This company has been marked as potentially delisted and may not be actively trading. NASDAQ:RTTR Ritter Pharmaceuticals (RTTR) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock Analysis About Ritter Pharmaceuticals Stock (NASDAQ:RTTR) Get Ritter Pharmaceuticals alerts:Sign Up Key Stats Today's Range$1.25▼$1.3450-Day Range$0.45▼$4.0952-Week Range$0.15▼$1.27Volume28,860 shsAverage Volume14.23 million shsMarket Capitalization$61.85 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Ritter Pharmaceuticals, Inc. develops and sells novel therapeutic products that modulate the human gut microbiome to treat gastrointestinal diseases. Its lead product candidate is RP-G28, a novel microbiome modulator, which has completed Phase 2b clinical trial for the reduction of symptoms associated with lactose intolerance. The company's product, RP-G28 is designed to stimulate the growth of lactose-metabolizing bacteria in the colon, thereby adapting the gut microbiome to assist in digesting the lactose that reaches the large intestine. The company was formerly known as Ritter Natural Sciences, LLC and changed its name to Ritter Pharmaceuticals, Inc. in September 2008. Ritter Pharmaceuticals, Inc. was founded in 2004 and is headquartered in Los Angeles, California. Read More Receive RTTR Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Ritter Pharmaceuticals 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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In one recent month, those payments added up to $1,127, without the risks of management decisions or rising mining costs.November 5 at 1:00 AM | Investors Alley (Ad)Kristen RitterSeptember 15, 2023 | health.usnews.comDr. Harold K. RitterJuly 8, 2023 | health.usnews.comDenver Business Journal welcomes new tech reporterJuly 1, 2023 | bizjournals.comJason Ritter and Drew Barrymore's raw conversation on her show may matter more than you thinkApril 10, 2023 | usatoday.comRitter Pharmaceuticals Changing the Game With Lactose Intolerance TreatmentMarch 29, 2023 | thestreet.comSee More Headlines RTTR Stock Analysis - Frequently Asked Questions How were Ritter Pharmaceuticals' earnings last quarter? Ritter Pharmaceuticals Inc (NASDAQ:RTTR) issued its earnings results on Friday, May, 1st. The biotechnology company reported ($0.05) EPS for the quarter, missing the consensus estimate of ($0.04) by $0.01. When did Ritter Pharmaceuticals' stock split? Ritter Pharmaceuticals's stock reverse split before market open on Friday, March 23rd 2018.The 1-10 reverse split was announced on Thursday, March 22nd 2018. The number of shares owned by shareholders was adjusted after the market closes on Thursday, March 22nd 2018. An investor that had 100 shares of stock prior to the reverse split would have 10 shares after the split. When did Ritter Pharmaceuticals IPO? Ritter Pharmaceuticals (RTTR) raised $20 million in an IPO on Wednesday, June 24th 2015. The company issued 4,000,000 shares at a price of $5.00 per share. Aegis Capital Corp and Chardan Capital Markets served as the underwriters for the IPO and Barrington Research was co-manager. What other stocks do shareholders of Ritter Pharmaceuticals own? Based on aggregate information from My MarketBeat watchlists, some other companies that Ritter Pharmaceuticals investors own include Gran Tierra Energy (GTE), American Airlines Group (AAL), APA (APA), Hudson Technologies (HDSN), Vicor (VICR), Archer Daniels Midland (ADM) and Allianz (ALV). Company Calendar Last Earnings5/01/2020Today11/05/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorTechnology Industry Software Sub-IndustryApplication Software Current SymbolNASDAQ:RTTR CIK1460702 Webwww.ritterpharmaceuticals.com Phone310-203-1000FaxN/AEmployees7Year FoundedN/AProfitability EPS (Trailing Twelve Months)N/A Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$10.13 million Net MarginsN/A Pretax MarginN/A Return on EquityN/A Return on Assets-162.05% Debt Debt-to-Equity RatioN/A Current Ratio3.67 Quick Ratio3.67 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$0.10 per share Price / Book13.40Miscellaneous Outstanding Shares46,153,000Free FloatN/AMarket Cap$61.85 million OptionableNot Optionable Beta-0.43 10 Best Stocks to Own in Fall 2026AI spending is reshaping the market, and the opportunity extends far beyond the biggest chipmakers. Discover 10 stocks set to benefit from powerful trends in AI infrastructure, cloud computing, energy, capital returns, and consumer growth this fall.Get This Free Report This page (NASDAQ:RTTR) was last updated on 4/8/2026 by MarketBeat.com Staff. From Our Partners$250,000/Month- How You Can Learn from President TrumpPresident Trump has reportedly collected up to $250,000 a month from a single fund. Now investors can get a...The Oxford Club | SponsoredThe 401k Email 70 Million Investors Might DeleteAn email announcing a new 401k investment option is headed to roughly 70 million inboxes. Most recipients will...Brownstone Research | SponsoredTrump compared today's market to 1929 not once but twicePresident Trump warned of a 1929-style depression if Democrats won control of Congress. On November 3, they di...USA Capital Gold | SponsoredMy public warning after 55 years of watching the marketsDr. Martin D. 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