This company has been marked as potentially delisted and may not be actively trading. NASDAQ:OPTR (OPTR) (OPTR) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisBuy This Stock About (OPTR) Stock (NASDAQ:OPTR) 30 days 90 days 365 days Advanced Chart Get (OPTR) alerts:Sign Up Key Stats Today's Range N/A50-Day Range N/A52-Week Range N/AVolumeN/AAverage VolumeN/AMarket CapitalizationN/AP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company OverviewOptimer Pharmaceuticals, Inc. (Optimer) is a biopharmaceutical company focused on developing and commercializing hospital specialty products. The Company's development is focused on products that treat gastrointestinal infections and related diseases. Its two products OPT-822/821 and CEM-101 (OP-1068) are in clinical development. Optimer's products include Fidaxomicin and Solithromycin under anti-infectives, and OPT-822/821 under other therapeutic areas. In January 2011, its majority owned subsidiary, Optimer Biotechnology, Inc. (OBI) conducted a Phase 2/3 clinical, trial to evaluate OPT-822/821for the treatment of metastatic breast cancer. On May 27, 2011, the United States Food and Drug Administration (FDA) approved DIFICID(fidaxomicin) tablets, its antibacterial drug for the treatment of adult patients with Clostridium difficile-associated diarrhea (CDAD). In October 2013, Cubist Pharmaceuticals, Inc announced that it has completed its acquisition of Optimer Pharmaceuticals, Inc.Read More… Receive OPTR Stock News and Ratings via Email Sign-up to receive the latest news and ratings for (OPTR) and its competitors with MarketBeat's FREE daily newsletter. Email Address OPTR Stock News HeadlinesIBFD launches the 2023 Yearbook on Taxpayers’ RightsMay 17, 2024 | finance.yahoo.comInternational Bureau of Fiscal Documentation (IBFD): IBFD launches the 2023 Yearbook on Taxpayers' RightsMay 17, 2024 | finanznachrichten.deWhen This Happens, You Don’t Wait. You Act.This same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in crypto. Now it’s back, and the smart money is already positioning. A free training reveals the step-by-step strategy and altcoin picks designed to help you capitalize on the next wave.June 2, 2025 | Crypto Swap Profits (Ad)Optimer Pharmaceuticals Inc (OPTR)May 19, 2023 | investing.comIBFD launches the 2022 Yearbook on Taxpayers’ RightsMay 17, 2023 | uk.finance.yahoo.comInternational Bureau of Fiscal Documentation (IBFD): IBFD launches the 2022 Yearbook on Taxpayers' RightsMay 17, 2023 | finanznachrichten.deSee More Headlines OPTR Stock Analysis - Frequently Asked Questions What other stocks do shareholders of (OPTR) own? Based on aggregate information from My MarketBeat watchlists, some other companies that (OPTR) investors own include Geron (GERN), Glacier Bancorp (GBCI), EPIRUS Biopharmaceuticals (EPRSQ), 8X8 (EGHT), Corner Growth Acquisition (COOL), Compass Diversified (CODI) and Cello Health plc (CLL.L) (CLL). Industry, Sector and Symbol Stock ExchangeNASDAQ SectorN/A Industry N/A Sub-IndustryPharmaceuticals Current SymbolNASDAQ:OPTR CIK1142576 Webwww.optimerpharma.com Phone+1-201-3338819FaxN/AEmployeesN/AYear FoundedN/AProfitability EPS (Most Recent Fiscal Year)N/A Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet IncomeN/A Net MarginsN/A Pretax MarginN/A Return on EquityN/A Return on AssetsN/A Debt Debt-to-Equity RatioN/A Current RatioN/A Quick RatioN/A Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book ValueN/A Price / BookN/AMiscellaneous Outstanding SharesN/AFree FloatN/AMarket CapN/A OptionableNot Optionable BetaN/A These 7 Stocks Will Be Magnificent in 2025Discover the next wave of investment opportunities with our report, 7 Stocks That Will Be Magnificent in 2025. Explore companies poised to replicate the growth, innovation, and value creation of the tech giants dominating today's markets.Get This Free Report This page (NASDAQ:OPTR) was last updated on 6/2/2025 by MarketBeat.com Staff From Our PartnersWatch This Robotics Demo Before July 23rdJeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... ...Brownstone Research | SponsoredTrump’s treachery Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | SponsoredDalio heeds Buffett’s warning… [$319 million stake in gold]Dalio bought a gold ETF… I don’t recommend that for the average retail investor. The real upside is in profita...Golden Portfolio | SponsoredCollect $7k per month from Tesla’s SECRET dividendTesla doesn't pay a traditional dividend.... But I just discovered a secret backdoor to collect a secret 69...Investors Alley | SponsoredWhy July 22nd Could Mean Big Changes for Social SecurityIn a stunning move, President Trump has authorized an AI-led transformation of federal agencies, including Soc...Altimetry | SponsoredAn AI run of epic proportions is only getting startedI just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history.Paradigm Press | SponsoredElon’s backup plan for AIElon knows the future isn’t about smarter AI — it’s about powering it. And this new technology is quietly b...True Market Insiders | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding (OPTR) Please log in to your account or sign up in order to add this asset to your watchlist. Share (OPTR) With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.