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Stocks to Compare Sections All Sections Selected Performance Chart Price & Volume MarketRank Analyst Ratings Sales & Book Value Profitability & Earnings Dividends Debt Ownership Miscellaneous Headlines About Compare NYSE:AIN NASDAQ:ERII NYSE:PRLB NYSE:TNC On This Page Performance ChartPrice & VolumeMarketRank™Analyst RatingsSales & Book ValueProfitability & EarningsDividendsDebtOwnershipMiscellaneousHeadlinesAbout Comparison Ideas Stock Ideas Comparative Price Performance Over Time1 day7 days30 days90 days365 daysCompare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeAINAlbany International$61.02+1.3%$56.29$41.15▼$73.00$1.71B1.18250,107 shs191,366 shsERIIEnergy Recovery$8.62-0.3%$10.12$8.14▼$18.32$445.87M1.041.48 million shs647,503 shsPRLBProto Labs$69.70-2.0%$62.59$36.15▼$73.11$1.69B1.36192,980 shs192,869 shsTNCTennant$82.26-0.8%$75.38$60.17▼$88.86$1.41B1.12295,672 shs206,259 shs7 Stocks That Could Be Bigger Than Tesla, Nvidia, and GoogleLooking for the next FAANG stock before everyone has heard about it? Click the link to see which stocks MarketBeat analysts think might become the next trillion dollar tech company.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAINAlbany International+1.57%-3.64%+7.62%+2.80%-7.32%ERIIEnergy Recovery-0.35%0.00%-16.88%-46.92%-31.80%PRLBProto Labs-2.20%-3.75%+9.35%+6.54%+76.15%TNCTennant-0.54%-0.59%+4.31%-1.39%+11.50%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeAINAlbany International$61.02+1.3%$56.29$41.15▼$73.00$1.71B1.18250,107 shs191,366 shsERIIEnergy Recovery$8.62-0.3%$10.12$8.14▼$18.32$445.87M1.041.48 million shs647,503 shsPRLBProto Labs$69.70-2.0%$62.59$36.15▼$73.11$1.69B1.36192,980 shs192,869 shsTNCTennant$82.26-0.8%$75.38$60.17▼$88.86$1.41B1.12295,672 shs206,259 shs7 Stocks That Could Be Bigger Than Tesla, Nvidia, and GoogleLooking for the next FAANG stock before everyone has heard about it? Click the link to see which stocks MarketBeat analysts think might become the next trillion dollar tech company.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAINAlbany International+1.57%-3.64%+7.62%+2.80%-7.32%ERIIEnergy Recovery-0.35%0.00%-16.88%-46.92%-31.80%PRLBProto Labs-2.20%-3.75%+9.35%+6.54%+76.15%TNCTennant-0.54%-0.59%+4.31%-1.39%+11.50%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAINAlbany International 1.67Reduce$61.500.78% UpsideERIIEnergy Recovery 2.00Hold$15.0074.01% UpsidePRLBProto Labs 3.00Buy$53.33-23.49% DownsideTNCTennant 2.25Hold$91.0010.62% UpsideCurrent Analyst Ratings BreakdownLatest ERII, AIN, PRLB, and TNC Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails5/15/2026TNCTennant Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeHold (C) ➝ Hold (C-)5/11/2026ERIIEnergy Recovery Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeHold (C-) ➝ Sell (D+)5/11/2026ERIIEnergy Recovery Freedom CapitalSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeStrong-Buy ➝ Hold5/11/2026PRLBProto Labs Zacks ResearchSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeHold ➝ Strong-Buy5/6/2026PRLBProto Labs Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeHold (C) ➝ Hold (C+)4/27/2026ERIIEnergy Recovery Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingHold (C-)4/27/2026TNCTennant Zacks ResearchSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeStrong Sell ➝ Hold4/24/2026TNCTennant Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeHold (C-) ➝ Hold (C)4/15/2026ERIIEnergy Recovery Northcoast ResearchSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeBuy ➝ Neutral4/10/2026PRLBProto Labs Zacks ResearchSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeStrong-Buy ➝ Hold3/27/2026AINAlbany International Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingSell (D)(Data available from 5/22/2023 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAINAlbany International$1.18B1.47$1.90 per share32.15$25.90 per share2.36ERIIEnergy Recovery$134.99M3.29$0.50 per share17.36$3.58 per share2.41PRLBProto Labs$533.13M3.11$2.28 per share30.59$28.71 per share2.43TNCTennant$1.20B1.16$8.92 per share9.22$31.28 per share2.63Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateAINAlbany International-$57.34M-$2.04N/A20.692.47-4.93%9.44%4.26%7/29/2026 (Estimated)ERIIEnergy Recovery$22.96M$0.3822.6820.52N/A15.07%10.89%9.55%8/5/2026 (Estimated)PRLBProto Labs$21.24M$1.0665.7642.76N/A4.71%4.15%3.66%7/30/2026 (Estimated)TNCTennant$43.80M$1.6649.5612.892.312.55%14.87%7.17%8/5/2026 (Estimated)Latest ERII, AIN, PRLB, and TNC EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails5/6/2026Q1 2026ERIIEnergy Recovery-$0.10-$0.23-$0.13-$0.23$8.37 million$9.71 million5/4/2026Q1 2026TNCTennant$0.4033$0.58+$0.1767$0.01$289.25 million$297.90 million5/1/2026Q1 