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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 OTCMKTS:CRTG OTCMKTS:ELST OTCMKTS:GLEC NASDAQ:TMPO 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 VolumeCRTGThe Coretec Group$0.00+20.0%$0.00$0.00▼$0.04$205K1.58104,982 shs1,300 shsELSTElectronic Systems Technology$0.02$0.06$0.01▼$0.25$74K0.21,158 shsN/AGLECGlobal Ecology$0.00$0.00▼$0.00N/A1.715,016 shsN/ATMPOTempo Automation$0.01+60.0%$0.01$0.00▼$2.88$217K0.471.13 million shs101 shsA Guide To High-Short-Interest StocksMarketBeat's analysts have just released their top five short plays for September 2025. Learn which stocks have the most short interest and how to trade them. Enter your email address to see which companies made the list.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceCRTGThe Coretec Group0.00%0.00%-16.67%+25.00%-97.49%ELSTElectronic Systems Technology0.00%0.00%+15.38%-81.25%-92.80%GLECGlobal Ecology0.00%0.00%0.00%0.00%0.00%TMPOTempo Automation0.00%+60.00%+700.00%-60.00%+17.65%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationCRTGThe Coretec GroupN/AN/AN/AN/AN/AN/AN/AN/AELSTElectronic Systems TechnologyN/AN/AN/AN/AN/AN/AN/AN/AGLECGlobal EcologyN/AN/AN/AN/AN/AN/AN/AN/ATMPOTempo AutomationN/AN/AN/AN/AN/AN/AN/AN/ACompare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceCRTGThe Coretec Group 0.00N/AN/AN/AELSTElectronic Systems Technology 0.00N/AN/AN/AGLECGlobal Ecology 0.00N/AN/AN/ATMPOTempo Automation 0.00N/AN/AN/ACompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookCRTGThe Coretec GroupN/AN/AN/AN/AN/AN/AELSTElectronic Systems Technology$1.54M0.05N/AN/A$0.32 per share0.05GLECGlobal EcologyN/AN/AN/AN/AN/AN/ATMPOTempo Automation$10.93M0.02N/AN/A($0.99) per share-0.01Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateCRTGThe Coretec Group-$2.31MN/A0.00∞N/AN/AN/AN/AN/AELSTElectronic Systems Technology-$160K-$0.05N/A∞N/AN/AN/AN/AN/AGLECGlobal EcologyN/AN/A0.00N/AN/AN/AN/AN/AN/ATMPOTempo Automation-$144.85MN/A0.00N/AN/AN/AN/A-428.46%N/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthCRTGThe Coretec GroupN/AN/AN/AN/AN/AELSTElectronic Systems TechnologyN/AN/AN/AN/AN/AGLECGlobal EcologyN/AN/AN/AN/AN/ATMPOTempo AutomationN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioCRTGThe Coretec GroupN/AN/AN/AELSTElectronic Systems TechnologyN/AN/AN/AGLECGlobal EcologyN/AN/AN/ATMPOTempo AutomationN/A0.180.12Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipCRTGThe Coretec GroupN/AELSTElectronic Systems TechnologyN/AGLECGlobal EcologyN/ATMPOTempo Automation35.04%Insider OwnershipCompanyInsider OwnershipCRTGThe Coretec Group63.09%ELSTElectronic Systems Technology38.20%GLECGlobal EcologyN/ATMPOTempo Automation34.20%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableCRTGThe Coretec Group8341.74 million126.14 millionNot OptionableELSTElectronic Systems Technology94.95 million3.06 millionNot OptionableGLECGlobal Ecology4501.40 millionN/ANot OptionableTMPOTempo Automation327.14 million17.86 millionOptionableGLEC, CRTG, TMPO, and ELST HeadlinesRecent News About These CompaniesUnderstanding musical terms TempoMarch 2, 2024 | bbc.co.ukTempo Inti Media Tbk (TMPO)February 13, 2024 | investing.comTempo Automation Holdings announces commencement of Nasdaq delisting proceedingsOctober 27, 2023 | msn.comTempo Automation Holdings, Inc. Receives a Default Notice From its Senior Lender ConsortiumSeptember 21, 2023 | finance.yahoo.comTempo Automation Holdings Inc - Ordinary Shares - Class ASeptember 6, 2023 | money.usnews.comTempo Automation Holdings, Inc.: Tempo Automation Receives Nasdaq Notification of Noncompliance with Listing Rule 5250(c)August 23, 2023 | finanznachrichten.deTempo Automation Receives Nasdaq Notification of Noncompliance with Listing Rule 5250(c)(1)August 23, 2023 | finance.yahoo.com14 Hot Penny Stocks On the MoveAugust 13, 2023 | finance.yahoo.comSan Francisco tech firm gets rid of nearly all employees, cuts CEO salary by halfJuly 18, 2023 | sfgate.comTaking a look at what insiders are doing to gauge the Tempo Automation Holdings Inc. (TMPO)’s directionJune 23, 2023 | knoxdaily.comKRoth MKM Reiterates Buy on Tempo Automation Holdings, Maintains $5 Price