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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:ACFN NASDAQ:GFAI NASDAQ:LUNA NASDAQ:SJ 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 VolumeACFNAcorn Energy$19.00-1.3%$18.84$12.42▼$33.00$48.52M0.2924,927 shs4,797 shsGFAIGuardforce AI$0.52-1.3%$0.52$0.38▼$1.50$12.74M2.581.66 million shs81,947 shsLUNALuna Innovations$1.05+4.0%$1.23$0.32▼$1.75$35.66M1.8745,475 shs3,002 shsSJScienjoy$1.13+1.4%$1.27$0.45▼$1.63$44.48M0.861,828 shs1,732 shsElon Musk's Next MoveExplore Elon Musk’s boldest ventures yet—from AI and autonomy to space colonization—and find out how investors can ride the next wave of innovation.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceACFNAcorn Energy-0.72%+9.07%+11.92%+16.81%+1,924,999,900.00%GFAIGuardforce AI-8.60%-5.63%+26.13%+19.75%-47.52%LUNALuna Innovations-8.18%-3.81%-8.18%-32.21%+152.50%SJScienjoy-1.33%+0.91%-16.54%-18.38%+20.73%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeACFNAcorn Energy$19.00-1.3%$18.84$12.42▼$33.00$48.52M0.2924,927 shs4,797 shsGFAIGuardforce AI$0.52-1.3%$0.52$0.38▼$1.50$12.74M2.581.66 million shs81,947 shsLUNALuna Innovations$1.05+4.0%$1.23$0.32▼$1.75$35.66M1.8745,475 shs3,002 shsSJScienjoy$1.13+1.4%$1.27$0.45▼$1.63$44.48M0.861,828 shs1,732 shsElon Musk's Next MoveExplore Elon Musk’s boldest ventures yet—from AI and autonomy to space colonization—and find out how investors can ride the next wave of innovation.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceACFNAcorn Energy-0.72%+9.07%+11.92%+16.81%+1,924,999,900.00%GFAIGuardforce AI-8.60%-5.63%+26.13%+19.75%-47.52%LUNALuna Innovations-8.18%-3.81%-8.18%-32.21%+152.50%SJScienjoy-1.33%+0.91%-16.54%-18.38%+20.73%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceACFNAcorn Energy 2.00HoldN/AN/AGFAIGuardforce AI 1.00SellN/AN/ALUNALuna Innovations 0.00N/AN/AN/ASJScienjoy 1.00SellN/AN/ACurrent Analyst Ratings BreakdownLatest GFAI, ACFN, SJ, and LUNA Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails4/29/2026SJScienjoy Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeSell (D+) ➝ Sell (D-)4/24/2026GFAIGuardforce AI Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeSell (E+) ➝ Sell (D-)(Data available from 5/6/2023 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookACFNAcorn Energy$11.48M4.15$0.85 per share22.30$3.32 per share5.72GFAIGuardforce AI$35.23M0.36$0.09 per share5.66$1.40 per share0.37LUNALuna Innovations$116.61M0.31$0.35 per share3.03N/A∞SJScienjoy$177.55M0.25N/AN/A$2.15 per share0.52Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateACFNAcorn Energy$2.51M$0.9919.53N/AN/A21.87%25.09%14.51%5/6/2026 (Estimated)GFAIGuardforce AI-$6.66MN/AN/AN/AN/AN/AN/AN/AN/ALUNALuna Innovations$9.28M$0.0335.00N/AN/AN/AN/AN/A5/13/2026 (Estimated)SJScienjoy-$83.95M-$2.01N/AN/AN/A-47.40%-57.42%-48.64%N/ALatest GFAI, ACFN, SJ, and LUNA EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails4/20/2026Q4 2025SJScienjoyN/A-$2.08N/A-$2.08N/A$42.73 millionCompare DividendsCompanyAnnual PayoutDividend Yield5-Year Annualized Dividend GrowthPayout RatioYears of Consecutive GrowthACFNAcorn EnergyN/AN/AN/AN/AN/AGFAIGuardforce AIN/AN/AN/AN/AN/ALUNALuna InnovationsN/AN/AN/AN/AN/ASJScienjoyN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioACFNAcorn EnergyN/A1.831.50GFAIGuardforce AI0.065.325.31LUNALuna InnovationsN/AN/AN/ASJScienjoyN/A3.603.60Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipACFNAcorn EnergyN/AGFAIGuardforce AI2.04%LUNALuna Innovations87.46%SJScienjoy0.32%Insider OwnershipCompanyInsider OwnershipACFNAcorn Energy35.08%GFAIGuardforce AI76.70%LUNALuna Innovations7.60%SJScienjoy33.55%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableACFNAcorn Energy202.51 million1.63 millionN/AGFAIGuardforce AI1,60424.35 million5.67 millionNot OptionableLUNALuna Innovations39033.96 million31.38 millionNo DataSJScienjoy28039.54 million26.27 millionNot OptionableGFAI, ACFN, SJ, and LUNA HeadlinesRecent News About These CompaniesStella-Jones Announces First Quarter ResultsMay 6 at 6:00 AM | globenewswire.comReminder - Stella-Jones' First Quarter 2026 Results Conference Call and Annual Meeting of ShareholdersMay 5 at 6:00 AM | globenewswire.comScienjoy Holding Corporation Reports Fiscal Year 2025 Financial ResultsApril 23, 2026 | prnewswire.comScienjoy Holding Corporation Class A Ordinary Shares (SJ) Pre-MarketApril 18, 2026 | nasdaq.comScienjoy (NASDAQ:SJ) Shares Up 0.8% - Time to Buy?April 10, 2026 | marketbeat.comScienjoy Regains Full Compliance With Nasdaq Minimum Bid Price RequirementFebruary 3, 2026 | tipranks.comScienjoy Holding Corporation Compliant with Nasdaq Bid Price RequirementFebruary 3, 2026 | prnewswire.comScienjoy Deploys AI-Powered Live Streamers Across Chinese and Overseas PlatformsJanuary 28, 2026 | tipranks.comScienjoy Integrates AI Capabilities into Live Streaming Platforms Across MarketsJanuary 28, 2026 | prnewswire.comScienjoy Wins 180-Day Nasdaq Extension to Restore Minimum Bid ComplianceJanuary 9, 2026 | tipranks.comScienjoy Holding Corporation Granted Additional 180-Day Extension by Nasdaq to Regain Compliance with Minimum Bid Price RuleJanuary 9, 2026 | prnewswire.comScienjoy Unveils Nationwide AI Vista Live! Rollout and Elderly Care Partnership in ChinaJanuary 7, 2026 | tipranks.comScienjoy Accelerates Strategic