2026PRLBProto Labs$0.40$0.54+$0.14$0.33$135.31 million$139.34 million4/30/2026Q1 2026AINAlbany International$0.55$0.60+$0.05$0.54$281.00 million$311.33 million2/25/2026Q4 2025ERIIEnergy Recovery$0.67$0.53-$0.14$0.50$82.59 million$66.59 million2/24/2026Q4 2025AINAlbany International$0.64$0.65+$0.01$0.44$292.32 million$321.21 millionCompare DividendsCompanyAnnual PayoutDividend Yield5-Year Annualized Dividend GrowthPayout RatioYears of Consecutive GrowthAINAlbany International$1.121.84%+7.20%N/A 7 YearsERIIEnergy RecoveryN/AN/AN/AN/AN/APRLBProto LabsN/AN/AN/AN/AN/ATNCTennant$1.241.51%+6.16%74.70%53 YearsLatest ERII, AIN, PRLB, and TNC DividendsAnnouncementCompanyPeriodAmountYieldEx-Dividend DateRecord DatePayable Date5/18/2026AINAlbany Internationalquarterly$0.281.83%6/5/20266/5/20267/7/20264/29/2026TNCTennantquarterly$0.311.53%5/29/20265/29/20266/15/20263/2/2026AINAlbany Internationalquarterly$0.282.29%3/20/20263/20/20264/7/2026(Data available from 1/1/2013 forward)Compare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAINAlbany International0.652.201.88ERIIEnergy RecoveryN/A9.287.50PRLBProto LabsN/A3.513.30TNCTennant0.672.121.41Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAINAlbany International97.37%ERIIEnergy Recovery83.58%PRLBProto Labs84.54%TNCTennant93.33%Insider OwnershipCompanyInsider OwnershipAINAlbany International0.58%ERIIEnergy Recovery3.20%PRLBProto Labs1.30%TNCTennant3.50%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAINAlbany International5,70028.40 million28.24 millionOptionableERIIEnergy Recovery25051.54 million49.90 millionOptionablePRLBProto Labs2,28023.79 million23.49 millionOptionableTNCTennant4,48417.04 million16.44 millionOptionableERII, AIN, PRLB, and TNC HeadlinesRecent News About These CompaniesHow Tennant’s New Compact Robot Scrubber And ERP Probe At TNC Have Changed Its Investment StoryMay 20 at 9:15 AM | finance.yahoo.comTNC Securities Investigation: Tennant 23% Stock Drop Triggers Securities Fraud Investigation Over ERP System Issues – Investors Urged to Contact BFA LawMay 20 at 6:23 AM | globenewswire.comTennant Company Balances ERP Pain With Robotics GainMay 19 at 11:51 PM | tipranks.comTNC Fraud Notice: Tennant is being Investigated for Securities Fraud after 23% Stock Drop -- Investors Reminded to Contact BFA LawMay 18, 2026 | globenewswire.com$TNC Shareholder News: Tennant Investigated for Securities Fraud Over Alleged Misrepresentations about its ERP System Issues – Investors Notified to Contact BFA LawMay 15, 2026 | globenewswire.comTennant (TNC) Forms 'Hammer Chart Pattern': Time for Bottom Fishing?May 14, 2026 | zacks.comTennant Inquiry Alert: Investors with Losses after Company Discloses ERP System Issues are Urged to Contact BFA Law about its Pending Securities Investigation - NYSE:TNCMay 13, 2026 | globenewswire.comTennant Minerals Raises Capital Through Large Share Placement to Sophisticated InvestorsMay 12, 2026 | tipranks.comTennant Minerals Seeks ASX Quotation for 266 Million New SharesMay 12, 2026 | tipranks.comVanguard Group Inc. Decreases Stock Holdings in Tennant Company $TNCMay 12, 2026 | marketbeat.comThe 5 most interesting analyst questions from Tennant’s Q1 earnings callMay 11, 2026 | msn.comTennant Company Introduces X2 ROVR SCRUB for Autonomous Cleaning in Small, High-Traffic SpacesMay 11, 2026 | businesswire.com$TNC Investigation Reminder: Tennant Company Investigation on behalf of Investors is Ongoing – Contact BFA Law if You Lost MoneyMay 11, 2026 | globenewswire.comWall Street Zen Upgrades Tennant (NYSE:TNC) to BuyMay 9, 2026 | marketbeat.comTNC Q1 deep dive: ERP recovery and robotics growth offset margin pressureMay 8, 2026 | msn.comSidoti Issues Optimistic Outlook for Tennant EarningsMay 8, 2026 | marketbeat.comBest Income Stocks to Buy for May 8thMay 8, 2026 | zacks.com$TNC Investor News: Tennant Company Stock Drops 23% Amid ERP System Issues Triggering Securities Fraud Investigation – Contact BFA Law if You Suffered LossesMay 8, 2026 | globenewswire.comTennant Company 2026 Q1 - Results - Earnings Call PresentationMay 7, 2026 | seekingalpha.comRiverwater Partners Sold Tennant Company (TNC) Due to ERP Implementation FailureMay 7, 2026 | finance.yahoo.comEquities Analysts Issue Forecasts for Tennant Q3 EarningsMay 7, 2026 | marketbeat.comNew MarketBeat Followers Over TimeMedia Sentiment Over Time Top HeadlinesView All HeadlinesApple Talks Just Changed Everything for IntelBy Sam Quirke | May 6, 20263 Energy Stocks to Buy and 2 to Avoid as AI Power Demand ExplodesBy Bridget Bennett | May 4, 2026IonQ Just Posted a Breakout Quarter—But 1 Problem RemainsBy Nathan Reiff | May 7, 20263 Overlooked Nuclear Fuel Supply Chain WinnersBy Nathan Reiff | April 26, 2026Shopify’s Valuation Crisis Creates Opportunity in 2026By