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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:AEHR NASDAQ:NAUT NASDAQ:QSI NYSE:SENS 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 VolumeAEHRAehr Test Systems$14.59+9.8%$10.89$6.27▼$21.44$434.34M2.291.06 million shs2.57 million shsNAUTNautilus Biotechnology$0.75-7.5%$0.76$0.66▼$3.09$94.87M1.42160,437 shs209,762 shsQSIQuantum-Si$1.81-3.2%$1.68$0.61▼$5.77$332.14M2.8911.36 million shs5.69 million shsSENSSenseonics$0.50+1.4%$0.54$0.25▼$1.40$327.11M0.928.56 million shs4.42 million shs7 Energy Stocks to Buy and Hold ForeverWith the proliferation of data centers and electric vehicles, the electric grid will only get more strained. Download this report to learn how energy stocks can play a role in your portfolio as the global demand for energy continues to grow.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAEHRAehr Test Systems-12.39%-12.16%+12.82%+63.47%+7.09%NAUTNautilus Biotechnology+2.90%+3.82%+5.30%+9.93%-64.03%QSIQuantum-Si+3.31%-5.56%+9.36%+59.83%+103.53%SENSSenseonics-0.44%+0.61%-6.98%-13.66%+20.24%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAEHRAehr Test Systems3.7424 of 5 stars3.53.00.00.02.82.51.9NAUTNautilus Biotechnology2.1437 of 5 stars2.52.00.00.00.04.20.6QSIQuantum-Si2.3605 of 5 stars3.33.00.00.01.82.50.0SENSSenseonics1.5539 of 5 stars3.81.00.00.01.10.00.6Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAEHRAehr Test Systems 3.00Buy$25.0071.35% UpsideNAUTNautilus Biotechnology 1.00Sell$2.13182.58% UpsideQSIQuantum-Si 2.67Moderate Buy$3.4891.99% UpsideSENSSenseonics 3.50Strong Buy$1.70240.00% UpsideCurrent Analyst Ratings BreakdownLatest NAUT, AEHR, SENS, and QSI Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails7/8/2025SENSSenseonicsHC WainwrightSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$1.10 ➝ $1.406/2/2025SENSSenseonicsHC WainwrightSubscribe to MarketBeat All Access for the recommendation accuracy ratingSet Price TargetBuy$1.105/19/2025QSIQuantum-SiHC WainwrightSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$5.505/16/2025QSIQuantum-SiAlliance Global PartnersSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy4/10/2025SENSSenseonicsMizuhoSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageOutperform$2.00(Data available from 7/10/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAEHRAehr Test Systems$58.97M7.37$1.15 per share12.67$3.86 per share3.78NAUTNautilus BiotechnologyN/AN/AN/AN/A$1.66 per shareN/AQSIQuantum-Si$3.06M108.54N/AN/A$1.29 per share1.40SENSSenseonics$23.68M13.81N/AN/A$0.07 per share7.14Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateAEHRAehr Test Systems$33.16M$0.78N/A66.32N/A-6.63%-0.15%-0.13%N/ANAUTNautilus Biotechnology-$70.78M-$0.54N/AN/AN/AN/A-31.87%-27.39%7/29/2025 (Estimated)QSIQuantum-Si-$101.01M-$0.68N/AN/AN/A-2,925.41%-41.44%-37.09%8/6/2025 (Estimated)SENSSenseonics-$60.39M-$0.11N/AN/AN/A-362.30%-842.25%-67.99%N/ALatest NAUT, AEHR, SENS, and QSI EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails8/6/2025Q2 2025QSIQuantum-Si-$0.16N/AN/AN/A$1.28 millionN/A7/29/2025Q2 2025NAUTNautilus Biotechnology-$0.14N/AN/AN/AN/AN/A7/8/2025Q4 2025AEHRAehr Test Systems-$0.02-$0.01+$0.01-$0.10$14.83 million$14,100.00 billion5/15/2025Q1 2025QSIQuantum-Si-$0.17-$0.11+$0.06-$0.11$0.96 million$0.84 million4/29/2025Q1 2025NAUTNautilus Biotechnology-$0.14-$0.13+$0.01-$0.13N/AN/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAEHRAehr Test SystemsN/AN/AN/AN/AN/ANAUTNautilus BiotechnologyN/AN/AN/AN/AN/AQSIQuantum-SiN/AN/AN/AN/AN/ASENSSenseonicsN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAEHRAehr Test SystemsN/A5.713.07NAUTNautilus BiotechnologyN/A17.3617.36QSIQuantum-SiN/A19.2418.89SENSSenseonics59.172.472.38Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAEHRAehr Test Systems69.69%NAUTNautilus Biotechnology50.71%QSIQuantum-Si39.90%SENSSenseonics12.36%Insider OwnershipCompanyInsider OwnershipAEHRAehr Test Systems6.20%NAUTNautilus