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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:ARTR OTCMKTS:AXXDF OTCMKTS:DTOR OTCMKTS:NIOBF 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 VolumeARTRAirTrona International$0.00$0.00▼$0.00N/AN/AN/AN/AAXXDFAlderon Iron Ore$0.00$0.00▼$0.44N/AN/AN/AN/ADTOR(DTOR)$0.00$0.00▼$0.06N/AN/A31,471 shs29,600 shsNIOBFNioCorp Developments$5.87+2.3%$4.12$0.59▼$1.25N/AN/A225,679 shs9.96 million shs5G Stocks: The Path Forward is ProfitableEnter your email address and we'll send you MarketBeat's guide to investing in 5G and which 5G stocks show the most promise. Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceARTRAirTrona International0.00%0.00%0.00%0.00%0.00%AXXDFAlderon Iron Ore0.00%0.00%0.00%0.00%0.00%DTOR(DTOR)0.00%0.00%0.00%0.00%0.00%NIOBFNioCorp Developments0.00%+11.17%+40.43%+125.77%+249.40%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeARTRAirTrona International$0.00$0.00▼$0.00N/AN/AN/AN/AAXXDFAlderon Iron Ore$0.00$0.00▼$0.44N/AN/AN/AN/ADTOR(DTOR)$0.00$0.00▼$0.06N/AN/A31,471 shs29,600 shsNIOBFNioCorp Developments$5.87+2.3%$4.12$0.59▼$1.25N/AN/A225,679 shs9.96 million shs5G Stocks: The Path Forward is ProfitableEnter your email address and we'll send you MarketBeat's guide to investing in 5G and which 5G stocks show the most promise. Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceARTRAirTrona International0.00%0.00%0.00%0.00%0.00%AXXDFAlderon Iron Ore0.00%0.00%0.00%0.00%0.00%DTOR(DTOR)0.00%0.00%0.00%0.00%0.00%NIOBFNioCorp Developments0.00%+11.17%+40.43%+125.77%+249.40%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceARTRAirTrona International 0.00N/AN/AN/AAXXDFAlderon Iron Ore 0.00N/AN/AN/ADTOR(DTOR) 0.00N/AN/AN/ANIOBFNioCorp Developments 0.00N/AN/AN/ACompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookARTRAirTrona InternationalN/AN/AN/AN/AN/AN/AAXXDFAlderon Iron OreN/AN/AN/AN/AN/AN/ADTOR(DTOR)N/AN/AN/AN/AN/AN/ANIOBFNioCorp DevelopmentsN/AN/AN/AN/AN/AN/ACompare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateARTRAirTrona InternationalN/AN/A0.00N/AN/AN/AN/AN/AN/AAXXDFAlderon Iron OreN/AN/A0.00N/AN/AN/AN/AN/AN/ADTOR(DTOR)N/AN/A0.00N/AN/AN/AN/AN/AN/ANIOBFNioCorp DevelopmentsN/AN/A0.00∞N/AN/AN/AN/AN/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthARTRAirTrona InternationalN/AN/AN/AN/AN/AAXXDFAlderon Iron OreN/AN/AN/AN/AN/ADTOR(DTOR)N/AN/AN/AN/AN/ANIOBFNioCorp DevelopmentsN/AN/AN/AN/AN/ACompare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipARTRAirTrona InternationalN/AAXXDFAlderon Iron OreN/ADTOR(DTOR)N/ANIOBFNioCorp DevelopmentsN/AInsider OwnershipCompanyInsider OwnershipARTRAirTrona InternationalN/AAXXDFAlderon Iron Ore2.09%DTOR(DTOR)N/ANIOBFNioCorp DevelopmentsN/ACompare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableARTRAirTrona International2N/AN/ANot OptionableAXXDFAlderon Iron Ore150N/AN/ANot OptionableDTOR(DTOR)147,000N/AN/ANot OptionableNIOBFNioCorp Developments8N/AN/ANot OptionableNIOBF, DTOR, ARTR, and AXXDF HeadlinesRecent News About These CompaniesNioCorp Developments (NB) Is Up 11.2% After Completing $50M Direct Offering to Advance Elk Creek ProjectSeptember 20 at 3:39 PM | finance.yahoo.comNioCorp Developments Ltd.: NioCorp's Mark Smith to Appear on Bloomberg TV on Saturday, August 30, at 7 PM ETAugust 29, 2025 | finanznachrichten.deNioCorp Developments (NB) Raises $60.7M to Develop Elk Creek Critical Mineral ProjectAugust 8, 2025 | msn.comNioCorp Developments CEO details purchase of key land parcels in partnership with US DefenseAugust 6, 2025 | msn.comNioCorp officially gets $10 million grant as it hopes to build Nebraska rare earths mineAugust 6, 2025 | msn.comUS awards NioCorp unit up to $10 million for scandium project in NebraskaAugust 5, 2025 | msn.comNioCorp stock rises on Trump’s reported