NASDAQ:PTIX Atrinsic (PTIX) Stock Price, News & Analysis $0.36 0.00 (0.00%) As of 08/17/2026 Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsInsider TradesSEC FilingsTrendsBuy 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$0.36▼$0.3650-Day Range$0.13▼$0.6852-Week Range$0.13▼$6.20Volume15 shsAverage Volume29,810 shsMarket Capitalization$651.60 thousandP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingSell 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 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 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. By 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. 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Because my research has led me to believe we’re risking World War 3 with Iran for a completely different reason.August 19 at 1:00 AM | Banyan Hill Publishing (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 $1.30 at the start of the year. Since then, PTIX shares have decreased by 72.3% and is now trading at $0.36. How were Atrinsic's earnings last quarter? Atrinsic Inc. (NASDAQ:PTIX) released its quarterly earnings results on Wednesday, September, 10th. The company reported ($1.37) earnings per share for the quarter. When did Atrinsic's stock split? Shares of Atrinsic reverse split before market open on 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), NVIDIA (NVDA), Cytokinetics (CYTK), Heatwurx (PCSA), Akero Therapeutics (AKRO). Company Calendar Last Earnings9/10/2025Today8/19/2026Fiscal 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. Red Zone (9m+) 1-Year History Aug 25 Nov 25 Feb 26 May 26 Aug 26 PTIX's financial health is in the Red zone, according to TradeSmith. PTIX has been in this zone for over 9 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:PTIX CIK1022899 Webwww.protagenic.com Phone212-994-8200Fax603-761-6223Employees2Year Founded1994Profitability EPS (Trailing Twelve Months)$1.39 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 EquityN/A Return on Assets-379.72% Debt Debt-to-Equity RatioN/A Current Ratio0.29 Quick Ratio0.29 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$1.96 per share Price / Book0.18Miscellaneous Outstanding Shares1,810,000Free Float1,780,000Market Cap$651.60 thousand OptionableNot Optionable Beta1.07 Social Links The 7 Hottest IPO Stories of 2026MarketBeat just released its list of the 7 hottest IPOs expected to hit Wall Street in 2026. 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