Thomas Hughes | May 5, 2026ERII, AIN, PRLB, and TNC Company DescriptionsAlbany International NYSE:AIN$61.02 +0.76 (+1.27%) Closing price 05/21/2026 03:59 PM EasternExtended Trading$60.96 -0.06 (-0.10%) As of 04:00 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Albany International Corp., together with its subsidiaries, engages in the machine clothing and engineered composites businesses. The company operates in two segments, Machine Clothing (MC) and Albany Engineered Composites (AEC). The MC segment designs, manufactures, and markets paper machine clothing for use in the manufacturing of papers, paperboards, tissues, towels, pulps, nonwovens, building products, tannery, and textiles, as well as fiber cement and several other industrial applications. This segment offers paper machine clothing forming, pressing, and drying fabrics, as well as engineered processing belts; and engineered fabrics. The AEC segment 3D-woven and injected composite components for aircraft engines composite airframe and engine components for military and commercial aircraft. It operates in the United States, Switzerland, France, Brazil, China, Mexico, Germany, and internationally. The company was incorporated in 1895 and is headquartered in Rochester, New Hampshire.Energy Recovery NASDAQ:ERII$8.62 -0.03 (-0.35%) Closing price 05/21/2026 04:00 PM EasternExtended Trading$8.77 +0.15 (+1.77%) As of 04:18 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells energy efficiency technology solutions in the Americas, the Middle East, Africa, Asia, and Europe. The company operates through Water and Emerging Technologies segments. The company offers high and low pressure, and ultra pressure exchangers; AT and LPT hydraulic turbochargers; and high-pressure feed and circulation booster pumps for use in seawater and brackish desalination, and wastewater treatment. It also provides PX G1300, which reduces energy consumption and operating costs of carbon dioxide-based refrigeration systems; and spare parts, as well as repair, field, and commissioning services. It sells its products under the ERI, PX, Pressure Exchanger, PX Pressure Exchanger, Ultra PX, PX G, PX G1300, PX PowerTrain, AT, and Aquabold brands to original equipment manufacturers, supermarket chains, cold storage facilities, refrigeration system installers, and other industrial users; aftermarket customers consisting of desalination plant owners and operators; and project developers, end-users, and industry consultants, as well as engineering, procurement, and construction firms. Energy Recovery, Inc. was incorporated in 1992 and is headquartered in San Leandro, California.Proto Labs NYSE:PRLB$69.70 -1.43 (-2.00%) Closing price 05/21/2026 03:59 PM EasternExtended Trading$68.76 -0.94 (-1.35%) As of 04:08 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Proto Labs, Inc., together with its subsidiaries, operates as a digital manufacturer of custom parts in the United States and Europe. The company offers injection molding; computer numerical control machining; three-dimensional printing; and sheet metal fabrication products. It serves developers and engineers, who use 3D computer-aided design software to design products across a range of end-markets. Proto Labs, Inc. was incorporated in 1999 and is headquartered in Maple Plain, Minnesota.Tennant NYSE:TNC$82.26 -0.64 (-0.77%) Closing price 05/21/2026 03:59 PM EasternExtended Trading$82.20 -0.06 (-0.08%) As of 04:10 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.Tennant Company, together with its subsidiaries, designs, manufactures, and markets floor cleaning equipment in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company offers a suite of products, including floor maintenance and cleaning equipment, detergent-free and other sustainable cleaning technologies, aftermarket parts and consumables, equipment maintenance and repair services, and asset management solutions. It provides business solutions, such as financing, rental, and leasing programs, as well as machine-to-machine asset management solutions. The company offers its products under the Tennant, Nobles, Alfa Uma Empresa Tennant, IPC, Gaomei, and Rongen brands, as well as private-label brands. Its products are used in retail establishments and distribution centers; factories and warehouses; and public venues, such as arenas and stadiums, office buildings, schools and universities, hospitals and clinics, and other environments. The company markets its products to contract cleaners and businesses through direct sales and service organizations, as well as through a network of authorized distributors. Tennant Company was founded in 1870 and is headquartered in Eden Prairie, Minnesota. 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