critical minerals price supportAugust 4, 2025 | in.investing.comNioCorp Developments Praises Nebraska Congressman Adrian Smith for his New Bipartisan Bill to Encourage Rare Earth and Scandium Production in the U.S.July 31, 2025 | juniorminingnetwork.comNioCorp Developments Ltd.: NioCorp To Accelerate Pre-Construction Activities at its Elk Creek Critical Minerals ProjectJuly 23, 2025 | finanznachrichten.deNioCorp Developments Announces Closing of $45.0 Million Public Offering of Common SharesJuly 19, 2025 | juniorminingnetwork.comNioCorp Shares Fall as Proposed Public Offering CommencesJuly 17, 2025 | marketwatch.comNioCorp Developments Ltd.: NioCorp to Participate in Aviation Week's 2025 Defense Conference in Washington, D.C. on May 13-14, 2025May 9, 2025 | finanznachrichten.deNioCorp Developments Ltd. Engages Engineering Firms to Update Elk Creek Project Feasibility StudyMay 4, 2025 | goldseiten.deNioCorp Developments Ltd.: NioCorp Announces Pricing of $20.0 Million Underwritten Public Offering of Common SharesApril 17, 2025 | finanznachrichten.deChina targets US defence supply chains with rare earth export curbs, NioCorp warnsApril 7, 2025 | miningweekly.comNioCorp: whole-government approach to critical minerals could benefit Elk Creek financingMarch 23, 2025 | rivercountry.newschannelnebraska.comRNioCorp Developments Ltd.: President Trump to Announce "Historic" Actions to Massively Expand Critical Minerals and Rare Earths Production in the U.S.March 5, 2025 | finanznachrichten.deNioCorp Developments: I Still Can't Make Their Sums Add UpFebruary 27, 2025 | seekingalpha.comEmail scam: Mining company NioCorp loses 500,000 dollarsFebruary 21, 2025 | it-daily.netIMining Company NioCorp Loses $500,000 in BEC HackFebruary 20, 2025 | securityweek.comSMedia Sentiment Over TimeNIOBF, DTOR, ARTR, and AXXDF Company DescriptionsAirTrona International OTCMKTS:ARTRAirTrona International Inc. provides various commercial and industrial Ozone generators for a range of commercial, industrial, and residential applications. Its products include ozone sanitization and ozone laundry systems. The company was founded in 2006 and is based in Stoney Creek, Canada.Alderon Iron Ore OTCMKTS:AXXDFAlderon Iron Ore Corp. engages in the acquisition, exploration, and development of mineral properties. Its principal asset is the Kami iron ore project that comprises 283 claim units covering an area of 7,075 hectares located in Western Labrador, Canada. The company was formerly known as Alderon Resource Corp. and changed its name to Alderon Iron Ore Corp. in September 2011. Alderon Iron Ore Corp. was incorporated in 1978 and is headquartered in Vancouver, Canada.(DTOR) OTCMKTS:DTORDel Toro Silver Corp. (Del Toro) is a mining and Exploration Company engaged in the acquisition, exploration and development gold properties in the western USA, with a focus California mining districts. The Company's wholly owned subsidiary is Minera Plata Del Toro S.A. de C.V. The Company has entered into a joint venture partnership terms agreement with Noble Mining Inc. with respect to the acquisition of a toll milling facility in the western United States. The Company owns 70% interest in Dos Naciones Property. Dos Naciones Property is located in central Sonora State, 140 kilometers north northeast of the city of Hermosillo and approximately 75 kilometers southwest of the Cananea porphyry copper mining district within the northern Mexico copper-molybdenum porphyry belt.NioCorp Developments OTCMKTS:NIOBF$5.87 +0.13 (+2.26%) As of 09/19/2025NioCorp Developments Ltd. operates as a development stage company. It engages in the acquisition, exploration, and development of mineral properties. The company is headquartered in Centennial, CO. 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