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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:AEHRNASDAQ:CTKBNASDAQ:ODYSNASDAQ:QSI 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$8.85+0.2%$8.40$6.27▼$21.44$263.47M2.211.17 million shs370,517 shsCTKBCytek Biosciences$2.42-1.2%$3.57$2.37▼$7.63$306.52M1.42737,875 shs914,867 shsODYSOdysight.Ai$5.35+3.9%$5.75$5.01▼$10.80$87.29M0.6424,750 shs1,723 shsQSIQuantum-Si$1.94+11.5%$1.30$0.61▼$5.77$355.29M2.7110.48 million shs31.51 million shsThe 10 Best AI Stocks to Own in 2025Wondering where to start (or end) with AI stocks? These 10 simple stocks can help investors build long-term wealth as artificial intelligence continues to grow into the future.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAEHRAehr Test Systems+0.23%-4.74%+8.99%-22.57%-27.10%CTKBCytek Biosciences-1.22%-9.36%-35.81%-52.69%-59.46%ODYSOdysight.Ai+3.88%-1.47%+2.49%-18.45%+534,999,900.00%QSIQuantum-Si+11.49%+31.08%+65.81%+13.45%+10.23%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAEHRAehr Test Systems3.4874 of 5 stars3.52.00.00.01.62.53.1CTKBCytek Biosciences2.0942 of 5 stars3.12.00.00.03.21.70.6ODYSOdysight.Ai1.7355 of 5 stars3.50.00.00.03.30.80.0QSIQuantum-Si2.2667 of 5 stars3.33.00.00.02.62.50.0Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAEHRAehr Test Systems 3.00Buy$25.00182.49% UpsideCTKBCytek Biosciences 2.25Hold$5.25116.94% UpsideODYSOdysight.Ai 3.00Buy$10.0086.92% UpsideQSIQuantum-Si 2.67Moderate Buy$3.4879.12% UpsideCurrent Analyst Ratings BreakdownLatest ODYS, QSI, CTKB, and AEHR Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails5/19/2025QSIQuantum-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 ➝ Buy5/12/2025CTKBCytek BiosciencesThe Goldman Sachs GroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetSell ➝ Sell$3.50 ➝ $3.005/9/2025CTKBCytek BiosciencesTD CowenSubscribe to MarketBeat All Access for the recommendation accuracy ratingDowngradeBuy ➝ Hold$4.004/2/2025ODYSOdysight.AiBenchmarkSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageBuy$10.003/19/2025CTKBCytek BiosciencesStephensSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingOverweight ➝ Overweight$6.00 ➝ $6.003/5/2025QSIQuantum-SiNational BanksharesSubscribe to MarketBeat All Access for the recommendation accuracy ratingSet Price Target$3.653/5/2025QSIQuantum-SiAlliance Global PartnersSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy3/4/2025CTKBCytek BiosciencesPiper SandlerSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetOverweight ➝ Overweight$8.50 ➝ $8.00(Data available from 5/24/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAEHRAehr Test Systems$61.48M4.29$0.93 per share9.54$3.86 per share2.29CTKBCytek Biosciences$197.05M1.56$0.01 per share206.16$2.90 per share0.83ODYSOdysight.Ai$5.84M14.94N/AN/A$1.71 per share3.13QSIQuantum-Si$3.44M103.19N/AN/A$1.92 per share1.01Compare 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$0.7811.8040.23N/A43.41%21.09%18.08%7/15/2025 (Estimated)CTKBCytek Biosciences-$12.15M-$0.09N/A∞N/A-5.05%-2.58%-2.05%8/5/2025 (Estimated)ODYSOdysight.Ai-$9.44M-$1.02N/A∞N/A-207.38%-56.78%-43.36%N/AQSIQuantum-Si-$95.96M-$0.68N/AN/AN/A-3,968.84%-36.96%-33.57%8/6/2025 (Estimated)Latest ODYS, QSI, CTKB, and AEHR EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails5/15/2025Q1 2025ODYSOdysight.AiN/A-$0.29N/A-$0.29N/A$2.07 million5/15/2025Q1 2025QSIQuantum-Si-$0.17-$0.11+$0.06-$0.11$0.96 million$0.84 million5/8/2025Q1 2025CTKBCytek Biosciences-$0.04-$0.09-$0.05-$0.09$43.18 million$41.46 million3/26/2025Q4 2024ODYSOdysight.AiN/A-$0.29N/A-$0.29N/A$1.30 millionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAEHRAehr Test SystemsN/AN/AN/AN/AN/ACTKBCytek BiosciencesN/AN/AN/AN/AN/AODYSOdysight.AiN/AN/AN/AN/AN/AQSIQuantum-SiN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAEHRAehr Test SystemsN/A7.553.82CTKBCytek BiosciencesN/A6.215.47ODYSOdysight.AiN/A7.907.79QSIQuantum-SiN/A13.4213.15Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAEHRAehr Test Systems69.69%CTKBCytek Biosciences69.46%ODYSOdysight.Ai19.67%QSIQuantum-Si39.90%Insider OwnershipCompanyInsider OwnershipAEHRAehr Test Systems6.20%CTKBCytek Biosciences9.60%ODYSOdysight.AiN/AQSIQuantum-Si30.04%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAEHRAehr Test Systems9029.77 million27.87 millionOptionableCTKBCytek Biosciences500126.66 million116.45 millionOptionableODYSOdysight.Ai4016.32 millionN/AN/AQSIQuantum-Si150183.14 million99.84 millionOptionableODYS, QSI, CTKB, and AEHR HeadlinesRecent News About These CompaniesHC Wainwright Predicts Increased Earnings for Quantum-SiMay 23 at 8:29 AM | marketbeat.comFY2025 EPS Estimates for Quantum-Si Lifted by HC WainwrightMay 23 at 2:43 AM | americanbankingnews.comQuantum-Si (NASDAQ:QSI) Given "Buy" Rating at HC WainwrightMay 22 at 8:21 AM | marketbeat.comQuantum-Si's (QSI) "Buy" Rating Reiterated at HC WainwrightMay 22 at 3:51 AM | americanbankingnews.comQuantum-Si incorporated (NASDAQ:QSI) Q1 2025 Earnings