NASDAQ:PTIX Atrinsic (PTIX) Stock Price, News & Analysis $3.02 +0.04 (+1.17%) As of 09:57 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitorsEarningsHeadlinesInsider TradesSEC FilingsShort InterestTrendsBuy This Stock About Atrinsic Stock (NASDAQ:PTIX) 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 Atrinsic alerts:Sign Up Key Stats Today's Range$2.97▼$3.0850-Day Range$2.28▼$4.5152-Week Range$2.25▼$15.26Volume9,844 shsAverage Volume1.55 million shsMarket Capitalization$1.78 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Protagenic Therapeutics, Inc., a biopharmaceutical company, engages in the discovery and development of therapeutics to treat stress-related neuropsychiatric and mood disorders. Its lead compound comprises PT00114, a synthetic form of teneurin carboxy-terminal associated peptide, an endogenous brain signaling peptide that can dampen overactive stress responses. Protagenic Therapeutics, Inc. is headquartered in New York, New York. Read More Atrinsic Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks6th Percentile Overall ScorePTIX MarketRank™: Atrinsic 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 OpinionN/AAnalyst RatingN/A Consensus RatingThere is not enough analysis data for Atrinsic. Earnings and Valuation0.0 / 5Proj. Earnings GrowthN/A Price to Earnings Ratio vs. the MarketThe P/E ratio of Atrinsic is -0.32, 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 Atrinsic is -0.32, 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 RatioAtrinsic has a P/B Ratio of 1.53. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities.Read more about Atrinsic's valuation and earnings. Short Interest3.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted3.05% of the float of Atrinsic has been sold short.Short Interest Ratio / Days to CoverAtrinsic has a short interest ratio ("days to cover") of 0, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Atrinsic has recently increased by 11.47%, indicating that investor sentiment is decreasing significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldAtrinsic does not currently pay a dividend.Dividend GrowthAtrinsic does not have a long track record of dividend growth. Sustainability and ESGN/AEnvironmental ScoreN/A Percentage of Shares Shorted3.05% of the float of Atrinsic has been sold short.Short Interest Ratio / Days to CoverAtrinsic has a short interest ratio ("days to cover") of 0, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Atrinsic has recently increased by 11.47%, indicating that investor sentiment is decreasing significantly. News and Social Media0.6 / 5News SentimentN/A Search Interest4 people have searched for PTIX on MarketBeat in the last 30 days. This is an increase of 33% compared to the previous 30 days. Company Ownership1.7 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Atrinsic insiders have not sold or bought any company stock.Percentage Held by Insiders35.00% of the stock of Atrinsic is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by InstitutionsOnly 7.97% of the stock of Atrinsic is held by institutions.Read more about Atrinsic's insider trading history. Receive PTIX Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Atrinsic and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. PTIX Stock News HeadlinesProtagenic Therapeutics Announces Grant of new patent in Japan for its Modified Stilbenoid Program Drug CandidatesJuly 30, 2025 | globenewswire.comProtagenic Therapeutics, Inc. (PTIX) - Yahoo FinanceJune 24, 2025 | finance.yahoo.com7 market signals flashing red right nowRight now, the same 7 key indicators that predicted 1929, the 1970s stagflation, and the 2008 meltdown are all flashing red at the same time.October 24 at 2:00 AM | American Alternative (Ad)Protagenic & Phytanix Merge in All-Stock Move, Sparking Retail FrenzyMay 29, 2025 | msn.comProtagenic Therapeutics swaps warrants for sharesMay 21, 2025 | uk.investing.comProtagenic Therapeutics Shares Double After Buyout Offer From Phytanix BioMay 20, 2025 | marketwatch.comProtagenic Therapeutics stock soars on merger to create Neuroactive Biopharmaceutical companyMay 20, 2025 | in.investing.comProtagenic Therapeutics Merges With Phytanix Bio In All-Stock Deal: Retail Turns Extremely BullishMay 20, 2025 | msn.comSee More Headlines PTIX Stock Analysis - Frequently Asked Questions How have PTIX shares performed this year? Atrinsic's stock was trading at $6.86 at the beginning of the year. Since then, PTIX shares have decreased by 56.4% and is now trading at $2.99. How were Atrinsic's earnings last quarter? Atrinsic Inc. (NASDAQ:PTIX) announced its quarterly earnings data on Wednesday, September, 10th. The company reported ($1.37) earnings per share for the quarter. When did Atrinsic's stock split? Atrinsic shares reverse split on the morning of Monday, May 5th 2025.A 1-14 reverse split was announced. The number of shares owned by shareholders was adjusted after the market closes on Sunday, May 4th 2025. An investor that had 100 shares of stock prior to the reverse split would have 7 shares after the split. How do I buy shares of Atrinsic? Shares of PTIX 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 Atrinsic own? Based on aggregate information from My MarketBeat watchlists, some other companies that Atrinsic investors own include Fulcrum Therapeutics (FULC), VIVUS (VVUS), NVIDIA (NVDA), Cytokinetics (CYTK), Heatwurx (PCSA), Acasti Pharma (ACST) and Akero Therapeutics (AKRO). Company Calendar Last Earnings9/10/2025Today10/24/2025Next Earnings (Estimated)11/13/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:PTIX CIK1022899 Webwww.protagenic.com Phone212-994-8200Fax603-761-6223Employees2Year Founded1994Profitability EPS (Trailing Twelve Months)($9.44) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$5.53 million Net MarginsN/A Pretax MarginN/A Return on Equity-1,586.63% Return on Assets-585.65% Debt Debt-to-Equity RatioN/A Current Ratio0.86 Quick Ratio0.86 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$1.96 per share Price / Book1.54Miscellaneous Outstanding Shares590,000Free Float383,000Market Cap$1.78 million OptionableNot Optionable Beta0.38 Social Links (Almost) Everything You Need To Know About The EV MarketLooking to profit from the electric vehicle mega-trend? 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