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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:PGXPFOTCMKTS:QTMMOTCMKTS:QTRRFNYSEAMERICAN:SMTS 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 VolumePGXPFPelangio Exploration$0.07$0.07$0.01▼$0.08$13.55M-0.0134,260 shsN/AQTMMQuantum Materials$0.04$0.04$0.01▼$0.20$28.18M2.991.60 million shsN/AQTRRFQuaterra Resources$0.14-0.7%$0.11$0.04▼$0.25$40.76M1.29218,964 shs102,782 shsSMTSSierra Metals$0.00$0.16▼$1.84$32.70M1.05413,899 shs625,400 shsA Guide To High-Short-Interest StocksMarketBeat's analysts have just released their top five short plays for July 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 PerformancePGXPFPelangio Exploration0.00%-2.26%+9.66%+27.25%+288.93%QTMMQuantum Materials0.00%0.00%0.00%0.00%0.00%QTRRFQuaterra Resources-0.71%+17.80%+21.40%+67.47%+127.50%SMTSSierra Metals0.00%0.00%0.00%0.00%0.00%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationPGXPFPelangio ExplorationN/AN/AN/AN/AN/AN/AN/AN/AQTMMQuantum MaterialsN/AN/AN/AN/AN/AN/AN/AN/AQTRRFQuaterra ResourcesN/AN/AN/AN/AN/AN/AN/AN/ASMTSSierra MetalsN/AN/AN/AN/AN/AN/AN/AN/ACompare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PricePGXPFPelangio Exploration 0.00N/AN/AN/AQTMMQuantum Materials 0.00N/AN/AN/AQTRRFQuaterra Resources 0.00N/AN/AN/ASMTSSierra Metals 0.00N/AN/AN/ACompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookPGXPFPelangio ExplorationN/AN/AN/AN/AN/AN/AQTMMQuantum MaterialsN/AN/AN/AN/AN/AN/AQTRRFQuaterra ResourcesN/AN/AN/AN/A$0.13 per shareN/ASMTSSierra Metals$272.01M0.00N/A0.51$1.25 per share0.00Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DatePGXPFPelangio Exploration-$550KN/A0.00∞N/AN/AN/A-274.90%N/AQTMMQuantum Materials-$8.96MN/A0.00∞N/AN/AN/AN/AN/AQTRRFQuaterra Resources-$980KN/A0.00∞N/AN/A-6.27%-6.15%N/ASMTSSierra Metals-$27.36M-$0.33N/AN/AN/A-23.65%-1.56%-0.83%N/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthPGXPFPelangio ExplorationN/AN/AN/AN/AN/AQTMMQuantum MaterialsN/AN/AN/AN/AN/AQTRRFQuaterra ResourcesN/AN/AN/AN/AN/ASMTSSierra Metals$0.0315.04%N/AN/A N/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioPGXPFPelangio ExplorationN/AN/AN/AQTMMQuantum MaterialsN/AN/AN/AQTRRFQuaterra ResourcesN/A1.031.03SMTSSierra Metals0.290.930.64Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipPGXPFPelangio ExplorationN/AQTMMQuantum Materials0.08%QTRRFQuaterra ResourcesN/ASMTSSierra Metals54.24%Insider OwnershipCompanyInsider OwnershipPGXPFPelangio ExplorationN/AQTMMQuantum Materials12.78%QTRRFQuaterra ResourcesN/ASMTSSierra MetalsN/ACompare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionablePGXPFPelangio ExplorationN/A200.91 millionN/ANot OptionableQTMMQuantum Materials4704.57 millionN/ANot OptionableQTRRFQuaterra ResourcesN/A293.27 millionN/ANot OptionableSMTSSierra Metals1,440163.90 millionN/ANot OptionablePGXPF, SMTS, QTMM, and QTRRF HeadlinesRecent News About These CompaniesSierra Metals Reminds Shareholders of Impending Deadline to Tender Shares to Alpayana OfferMay 21, 2025 | financialpost.comFArias Resource Capital Fund II L.P. and Arias Resource Capital Fund II (Mexico) L.P. Sale of Common Shares of Sierra Metals Inc.May 15, 2025 | financialpost.comFXIB ASSET MANAGEMENT CONFIRMS CONTROL OVER SECURITIES OF SIERRA METALS INC.May 8, 2025 | finance.yahoo.comSierra Metals Responds to Alpayana’s Increased Offer; Makes No Recommendation to ShareholdersMay 6, 2025 | financialpost.comFSierra Metals Acknowledges Receipt of Amended BidMay 2, 2025 | financialpost.comFSierra Metals Subsidiary in Peru, Sociedad Minera Corona Reports Q1 2025 Financial