Call TranscriptMay 17, 2025 | insidermonkey.comQuantum-Si Q1 2025 Earnings PreviewMay 16, 2025 | msn.comQuantum-Si Inc (QSI) Q1 2025 Earnings Call Highlights: Revenue Surges 84% Amid Strategic ExpansionsMay 16, 2025 | finance.yahoo.comQuantum-Si incorporated (QSI) Q1 2025 Earnings Call TranscriptMay 15, 2025 | seekingalpha.comQuantum-Si Incorporated (QSI) Reports Q1 Loss, Lags Revenue EstimatesMay 15, 2025 | zacks.comQuantum-Si Reports First Quarter 2025 Financial ResultsMay 15, 2025 | businesswire.comQuantum-Si (QSI) Earnings Coverage: Complete 1Q CoverageMay 15, 2025 | 247wallst.comretail investors who own 52% along with institutions invested in Quantum-Si incorporated (NASDAQ:QSI) saw increase in their holdings value last weekMay 14, 2025 | uk.finance.yahoo.comQuantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)May 13, 2025 | businesswire.comQuantum-Si (QSI) Projected to Post Quarterly Earnings on ThursdayMay 10, 2025 | marketbeat.comRenaissance Technologies LLC Buys 503,400 Shares of Quantum-Si incorporated (NASDAQ:QSI)April 30, 2025 | marketbeat.comQuantum-Si to Report First Quarter 2025 Financial Results on May 15, 2025April 26, 2025 | seekingalpha.comWhy Quantum-Si incorporated’s (QSI) Stock Is Up 5.98%April 25, 2025 | aaii.comQuantum-Si (NasdaqGM:QSI) Launches Platinum Pro Amid 5% Stock Dip Over The Past MonthApril 3, 2025 | finance.yahoo.comQuantum-Si Begins Shipping Platinum® Pro, Advancing Accessibility in Next-Gen Protein Sequencing™March 26, 2025 | finance.yahoo.comQuantum-Si incorporated (NASDAQ:QSI) CFO Jeffry R. Keyes Sells 8,626 SharesMarch 25, 2025 | insidertrades.comQuantum-Si to Participate in DNAnexus Webinar on Large Scale Proteomics in Multi-Omics ResearchMarch 24, 2025 | businesswire.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeODYS, QSI, CTKB, and AEHR Company DescriptionsAehr Test Systems NASDAQ:AEHR$8.85 +0.02 (+0.23%) Closing price 05/23/2025 04:00 PM EasternExtended Trading$8.84 -0.01 (-0.16%) As of 05/23/2025 07:51 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.Cytek Biosciences NASDAQ:CTKB$2.42 -0.03 (-1.22%) Closing price 05/23/2025 04:00 PM EasternExtended Trading$2.42 0.00 (-0.21%) As of 05/23/2025 07:19 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.Cytek Biosciences, Inc., a cell analysis solutions company, provides cell analysis tools that facilitates scientific advances in biomedical research and clinical applications. It offers aurora and northern lights systems, which are spectrum flow cytometers that delivers cell analysis by utilizing the fluorescence signatures from multiple lasers to distinguish fluorescent tags on single cells; and aurora cell sorter system that leverages full spectrum profiling technology to further broaden potential applications across cell analysis; aurora CS systems; amnis imagestream imaging flow cytometers; guava muse cell analyzers; guava easycyte flow cytometers; and orion reagent cocktail preparation systems. The company also provides reagents and kits, including cFluor reagents that are fluorochrome conjugated antibodies used to identify cells of interest for analysis on its instruments, as well as 25-color immunoprofiling assay that provides turnkey solutions for identifying major human immune subpopulations for TBNK cells, monocytes, dendritic cells, and basophils. In addition, it offers automated micro-sampling system and automated sample loader system, an automated loaders to integrate seamlessly into the aurora and northern lights systems; SpectroFlo software that provides intuitive workflow from quality control to data analysis for aurora and northern lights systems; and customer support tools. The company serves pharmaceutical and biopharma companies, academic research centers, and clinical research organizations. It distributes its products through direct sales force and support organizations in North America, Europe, China, and the Asia-Pacific regions; and through distributors or sales agents in European, Latin American, and the Middle Eastern countries. The company was formerly known as Cytoville, Inc. and changed its name to Cytek Biosciences, Inc. in August 2015. Cytek Biosciences, Inc. was founded in 1992 and is headquartered in Fremont, California.Odysight.Ai NASDAQ:ODYS$5.35 +0.20 (+3.88%) As of 05/23/2025 10:17 AM EasternOdysight.ai, Inc. engages in the development and manufacture of customized visual solutions for organizations across a variety of industries in the form of micro cameras and supplementary technologies. Its devices can used across the medical, aerospace, industrial, research, and defense industries. The company was founded on March 22, 2013 and is headquartered in Omer, Israel.Quantum-Si NASDAQ:QSI$1.94 +0.20 (+11.49%) Closing price 05/23/2025 04:00 PM EasternExtended Trading$1.93 -0.01 (-0.52%) As of 05/23/2025 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.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. 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