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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 NYSE:AMPX NYSEARCA:IWC NYSE:LODE NASDAQ:MRNS NYSEARCA:SPY 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 VolumeAMPXAmprius Technologies$8.69+7.8%$4.00$0.61▼$9.00$950.49M2.683.38 million shs19.87 million shsIWCiShares Micro-Cap ETF$133.75-0.3%$125.12$95.25▼$139.98$829.25M1.1241,987 shs16,634 shsLODEComstock$3.34-2.6%$3.38$1.26▼$10.10$108.27M1.57621,863 shs429,597 shsMRNSMarinus Pharmaceuticals$0.55-0.2%$0.55$0.22▼$1.97$30.32M1.031.91 million shs260 shsSPYSPDR S&P 500 ETF Trust$627.58-0.1%$603.41$481.80▼$629.47$642.38B160.18 million shs65.50 million shsA Beginner's Guide to Investing in CannabisUnlock your free copy of MarketBeat's comprehensive guide to pot stock investing and discover which cannabis companies are poised for growth. Plus, you'll get exclusive access to our daily newsletter with expert stock recommendations from Wall Street's top analysts.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAMPXAmprius Technologies+7.84%+34.52%+129.59%+305.13%+553.38%IWCiShares Micro-Cap ETF-0.29%+1.46%+8.38%+27.92%+4.75%LODEComstock-2.62%-6.96%-19.13%+63.73%+88.91%MRNSMarinus Pharmaceuticals0.00%0.00%0.00%0.00%-60.50%SPYSPDR S&P 500 ETF Trust-0.07%+0.64%+5.04%+19.22%+12.68%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAMPXAmprius Technologies2.4814 of 5 stars2.64.00.00.03.21.70.6IWCiShares Micro-Cap ETFN/AN/AN/AN/AN/AN/AN/AN/ALODEComstock0.9863 of 5 stars3.00.00.00.00.60.00.6MRNSMarinus Pharmaceuticals2.1216 of 5 stars3.20.00.04.20.01.70.6SPYSPDR S&P 500 ETF TrustN/AN/AN/AN/AN/AN/AN/AN/ACompare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAMPXAmprius Technologies 3.13Buy$10.1716.99% UpsideIWCiShares Micro-Cap ETF 2.83Moderate Buy$133.75N/ALODEComstock 2.00Hold$26.00678.44% UpsideMRNSMarinus Pharmaceuticals 2.40Hold$3.92613.29% UpsideSPYSPDR S&P 500 ETF Trust 2.76Moderate Buy$627.58N/ACurrent Analyst Ratings BreakdownLatest IWC, SPY, AMPX, MRNS, and LODE Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails7/18/2025AMPXAmprius TechnologiesWilliam BlairSubscribe to MarketBeat All Access for the recommendation accuracy ratingUpgradeMarket Perform ➝ Outperform7/10/2025AMPXAmprius TechnologiesB. RileySubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$6.00 ➝ $10.00(Data available from 7/19/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAMPXAmprius Technologies$24.17M42.40N/AN/A$0.59 per share14.73IWCiShares Micro-Cap ETFN/AN/AN/AN/AN/AN/ALODEComstock$3.38M32.07N/AN/A$0.68 per share4.91MRNSMarinus Pharmaceuticals$30.99M0.98N/AN/A$0.31 per share1.77SPYSPDR S&P 500 ETF TrustN/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 DateAMPXAmprius Technologies-$44.67M-$0.41N/AN/AN/A-133.34%-67.67%-38.69%8/6/2025 (Estimated)IWCiShares Micro-Cap ETFN/AN/A15.35∞N/AN/AN/AN/AN/ALODEComstock$9.16M-$1.20N/AN/AN/A-1,210.13%-33.56%-23.62%N/AMRNSMarinus Pharmaceuticals-$141.40M-$2.47N/AN/AN/A-446.48%-7,831.35%-120.74%8/11/2025 (Estimated)SPYSPDR S&P 500 ETF TrustN/AN/A25.94∞N/AN/AN/AN/AN/ALatest IWC, SPY, AMPX, MRNS, and LODE EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails8/14/2025Q2 2025AMPXAmprius Technologies-$0.09N/AN/AN/AN/AN/A5/8/2025Q1 2025AMPXAmprius Technologies-$0.09-$0.08+$0.01-$0.08$8.52 million$11.28 millionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAMPXAmprius TechnologiesN/AN/AN/AN/AN/AIWCiShares Micro-Cap ETF$1.391.04%N/AN/AN/ALODEComstockN/AN/AN/AN/AN/AMRNSMarinus PharmaceuticalsN/AN/AN/AN/AN/ASPYSPDR S&P 500 ETF Trust$7.161.14%N/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAMPXAmprius TechnologiesN/A4.744.45IWCiShares Micro-Cap ETFN/AN/AN/ALODEComstock0.162.452.45MRNSMarinus PharmaceuticalsN/A1.661.47SPYSPDR S&P 500 ETF TrustN/AN/AN/ACompare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAMPXAmprius Technologies5.04%IWCiShares Micro-Cap ETFN/ALODEComstock7.96%MRNSMarinus Pharmaceuticals98.80%SPYSPDR S&P 500 ETF Trust63.54%Insider OwnershipCompanyInsider OwnershipAMPXAmprius Technologies12.90%IWCiShares Micro-Cap ETFN/ALODEComstock4.50%MRNSMarinus Pharmaceuticals5.46%SPYSPDR S&P 500 ETF TrustN/ACompare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAMPXAmprius