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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 NASDAQ:GENCNASDAQ:PPIHNASDAQ:RRNASDAQ:SOTK 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 VolumeGENCGencor Industries$14.07-3.9%$13.20$10.80▼$24.88$206.24M0.5229,139 shs36,921 shsPPIHPerma-Pipe International$20.69-2.4%$14.08$7.72▼$23.17$165.11M0.2733,882 shs43,838 shsRRRichtech Robotics$1.79-4.3%$2.15$0.30▼$5.20$204.96M-4.4112.32 million shs8.99 million shsSOTKSono-Tek$3.80+0.5%$3.83$3.50▼$6.05$59.77M-0.0511,578 shs4,245 shsThe Next 7 Blockbuster Stocks for Growth InvestorsWondering what the next stocks will be that hit it big, with solid fundamentals? Enter your email address to see which stocks MarketBeat analysts could become the next blockbuster growth stocks.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceGENCGencor Industries0.00%+0.57%+4.38%+6.19%-23.70%PPIHPerma-Pipe International0.00%+19.39%+58.91%+47.89%+127.86%RRRichtech Robotics0.00%-4.79%-18.64%-31.15%+52.99%SOTKSono-Tek0.00%+2.98%-0.26%+3.26%-10.59%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationGENCGencor Industries0.7516 of 5 stars0.03.00.00.00.61.71.3PPIHPerma-Pipe International1.3897 of 5 stars0.05.00.00.02.50.01.3RRRichtech Robotics2.3982 of 5 stars3.52.00.00.02.82.50.0SOTKSono-Tek2.8086 of 5 stars3.05.00.00.02.00.81.3Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceGENCGencor Industries 0.00N/AN/AN/APPIHPerma-Pipe International 0.00N/AN/AN/ARRRichtech Robotics 3.00Buy$3.2581.56% UpsideSOTKSono-Tek 2.00Hold$7.5097.37% UpsideCurrent Analyst Ratings BreakdownLatest SOTK, RR, GENC, and PPIH Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails5/29/2025SOTKSono-TekNorthland CapmkSubscribe to MarketBeat All Access for the recommendation accuracy ratingDowngradeStrong-Buy ➝ Hold5/29/2025SOTKSono-TekNorthland SecuritiesSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingOutperform ➝ Market Perform4/11/2025RRRichtech RoboticsHC WainwrightSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageBuy$3.50(Data available from 6/23/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookGENCGencor Industries$113.12M1.82$1.30 per share10.85$12.39 per share1.14PPIHPerma-Pipe International$158.38M1.04$1.63 per share12.66$9.04 per share2.29RRRichtech Robotics$4.24M48.34N/AN/A$0.45 per share3.98SOTKSono-Tek$20.50M2.92$0.13 per share30.32$1.13 per share3.36Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateGENCGencor Industries$14.67M$1.1012.79∞N/A14.33%8.60%8.01%N/APPIHPerma-Pipe International$8.98M$1.5413.44∞N/A7.31%17.84%7.81%9/9/2025 (Estimated)RRRichtech Robotics-$8.14M-$0.15N/A∞N/A-281.42%-31.58%-30.03%N/ASOTKSono-Tek$1.27M$0.0847.5147.50N/A6.21%7.40%5.41%7/10/2025 (Estimated)Latest SOTK, RR, GENC, and PPIH EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails7/10/2025Q1 2026SOTKSono-Tek$0.02N/AN/AN/A$5.24 millionN/A6/13/2025Q1 2026PPIHPerma-Pipe InternationalN/A$0.61N/A$0.61N/A$46.75 million5/28/2025Q4 2025SOTKSono-Tek$0.01$0.08+$0.07$0.02$5.12 million$5.12 million5/14/2025Q1 2025RRRichtech Robotics-$0.02-$0.04-$0.02-$0.04$1.91 million$1.17 million5/1/2025Q4 2025PPIHPerma-Pipe InternationalN/A$0.27N/A$0.22N/A$44.99 millionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthGENCGencor IndustriesN/AN/AN/AN/AN/APPIHPerma-Pipe InternationalN/AN/AN/AN/AN/ARRRichtech RoboticsN/AN/AN/AN/AN/ASOTKSono-TekN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioGENCGencor IndustriesN/A26.5517.52PPIHPerma-Pipe International0.051.951.71RRRichtech Robotics0.0175.7473.23SOTKSono-TekN/A3.462.65Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipGENCGencor IndustriesN/APPIHPerma-Pipe International28.43%RRRichtech Robotics0.01%SOTKSono-Tek47.89%Insider OwnershipCompanyInsider OwnershipGENCGencor Industries30.45%PPIHPerma-Pipe International6.00%RRRichtech Robotics41.30%SOTKSono-Tek5.88%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableGENCGencor Industries37014.66 million10.20 millionOptionablePPIHPerma-Pipe International6107.98 million7.50 millionOptionableRRRichtech Robotics51114.50 million67.21 millionN/ASOTKSono-Tek8015.73 million14.80 millionNot