NASDAQ:CDIO Cardio Diagnostics (CDIO) Stock Price, News & Analysis $1.83 +0.02 (+1.10%) Closing price 05/8/2026 04:00 PM EasternExtended Trading$1.93 +0.10 (+5.25%) As of 05/8/2026 07:58 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 Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock About Cardio Diagnostics Stock (NASDAQ:CDIO) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Cardio Diagnostics alerts:Sign Up Key Stats Today's Range$1.83▼$1.9450-Day Range$1.70▼$6.5552-Week Range$0.97▼$7.91Volume46,940 shsAverage Volume67,244 shsMarket Capitalization$5.42 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingSell Company Overview Cardio Diagnostics Holdings, Inc. develops and commercializes epigenetics-based clinical tests for cardiovascular disease. It offers Epi+Gen CHD, a three-year symptomatic coronary heart disease (CHD) risk assessment test targeting CHD events, including heart attacks; and PrecisionCHD, an integrated epigenetic-genetic blood test for the early detection of coronary heart disease. Cardio Diagnostics Holdings, Inc. was founded in 2017 and is headquartered in Chicago, Illinois. Read More Cardio Diagnostics Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks6th Percentile Overall ScoreCDIO MarketRank™: Cardio Diagnostics scored higher than 6% of companies evaluated by MarketBeat. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion0.5 / 5Analyst RatingSell Consensus RatingCardio Diagnostics has received a consensus rating of Sell. The company's average rating score is 1.00, and is based on no strong buy ratings, no buy ratings, no hold ratings, and 1 sell rating.Amount of Analyst CoverageCardio Diagnostics has received no research coverage in the past 90 days.Read more about Cardio Diagnostics' stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthN/A Price to Earnings Ratio vs. the MarketThe P/E ratio of Cardio Diagnostics is -0.49, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of Cardio Diagnostics is -0.49, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioCardio Diagnostics has a P/B Ratio of 0.48. P/B Ratios below 1 indicate that a company could be undervalued with respect to its assets and liabilities.Read more about Cardio Diagnostics' valuation and earnings. Short Interest3.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted2.10% of the float of Cardio Diagnostics has been sold short.Short Interest Ratio / Days to CoverCardio Diagnostics has a short interest ratio ("days to cover") of 0.57, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Cardio Diagnostics has recently increased by 141.47%, indicating that investor sentiment is decreasing significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldCardio Diagnostics does not currently pay a dividend.Dividend GrowthCardio Diagnostics does not have a long track record of dividend growth. News and Social Media0.6 / 5News SentimentN/A News Coverage This WeekMarketBeat has tracked 1 news article for Cardio Diagnostics this week, compared to 1 article on an average week.Search Interest3 people have searched for CDIO on MarketBeat in the last 30 days. Company Ownership0.6 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Cardio Diagnostics insiders have not sold or bought any company stock.Percentage Held by Insiders13.30% of the stock of Cardio Diagnostics is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by Institutions8.06% of the stock of Cardio Diagnostics is held by institutions.Read more about Cardio Diagnostics' insider trading history. Receive CDIO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Cardio Diagnostics and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. 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CDIO Stock News HeadlinesCardio Diagnostics Holdings (NASDAQ: CDIO) Targets Earlier, More Precise Cardiac InsightsMay 7 at 7:57 PM | theglobeandmail.comCardio Diagnostics Holdings (CDIO) Advancing Early Detection, Tackling Heart Disease Through AI and Biomarker InsightsMay 2, 2026 | finance.yahoo.comYour $29.97 book is free todayWhy Some Traders Skip Stocks Entirely You don't need a big account to trade options. In fact, options can give you up to 12 times the leverage of stocks — with a fraction of the capital tied up. This free guide lays it all out in plain English — from A to Z, with step-by-step examples you can follow in your own account.May 9 at 1:00 AM | Profits Run (Ad)Cardio Diagnostics Holdings (CDIO) Advancing AI Solutions for Cardiovascular Disease Detection and ManagementApril 29, 2026 | finance.yahoo.comWhy Cardio Diagnostics Holdings (CDIO) is 'One to Watch'April 20, 2026 | finance.yahoo.comIBN Initiates Coverage of Cardio Diagnostics Holdings Inc.April 8, 2026 | markets.businessinsider.comCardio Diagnostics Holdings (CDIO) Is 'One to Watch'April 1, 2026 | finance.yahoo.comCardio Diagnostics Highlights Strategic Progress in Investor UpdateFebruary 20, 2026 | theglobeandmail.comSee More Headlines CDIO Stock Analysis - Frequently Asked Questions How have CDIO shares performed this year? Cardio Diagnostics' stock was trading at $2.71 at the beginning of 2026. Since then, CDIO stock has decreased by 32.5% and is now trading at $1.83. How were Cardio Diagnostics' earnings last quarter? Cardio Diagnostics Holdings, Inc. (NASDAQ:CDIO) posted its earnings results on Friday, March, 13th. The company reported ($0.80) EPS for the quarter. Cardio Diagnostics had a negative trailing twelve-month return on equity of 71.75% and a negative net margin of 40,612.50%. When did Cardio Diagnostics' stock split? Shares of Cardio Diagnostics reverse split on Tuesday, May 13th 2025.The 1-30 reverse split was announced on Thursday, May 8th 2025. The number of shares owned by shareholders was adjusted after the market closes on Monday, May 12th 2025. An investor that had 100 shares of stock prior to the reverse split would have 3 shares after the split. How do I buy shares of Cardio Diagnostics? Shares of CDIO stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of Cardio Diagnostics own? Based on aggregate information from My MarketBeat watchlists, some other companies that Cardio Diagnostics investors own include Sangamo Therapeutics (SGMO), NVIDIA (NVDA), MSP Recovery (LIFW), NuCana (NCNA), Recursion Pharmaceuticals (RXRX), SoundHound AI (SOUN) and Caribou Biosciences (CRBU). Company Calendar Last Earnings3/13/2026Today5/09/2026Next Earnings (Estimated)5/14/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Yellow Zone (1m+) 1-Year History May 25 Aug 25 Nov 25 Feb 26 May 26 CDIO's financial health is in the Yellow zone, according to TradeSmith. CDIO has been in this zone for over one month. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:CDIO CIK1870144 Webcardiodiagnosticsinc.com Phone302-281-2147FaxN/AEmployees1Year FoundedN/AProfitability EPS (Trailing Twelve Months)($3.72) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$6.50 million Net Margins-40,612.50% Pretax Margin-43,831.37% Return on Equity-71.75% Return on Assets-66.25% Debt Debt-to-Equity RatioN/A Current Ratio9.79 Quick Ratio9.79 Sales & Book Value Annual Sales$10 thousand Price / Sales541.68 Cash FlowN/A Price / Cash FlowN/A Book Value$3.82 per share Price / Book0.48Miscellaneous Outstanding Shares2,960,000Free Float2,566,000Market Cap$5.42 million OptionableNot Optionable Beta2.30 7 Stocks to Buy And Hold ForeverClick the link to see MarketBeat's list of seven stocks and why their long-term outlooks are very promising. Get This Free Report This page (NASDAQ:CDIO) was last updated on 5/9/2026 by MarketBeat.com Staff. 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