Deployment of AI Applications in China with AI Vista Live!, Targeting a $202 Billion MarketJanuary 7, 2026 | prnewswire.comScienjoy hires ICON Capital Group to review strategic options and address valuation gapDecember 19, 2025 | msn.comScienjoy Holding Corporation Engages ICON Capital Group to Explore Strategic Alternatives and Unlock Shareholder ValueDecember 18, 2025 | prnewswire.comScienjoy launches AI Vista Live! platform in DubaiDecember 11, 2025 | msn.comScienjoy Launches AI Vista Live! in Dubai, Expanding AI InnovationsDecember 11, 2025 | tipranks.comScienjoy Holding Corporation Launches AI Vista Live! Platform, Advancing Next-Generation Digital Human TechnologyDecember 11, 2025 | prnewswire.comScienjoy Reports Increased Operational Income Amid Revenue DeclineNovember 26, 2025 | tipranks.comScienjoy Holding Corporation Reports Nine Months ended September 30, 2025 Unaudited Financial ResultsNovember 26, 2025 | prnewswire.comStella-Jones: Solid Business Amid Short-Term Weakness, Long-Term Value IntactOctober 17, 2025 | seekingalpha.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeGFAI, ACFN, SJ, and LUNA Company DescriptionsAcorn Energy NASDAQ:ACFN$19.00 -0.25 (-1.30%) As of 12:02 PM Eastern This is a fair market value price provided by Massive. Learn more.Acorn Energy, Inc., through its subsidiaries, develops and markets wireless remote monitoring and control systems for various markets in the United States and internationally. It operates through two segments, Power Generation (PG) Monitoring and Cathodic Protection (CP) Monitoring. The PG segment provides wireless remote monitoring and control systems, and services for critical assets, which include stand-by power generators, compressors, pumps, pumpjacks, light towers, turbines, and other industrial equipment; and Internet of Things applications. The CP segment offers remote monitoring of cathodic protection systems on gas pipelines for gas utilities and pipeline companies. The company was incorporated in 1986 and is based in Wilmington, Delaware.Guardforce AI NASDAQ:GFAI$0.52 -0.01 (-1.32%) As of 11:56 AM Eastern This is a fair market value price provided by Massive. Learn more.Guardforce AI Co., Limited offers cash solutions and cash handling services in Thailand. The company operates through four segments: Secured Logistics Business, General Security Solutions, Robotics Solution Business, and Information Security Business. Its services include cash-in-transit, vehicles to banks, ATM management, cash center operations, cash processing, coin processing, consolidate cash center, and cheque center services, as well as cash deposit machine solutions, such as cash deposit management and express cash services. The company also sells and rents robots; and sells and installs Rapid7 software, as well as provision of integrated alarm security system installation, PCI ASV scan, and penetration testing services. Its customers include local commercial banks, chain retailers, coin manufacturing mints, and government authorities. The company was founded in 1982 and is based in Singapore.Luna Innovations NASDAQ:LUNA$1.05 +0.04 (+3.96%) As of 11:31 AM EasternLuna Innovations Incorporated provides fiber optic test, measurement, and control products worldwide. The company offers test and measurement equipment for fiber optic components and sub-assemblies; polarization control products, including components, modules, and instruments to measure, manage, and control polarization and group delay in fiber optic networks; tunable lasers; and single frequency lasers. It also provides ODiSI sensing solution, which provides distributed strain and temperature measurements; distributed temperature sensing system; hyperion sensing products; Terahertz Sensing Systems that provide precise single and multi-layer thickness, density, basis weight, and caliper thickness measurements; and distributed acoustic sensing products. The company primarily markets its fiber optic test, measurement, and control products to telecommunications companies, defense agencies, government system integrators, researchers, original equipment manufacturers, distributors, testing labs, and strategic partners directly, as well as through manufacturer representative organizations, partner and distribution channels, technical sales engineers, value added resellers, and independent sales representatives. Luna Innovations Incorporated was incorporated in 1990 and is headquartered in Roanoke, Virginia.Scienjoy NASDAQ:SJ$1.12 +0.02 (+1.35%) As of 12:00 PM Eastern This is a fair market value price provided by Massive. Learn more.Scienjoy Holding Corporation provides mobile live streaming platforms in the People's Republic of China. The company focuses on interactive show live streaming from broadcasters to users. Its platforms enable users to view and interact with broadcasters through online chat, virtual items, and playing games. The company operates live streaming platforms under the Showself Live Streaming, Lehai Live Streaming, Haixiu Live Streaming, BeeLive Live Streaming, and Hongle Live Streaming names. It also offers technical development and advisory services. The company was founded in 2011 and is based in Hangzhou City, the People's Republic of China. 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