Technologies50117.93 million102.71 millionOptionableIWCiShares Micro-Cap ETFN/A6.20 millionN/ANot OptionableLODEComstock3032.42 million215.10 millionOptionableMRNSMarinus Pharmaceuticals11055.22 million52.20 millionOptionableSPYSPDR S&P 500 ETF TrustN/A1.02 billionN/ANot OptionableIWC, SPY, AMPX, MRNS, and LODE HeadlinesRecent News About These CompaniesSPY Attracts $1.8B as S 500 Hits New Closing RecordJuly 18 at 10:08 PM | finance.yahoo.comBlock to Replace Hess in S&P 500 Index. Shares Jump on Admission News.July 18 at 5:34 PM | barrons.comBlock shares soar 10% on entry into S&P 500July 18 at 5:31 PM | cnbc.comS&P 500 Snapshot: Another Record HighJuly 18 at 5:04 PM | etftrends.comES&P 500, Nasdaq String Records Amid Data-Heavy WeekJuly 18 at 3:17 PM | schaeffersresearch.comInvesco Is S&P 500's Best Stock Friday. It Hopes to Make Money From QQQ.July 18 at 12:28 PM | barrons.comA Weak Dollar Has Added Heft to S&P 500 Earnings. A Flip Could Be Coming.July 18 at 12:01 PM | barrons.comRobinhood, AppLovin Could Soon Join S&P 500 as Hess Deal Creates Opening in IndexJuly 18 at 10:00 AM | barrons.comNASDAQ Index, S&P 500 and Dow Jones Forecasts – US Indices Continue to Look Bullish OverallJuly 18 at 9:54 AM | fxempire.comFHow To Trade SPY, Top Tech Stocks Using Technical AnalysisJuly 18 at 8:47 AM | benzinga.comNasdaq, S&P 500 set to open flat after clocking new recordsJuly 18 at 8:02 AM | proactiveinvestors.caPU.S. Midcap ETFs: ‘Sweet Spot' of OpportunityJuly 18 at 7:59 AM | etftrends.comESPY ETF News, 7/18/2025July 18 at 6:52 AM | tipranks.comBetter Buy: This High-Yield ETF or a Classic S&P 500 Index Fund?July 18 at 3:46 AM | fool.comThe Market Rally Is Gaining Momentum—Don’t Get Left Behind (SPY)...July 17 at 5:25 PM | marketbeat.comUpbeat Earnings Send S&P 500, Nasdaq to New HighsJuly 17 at 4:49 PM | wsj.comThe S&P 500 Isn't That Expensive. Look at Profit Margins.July 17 at 12:08 PM | barrons.comS&P 500: Oracle Climbs Higher as Tech Sector Drives Stock Market RallyJuly 17 at 11:16 AM | fxempire.comFNASDAQ Index, S&P 500 and Dow Jones Forecasts – US Indices Looking for Fresh News?July 17 at 9:26 AM | fxempire.comFS&P 500: TSMC Surges on AI Forecast, ADM Drops After Trump Sugar PushJuly 17 at 8:38 AM | fxempire.comFSPY ETF News, 7/17/2025July 17 at 7:09 AM | tipranks.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeTop HeadlinesView All HeadlinesWhat to Expect From the Q2 Earnings Reporting CycleBy Thomas Hughes | June 23, 2025View What to Expect From the Q2 Earnings Reporting Cycle3 Hot Tech Stocks Showing Bullish Price Action Right NowBy Thomas Hughes | July 11, 2025View 3 Hot Tech Stocks Showing Bullish Price Action Right NowCongress’s May Stock Trades: What They Know That You Don’tBy Thomas Hughes | June 20, 2025View Congress’s May Stock Trades: What They Know That You Don’tS&P 500 All-Time Highs: 5 Catalysts Driving It HigherBy Thomas Hughes | June 30, 2025View S&P 500 All-Time Highs: 5 Catalysts Driving It HigherThe Market Rally Is Gaining Momentum—Don’t Get Left BehindBy Thomas Hughes | July 17, 2025View The Market Rally Is Gaining Momentum—Don’t Get Left BehindIWC, SPY, AMPX, MRNS, and LODE Company DescriptionsAmprius Technologies NYSE:AMPX$8.69 +0.63 (+7.82%) Closing price 07/18/2025 03:59 PM EasternExtended Trading$8.85 +0.16 (+1.78%) As of 07/18/2025 08:00 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.Amprius Technologies, Inc. produces and sells ultra-high energy density lithium-ion batteries for mobility applications. The company offers silicon nanowire anode batteries. Its batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites. The company was incorporated in 2008 and is headquartered in Fremont, California.iShares Micro-Cap ETF NYSEARCA:IWC$133.75 -0.39 (-0.29%) Closing price 07/18/2025 04:10 PM EasternExtended Trading$133.72 -0.03 (-0.02%) As of 07/18/2025 04:10 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.iShares Micro-Cap ETF, formerly iShares Russell Microcap Index Fund, is an exchange traded fund. The Fund seeks investment results that correspond generally to the price and yield performance of the Russell Microcap Index (the Index). The Index measures the microcap sector