Biotechnology41.10%QSIQuantum-Si30.04%SENSSenseonics4.30%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAEHRAehr Test Systems9029.77 million27.93 millionOptionableNAUTNautilus Biotechnology130126.15 million74.30 millionOptionableQSIQuantum-Si150183.50 million128.38 millionOptionableSENSSenseonics90654.22 million573.90 millionN/ANAUT, AEHR, SENS, and QSI HeadlinesRecent News About These CompaniesFY2026 EPS Estimates for Senseonics Raised by HC WainwrightJuly 10 at 9:33 AM | marketbeat.comNew glucose sensors, insulin patch pumps lead ADA’s Scientific SessionsJuly 3, 2025 | medtechdive.comMADA takeaways: Diabetes tech firms preview new patch pumps, glucose sensorsJune 24, 2025 | medtechdive.comMSenseonics lays out hopes for next-gen CGM commercial timelinesJune 24, 2025 | drugdeliverybusiness.comDHere's Why Senseonics (SENS) is Poised for a Turnaround After Losing 5.7% in 4 WeeksJune 18, 2025 | zacks.comSenseonics Holdings, Inc. to Host In-Person and Virtual Analyst Event at ADA 2025: Eversense® 365 Continuous Glucose Monitoring System for People with DiabetesJune 4, 2025 | globenewswire.comSenseonics Holdings, Inc. Secures $57.5 Million in Public Offering and $20.3 Million from Private Placement with Abbott LaboratoriesMay 21, 2025 | quiverquant.comQSenseonics Holdings, Inc. Announces Closing of Public Offering, Including Exercise in Full of the Underwriters' Option to Purchase Additional Shares, and Closing of Private PlacementMay 21, 2025 | globenewswire.comRevisiting Senseonics After 4 Years: Still A Big Investment OpportunityMay 21, 2025 | seekingalpha.comSenseonics Announces Pricing of $50 Million Public Offering of Common Stock and Concurrent Private PlacementMay 15, 2025 | globenewswire.comSenseonics opens $50M public offering, $25M private placement with AbbottMay 15, 2025 | drugdeliverybusiness.comDSenseonics Announces Commencement of $50 Million Public Offering of Common Stock and Concurrent Private PlacementMay 15, 2025 | globenewswire.comSenseonics Holdings, Inc. (AMEX:SENS) Q1 2025 Earnings Call TranscriptMay 9, 2025 | msn.comSenseonics Holdings, Inc. Reports First Quarter Financial ResultsMay 9, 2025 | finance.yahoo.comSenseonics posts Q2 sales beat, submits 365-day CGM for CE markMay 9, 2025 | drugdeliverybusiness.comDSenseonics targets $34M-$38M revenue in 2025 with Eversense 365 expansionMay 9, 2025 | msn.comSenseonics Holdings, Inc. (SENS) Q1 2025 Earnings Call TranscriptMay 8, 2025 | seekingalpha.comSenseonics Holdings (SENS) Reports Q1 Loss, Tops Revenue EstimatesMay 8, 2025 | zacks.comSequel Med Tech and Senseonics Partner to Launch twiist™ AID System Compatible with Eversense® 365 CGMApril 30, 2025 | nasdaq.comSenseonics, Sequel partner to use 1-year CGM in automated insulin dosing systemApril 30, 2025 | medtechdive.comMSequel Med Tech, Senseonics to integrate year-long CGM into automated insulin delivery systemApril 29, 2025 | drugdeliverybusiness.comDNew MarketBeat Followers Over TimeMedia Sentiment Over TimeTop HeadlinesView All HeadlinesWhy BigBear.ai Could Rally 100% and Catch Palantir SoonBy Gabriel Osorio-Mazilli | June 30, 2025View Why BigBear.ai Could Rally 100% and Catch Palantir Soon3 Defense Leaders Set to Gain From Rising Military SpendBy Chris Markoch | July 5, 2025View 3 Defense Leaders Set to Gain From Rising Military SpendGitLab: Buy It Low While You Still Can—Higher Prices Are ComingBy Thomas Hughes | June 11, 2025View GitLab: Buy It Low While You Still Can—Higher Prices Are ComingOuster Soars 27% as DoD Grants First 3D LiDAR Approval for DronesBy Leo Miller | June 14, 2025View Ouster Soars 27% as DoD Grants First 3D LiDAR Approval for DronesZscaler Upgraded: Wall Street Forecasts 26% More UpsideBy Gabriel Osorio-Mazilli | June 17, 2025View Zscaler Upgraded: Wall Street Forecasts 26% More UpsideNAUT, AEHR, SENS, and QSI Company DescriptionsAehr Test Systems NASDAQ:AEHR$14.59 +1.30 (+9.78%) Closing price 04:00 PM EasternExtended Trading$14.56 -0.03 (-0.21%) As of 06:00 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.Aehr Test Systems provides test solutions for testing, burning-in, and semiconductor devices in wafer level, singulated die, and package part form, and installed systems worldwide. Its product portfolio includes FOX-XP and FOX-NP systems that are full wafer contact and singulated die/module test and burn-in systems that can test, burn-in, and stabilize range of devices, including silicon carbide-based and other power semiconductors, 2D and 3D sensors used in mobile phones, tablets and other computing devices, memory semiconductors, processors, microcontrollers, systems-on-a-chip, and photonics and integrated optical devices. The company also offers FOX-CP system, a low-cost single-wafer compact test solution for logic, memory, and photonic devices; FOX WaferPak Contactor, a full wafer contactor capable of testing wafers up to 300mm that enables integrated circuit manufacturers to perform test, burn-in, and stabilization of full wafers on the FOX-P systems. In addition, it provides FOX DiePak Carrier, a reusable temporary package that enables IC manufacturers to perform final test and burn-in of bare die and modules; and FOX DiePak Loader. The company was incorporated in 1977 and is headquartered in Fremont, California.Nautilus Biotechnology NASDAQ:NAUT$0.75 -0.06 (-7.49%) Closing price 04:00 PM EasternExtended Trading$0.79 +0.04 (+5.05%) As of 05:38 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.Nautilus Biotechnology, Inc., a development stage life sciences company, engages in creating a platform technology for quantifying and unlocking the complexity of the proteome. The company develops Nautilus Platform, a proteomics platform that includes end-to-end solution comprised of instruments, consumables, and software analysis. It also offers proteome analysis system, a high-resolution optical imaging system for integrated fluidics and liquid handling sub-system. In addition, the company provides sample preparation, flow cells, multi-affinity probe reagents, and instrument buffers system to perform multi-cycle analysis runs. Nautilus Biotechnology, Inc. was incorporated in 2016 and is headquartered in Seattle, Washington.Quantum-Si NASDAQ:QSI$1.81 -0.06 (-3.21%) Closing price 04:00 PM EasternExtended Trading$1.82 +0.00 (+0.28%) As of 06:02 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.Quantum-Si incorporated, a life sciences company, engages in the development of single-molecule detection platform to enable Next Generation Protein Sequencing (NGPS). The company's platform is comprised of the Platinum NGPS instrument; the Platinum Analysis Software service; and reagent kits and semiconductor chips for use with its instruments. It is used in protein identification, protein variants, antibody characterization, biomarker identification, and post translational modification analysis applications. The company was founded in 2013 is headquartered in Branford, Connecticut.Senseonics NYSE:SENS$0.50 +0.01 (+1.42%) Closing price 04:00 PM EasternExtended Trading$0.50 +0.00 (+0.60%) As of 05:58 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.Senseonics Holdings, Inc., a medical technology company, focuses on development and manufacturing of continuous glucose monitoring (CGM) systems for people with diabetes in the United States and internationally. The company's products include Eversense, Eversense XL, and Eversense E3 that are implantable CGM systems to measure glucose levels in people with diabetes through an under-the-skin sensor, a removable and rechargeable smart transmitter, and a convenient app for real-time diabetes monitoring and management. It serves healthcare providers and patients through a network of distributors and strategic fulfillment partners. Senseonics Holdings, Inc. was founded in 1996 and is headquartered in Germantown, Maryland. 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