OptionableSOTK, RR, GENC, and PPIH HeadlinesRecent News About These CompaniesSono-Tek Co. (NASDAQ:SOTK) Short Interest UpdateJune 16, 2025 | marketbeat.comSono-Tek (NASDAQ:SOTK) Could Be Struggling To Allocate CapitalJune 15, 2025 | finance.yahoo.comSono-Tek (NASDAQ:SOTK) Stock Price Passes Below 200 Day Moving Average - Here's WhyJune 12, 2025 | marketbeat.comShort Interest in Sono-Tek Co. (NASDAQ:SOTK) Declines By 45.6%May 31, 2025 | marketbeat.comWhat is Northland Capmk's Estimate for Sono-Tek Q1 Earnings?May 31, 2025 | marketbeat.comSono-Tek (NASDAQ:SOTK) Downgraded to "Hold" Rating by Northland CapmkMay 31, 2025 | marketbeat.comSono-Tek downgraded at Northland on FY26 uncertaintyMay 30, 2025 | finance.yahoo.comSono-Tek (NASDAQ:SOTK) Receives "Market Perform" Rating from Northland SecuritiesMay 30, 2025 | marketbeat.comSono-Tek (NASDAQ:SOTK) Posts Quarterly Earnings ResultsMay 30, 2025 | marketbeat.comNorthland Capital Markets Downgrades Sono-Tek (SOTK)May 30, 2025 | msn.comEarnings call transcript: Sono-Tek Corp’s Q2 2025 results meet expectationsMay 29, 2025 | uk.investing.comSono-Tek Corporation (SOTK) Q4 2025 Earnings Call TranscriptMay 28, 2025 | seekingalpha.comSono-Tek Corporation (SOTK) Beats Q4 Earnings and Revenue EstimatesMay 28, 2025 | zacks.comSono-Tek Reports Strong Fiscal Year 2025 Financial ResultsMay 28, 2025 | prismmediawire.comSono-Tek Reports Strong Fiscal Year 2025 Financial ResultsMay 28, 2025 | globenewswire.comSono-Tek's Earnings: A PreviewMay 27, 2025 | benzinga.comSono-Tek (NASDAQ:SOTK) Shares Cross Below Two Hundred Day Moving Average - Should You Sell?May 25, 2025 | marketbeat.comSono-Tek Announces Fiscal Fourth Quarter and Full Year 2025 Earnings Conference CallMay 21, 2025 | prismmediawire.comSono-Tek Announces Fiscal Fourth Quarter and Full Year 2025 Earnings Conference CallMay 21, 2025 | globenewswire.comWhy Sono-Tek Corporation’s (SOTK) Stock Is Down 5.58%May 14, 2025 | aaii.comSono-Tek to Present at the Planet MicroCap Showcase: VEGAS in partnership with MicroCapClubApril 9, 2025 | prismmediawire.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeTop HeadlinesView All Headlines3 Defense Stocks That Will Profit From a Golden DomeBy Chris Markoch | May 30, 2025View 3 Defense Stocks That Will Profit From a Golden DomeIPO Momentum Returns: 3 Stocks Rising After CoreWeave’s SurgeBy Dan Schmidt | June 20, 2025View IPO Momentum Returns: 3 Stocks Rising After CoreWeave’s Surge3 Companies to Buy on This Early Cycle RecoveryBy Gabriel Osorio-Mazilli | June 3, 2025View 3 Companies to Buy on This Early Cycle Recovery3 Stocks Set to Double—And There's Still Time to BuyBy Nathan Reiff | June 12, 2025View 3 Stocks Set to Double—And There's Still Time to BuyThese 3 Dividend Stocks Combine Strong Yields With UpsideBy Chris Markoch | June 20, 2025View These 3 Dividend Stocks Combine Strong Yields With UpsideSOTK, RR, GENC, and PPIH Company DescriptionsGencor Industries NASDAQ:GENC$14.07 -0.57 (-3.89%) Closing price 06/20/2025 04:00 PM EasternExtended Trading$14.12 +0.05 (+0.39%) As of 06/20/2025 04:04 PM 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 Polygon.io. Learn more.Gencor Industries, Inc., together with its subsidiaries, designs, manufactures, and sells heavy machinery used in the production of highway construction materials and environmental control equipment. It offers hot-mix asphalt plants to produce asphalt paving materials; related asphalt plant equipment, including hot-mix storage silos, fabric filtration systems, cold feed bins, and other plant components; and a range of mobile batch plants. The company also provides combustion systems that transform solid, liquid, or gaseous fuels into usable energy, or burn multiple fuels in asphalt and aggregate drying industries; and combustion systems for rotary dryers, kilns, fume and liquid incinerators, and fuel heaters, as well as industrial incinerators. In addition, it offers thermal fluid heat transfer systems that transfer heat for storage, heating, and pumping viscous materials, such as asphalt, chemicals, heavy oils, etc. in various industrial and petrochemical