of the United States equity market. The Index is a float-adjusted capitalization-weighted index and includes equity securities issued by issuers with total market capitalizations ranging from approximately $50 million to $550 million, though these amounts may change from time to time. The Index represents approximately 3% of the market capitalization of listed United States equity securities. The Fund invests in a representative sample of securities included in the Index that collectively has an investment profile similar to the Index. It invests in a range of sectors, such as financial, health care, technology, producer discretionary, energy and utilities. The Fund's investment advisor is BlackRock Fund Advisors.Comstock NYSE:LODE$3.34 -0.09 (-2.62%) Closing price 07/18/2025 04:00 PM EasternExtended Trading$3.34 +0.01 (+0.15%) As of 07/18/2025 08:00 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.Comstock Inc. engages in the systemic decarbonization business in Nevada and internationally. It operates through Renewable Energy, Mining, and Strategic and Other Investments segments. It will develop technology for the deploying of extraction and refining facilities that convert wasted and unused biomass and other natural resources; and a demonstration system to extract black mass containing lithium, graphite, nickel, cobalt, manganese, copper, aluminum, and other metals from up to lithium-ion batteries. The company also owns the Lucerne Project located in the Storey County, Nevada; and the Spring Valley Project situated in the Lyon County, Nevada. In addition, it offers upstream and downstream design, engineering, fabrication, procurement, and construction solutions; and invests in non-mining real estate investments. The company was incorporated in 2008 and is based in Virginia City, Nevada.Marinus Pharmaceuticals NASDAQ:MRNSMarinus Pharmaceuticals, Inc., a pharmaceutical company, focuses on development and commercialization of therapeutic products for patients suffering from rare genetic epilepsies and other seizure disorders. It offers ZTALMY (ganaxolone), an oral suspension for the treatment of seizures associated with cyclin-dependent kinase-like 5 deficiency disorder for adult and pediatric patient populations in acute and chronic care, and in-patient and self-administered settings. The company's ZTALMY product candidate acts at synaptic and extrasynaptic GABAA receptors, a target for its anti-seizure, antidepressant, and anxiolytic potential. It is developing ganaxolone for treating genetic epilepsy disorders, such as PCDH19-related epilepsy, and tuberous sclerosis complex. Marinus Pharmaceuticals, Inc. has license agreement with Purdue Neuroscience Company and CyDex Pharmaceuticals, Inc.; and collaboration agreement with Orion Corporation and Tenacia Biotechnology (Shanghai) Co., Ltd. Marinus Pharmaceuticals, Inc. was incorporated in 2003 and is headquartered in Radnor, Pennsylvania.SPDR S&P 500 ETF Trust NYSEARCA:SPY$627.58 -0.46 (-0.07%) Closing price 07/18/2025 04:10 PM EasternExtended Trading$627.79 +0.21 (+0.03%) As of 07/18/2025 08:00 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.SPDR S&P 500 ETF Trust (the Trust) is a unit investment trust. The Trust seeks to provide investment results that, before expenses, correspond generally to the price and yield performance of the S&P 500 Index (the Index). The Trust seeks to achieve this investment objective by holding a portfolio of the common stocks that are included in the Index (the Portfolio), with the weight of each stock in the Portfolio substantially corresponding to the weight of such stock in the Index. The Trust invests in a range of sectors, including pharmaceuticals; oil, gas and consumable fuels; technology hardware storage and peripherals; insurance; information technology (IT) services; healthcare providers and services; semiconductors and semiconductor equipment; hotels, restaurants and leisure, communications equipment; commercial services and supplies; road and rail; real estate management and development; containers and packaging; professional services, and paper and forest products. 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