Price Chart Kennametal Stock Price Chart Gorman-Rupp Stock Price Chart Albany International Stock Price Chart Tennant Stock Price Chart TriMas Stock Price Chart Receive PRLB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Proto Labs and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:PRLB) was last updated on 5/21/2026 by MarketBeat.com Staff. 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