ResultsApril 30, 2025 | financialpost.comFSierra Metals Shares Jump After Takeover Deal With AlpayanaApril 23, 2025 | marketwatch.comSierra Metals agrees to Alpayana's C$1.15/share takeover offerApril 23, 2025 | msn.comSierra Metals and Alpayana Reach Agreement in Principle for CDN $1.15 All-Cash Supported Take-Over Bid and Extends OfferApril 23, 2025 | financialpost.comFSierra Metals Reports First Quarter 2025 Production ResultsApril 16, 2025 | juniorminingnetwork.comSierra Metals: The Hostile Takeover AttemptApril 6, 2025 | thedeepdive.caTAlpayana ups Sierra bidApril 4, 2025 | mining-journal.comMSierra Metals Responds to Alpayana’s Revised Takeover BidApril 3, 2025 | tipranks.comSierra Metals Subsidiary in Peru, Sociedad Minera Corona Reports Q4 2024 Financial ResultsFebruary 18, 2025 | financialpost.comFSierra Metals Subsidiary in Peru, Sociedad Minera Corona Reports Q4 2024 Financial ResultsFebruary 18, 2025 | finance.yahoo.comSierra Metals Provides Update on Shareholder Rights PlanJanuary 22, 2025 | financialpost.comFSierra Metals Provides Update on Shareholder Rights PlanJanuary 22, 2025 | financialpost.comFSierra Metals rejects Alpayana's hostile C$0.85/share takeover offerJanuary 14, 2025 | msn.comSierra Metals Adopts Poison Pill Plan as Peruvian Company CirclesDecember 30, 2024 | marketwatch.comSierra Metals Adopts Shareholder Rights PlanDecember 30, 2024 | financialpost.comFNew MarketBeat Followers Over TimeMedia Sentiment Over TimePGXPF, SMTS, QTMM, and QTRRF Company DescriptionsPelangio Exploration OTCMKTS:PGXPF$0.07 0.00 (0.00%) As of 07/3/2025Pelangio Exploration Inc., a mineral exploration company, engages in acquiring, exploring, and developing mineral properties. It holds interests in various gold properties in Ghana and Canada. The company was incorporated in 2008 and is headquartered in Toronto, Canada.Quantum Materials OTCMKTS:QTMM$0.04 0.00 (0.00%) As of 07/27/2021Quantum Materials Corp. engages in the design, development, production and supply of nanomaterials, including quantum dots, tetrapod quantum dots, and other nanoparticles for a range of applications in televisions, displays and other optoelectronics, photovoltaics, solid state lighting, life sciences, security ink, battery, and sensor sectors of the market. The company was founded by Stephen Squires on January 9, 2007 and is headquartered in San Marcos, TX.Quaterra Resources OTCMKTS:QTRRF$0.14 0.00 (-0.71%) As of 07/3/2025Quaterra Resources, Inc. engages in the acquisition, exploration, and development of mineral properties. It holds interest in the Groundhog and Quaterra's Yerington Copper projects. The company was founded on May 11, 1993 and is headquartered in Vancouver, Canada.Sierra Metals NYSEAMERICAN:SMTSSierra Metals Inc., together with its subsidiaries, focuses on the production, exploration, and development of precious and base metals in Peru and Mexico. It primarily focuses on exploration of silver, copper, lead, zinc, and gold deposits. The company's flagship property is the 81.84% owned polymetallic Yauricocha Mine covering an area of 18,778 hectares located in the Yauyos province in Peru. It also holds 100% interest in the Bolivar mine, comprising of 12 mining concessions covering an area 15,217 hectares; and Cusi Mines that comprises of 73 concessions covering 11,977 hectares in Mexico. The company was formerly known as Dia Bras Exploration Inc. and changed its name to Sierra Metals Inc. in December 2012. Sierra Metals Inc. was incorporated in 1996 and is headquartered in Toronto, Canada. 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