TargetJune 23, 2023 | benzinga.comSimonelli Group explains how the Victoria Arduino Eagle Tempo improves performanceJune 21, 2023 | gcrmag.comGTempo Automation Enhances Customer Experience with Advanced Customer Portal TrialsMay 22, 2023 | finance.yahoo.comTempo Automation Holdings Inc (TMPO)May 18, 2023 | investing.comTempo Automation Reports 39% Revenue DropMay 16, 2023 | circuitsassembly.comCTempo Automation Holdings, Inc.: Tempo Automation Announces First Quarter Financial ResultsMay 16, 2023 | finanznachrichten.deDo Some of Your Favorite DAW Plug-Ins Lack Tempo Sync? These Useful Automation Tips Could Be the AnswerMay 11, 2023 | yahoo.com8-K: Tempo Automation Holdings, Inc.May 8, 2023 | marketwatch.comWhat's Going On With Tempo Automation Shares TodayApril 24, 2023 | msn.comWhy Is Tempo Automation (TMPO) Stock Up 114% Today?April 24, 2023 | markets.businessinsider.comGLEC, CRTG, TMPO, and ELST Company DescriptionsThe Coretec Group OTCMKTS:CRTG$0.0006 +0.00 (+20.00%) As of 12:26 PM EasternThe Coretec Group Inc. engages in the development of silicon anode active materials for lithium-ion batteries and cyclohexasilane for electric vehicles, cleantech, and tech applications. The company was founded in 2002 and is headquartered in Ann Arbor, Michigan.Electronic Systems Technology OTCMKTS:ELST$0.02 0.00 (0.00%) As of 08/22/2025Electronic Systems Technology, Inc., doing business as ESTeem Wireless Modems, designs, develops, manufactures, and markets industrial wireless products and accessories in the United States and internationally. The company's ESTeem industrial wireless products provide communication links between computer networks, network enabled devices, and mobile devices without cables. It also offers data radio products for process automation in commercial, industrial, and government arenas, as well as various accessories, such as antennas, power supplies, and cable assemblies. In addition, the company provides repair and upgrade services; and professional services, such as site survey testing, system start-up, and custom engineering. Its products are used in various applications, including water/wastewater, oil/gas, mining, and industrial automation. It markets its products through direct sales, sales representatives, resellers, and system integrators. The company was incorporated in 1984 and is based in Kennewick, Washington.Global Ecology OTCMKTS:GLECGlobal Ecology Corporation, through its subsidiary and joint ventures, engages in the production and sale of soil and water remediation technologies. Its products include Mobile PureWater System, a mobile water purification system for use in areas where safe and clean drinking water is scarce or affected by natural disasters; and IMS1000, an ionized mineral solution for treating reservoirs, lakes, and other large bodies of water, as well as for large HVAC systems, waste water systems, drilling water de-contamination, and various agricultural applications. The company's products also comprise soil remediation products, including natural fertilizers/soil additives and compost products for enhancing crop yield and turf growth. It has a strategic partnership with International Renewable Energy Organization. The company was formerly known as Homeland Security Network, Inc. and changed its name to Global Ecology Corporation in August 2009. Global Ecology Corporation was founded in 1986 and is based in Montclair, New Jersey.Tempo Automation NASDAQ:TMPO$0.0080 +0.00 (+60.00%) As of 08/22/2025Tempo Automation Holdings, Inc. manufactures and sells electronic products. The company produces printed circuit board assemblies (PCBAs) for prototype and on-demand production markets; and turnkey PCBA services. It serves space, semiconductor, aviation and defense, and medical device, as well as industrials and e-commerce industries. Tempo Automation Holdings, Inc. was founded in 2013 and is headquartered in San Francisco, California. On December 8, 2023, Tempo Automation Holdings, Inc., along with its affiliate, filed a voluntary petition for liquidation under Chapter 7 in the U.S. Bankruptcy Court for the District of Delaware. 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