applications; specialty storage tanks for various industrial uses; and asphalt pavers under the Blaw-Knox brand. The company sells its products primarily to the highway construction industry through its sales representatives, and independent dealers and agents worldwide. The company was formerly known as Mechtron International Corporation and changed its name to Gencor Industries, Inc. in 1987. Gencor Industries, Inc. was founded in 1894 and is based in Orlando, Florida.Perma-Pipe International NASDAQ:PPIH$20.69 -0.51 (-2.41%) Closing price 06/20/2025 04:00 PM EasternExtended Trading$20.74 +0.05 (+0.27%) As of 06/20/2025 04:09 PM 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 Polygon.io. Learn more.Perma-Pipe International Holdings, Inc., together with its subsidiaries, engineers, designs, manufactures, and sells specialty piping and leak detection systems. It offers insulated and jacketed district heating and cooling piping systems for energy distribution from central energy plants to various locations; and primary and secondary containment piping systems for transporting chemicals, hazardous fluids, and petroleum products, as well as engages in the coating and insulation of oil and gas gathering and transmission pipelines. The company also offers liquid and powder based anti-corrosion coatings for external and internal surfaces of steel pipe, including shapes like bends, reducers, tees, and other spools/fittings that is used in pipelines for the transportation of oil and gas products and potable water. It has operations in the United States, Canada, the Middle East, North Africa, Europe, India, and internationally. The company was formerly known as MFRI, Inc. and changed its name to Perma-Pipe International Holdings, Inc. in March 2017. Perma-Pipe International Holdings, Inc. was incorporated in 1993 and is headquartered in Spring, Texas.Richtech Robotics NASDAQ:RR$1.79 -0.08 (-4.28%) Closing price 06/20/2025 04:00 PM EasternExtended Trading$1.80 +0.00 (+0.28%) As of 06/20/2025 07:59 PM 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 Polygon.io. Learn more.Richtech Robotics Inc. develops, manufactures, deploys, and sells robotic solutions for automation in the service industry. The company offers indoor transport and delivery, sanitation, and food and beverage automation solutions, such as ADAM and ARM worker robots; delivery robots, including Matradee, Matradee X, Matradee L, Richie, and Robbie; and cleaning robots comprising DUST-E SX, and DUST-E MX, as well as accessories, such as bus tubs, cup holders, magnetic tray cases, smartwatches, table location systems, and tray covers. It primarily serves restaurants, hotels, casinos, senior living centers, factories, and retail centers, as well as hospitals, and movie theaters. The company was formerly known as Richtech Creative Displays LLC and changed its name to Richtech Robotics Inc. on June 22, 2022. Richtech Robotics Inc. was incorporated in 2016 and is headquartered in Las Vegas, Nevada.Sono-Tek NASDAQ:SOTK$3.80 +0.02 (+0.53%) Closing price 06/20/2025 04:00 PM EasternExtended Trading$3.77 -0.03 (-0.79%) As of 06/20/2025 04:04 PM 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 Polygon.io. Learn more.Sono-Tek Corporation designs and manufactures ultrasonic coating systems for applying on parts and components for the microelectronics/electronics, alternative energy, medical, industrial, and research and development/other markets worldwide. The company also designs and manufactures custom-engineered ultrasonic coating systems; and provides nozzles and generators for manufacturers' equipment. Its products include integrated multi-axis coating systems, integrated coating systems, fluxing systems, OEM systems, and other related systems. In addition, the company provides surface coating solutions and application consulting services. It markets and distributes its products through direct sales personnel, select independent distributors, and sales representatives. The company was incorporated in 1975 and is based in Milton, New York. 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