NASDAQ:RBCN Rubicon Technology (RBCN) Stock Price, News & Analysis $5.47 +0.02 (+0.37%) As of 03:44 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitorsSEC FilingsTrendsBuy This Stock About Rubicon Technology Stock (NASDAQ:RBCN) 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 Rubicon Technology alerts:Sign Up Key Stats Today's Range$5.47▼$5.4750-Day Range$3.70▼$5.8052-Week Range$2.03▼$5.84Volume168 shsAverage Volume5,222 shsMarket Capitalization$51.30 millionP/E Ratio28.79Dividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Rubicon Technology, Inc. (NASDAQ: RBCN) is a U.S.-based manufacturer of engineered sapphire materials, specializing in the production of single-crystal sapphire substrates and components. Utilizing proprietary flame-fusion processes, the company produces high-purity sapphire products designed for a variety of industrial and technology applications. Its product portfolio includes wafer substrates for LED and semiconductor testing, precision optical windows, and robust components for high-pressure or high-temperature environments. Incorporated in 2002 and headquartered in Michigan, Rubicon Technology operates one of the few domestic facilities dedicated to synthetic sapphire production. Since its founding, the company has focused on optimizing crystal growth and fabrication techniques to deliver consistent quality, yield and throughput, catering to sectors that demand stringent material specifications and reliable supply chains. Rubicon Technology’s sapphire products serve a diverse global customer base across North America, Asia-Pacific and Europe. Key application areas include LED lighting and displays, semiconductor manufacturing and test equipment, optical communications, and industrial sensor technologies. The company maintains an active research and development effort aimed at expanding its product offerings in response to evolving end-market requirements.AI Generated. May Contain Errors. Read More Receive RBCN Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Rubicon Technology 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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RBCN Stock News HeadlinesRubicon Technology (NASDAQ:RBCN) Shares Cross Above 200-Day Moving Average - Should You Sell?July 3, 2026 | americanbankingnews.comJanel Corp Increases Stake in Rubicon TechnologyOctober 14, 2025 | tipranks.comTrump’s secret China dealTrump just returned from Beijing with the most powerful business delegation in American history - Elon Musk, Jensen Huang, Tim Cook, and the CEOs of BlackRock, Goldman Sachs, and CitiBank. The media covered the handshakes. But what was really being negotiated behind closed doors? Porter Stansberry has connected the Beijing trip to a landmark pact signed by 13 nations in Washington - a pact designed to cut China out of a $3 trillion investment wave tied to the most critical resource of the 21st century. His new documentary exposes the five assets at the center of it all.July 10 at 1:00 AM | Porter & Company (Ad)Rubicon Technology, Inc. completes acquisition of Janel Group LLCOctober 14, 2025 | prnewswire.comJanel’s Charter Amendment Approved by ShareholdersAugust 22, 2025 | tipranks.comRubicon Technology (RBCN) to Acquire Janel Group in $33.25 Million DealAugust 21, 2025 | gurufocus.comRubicon Technology to acquire Janel Group for $4.75 per shareAugust 21, 2025 | msn.comRubicon Technology, Inc. to acquire Janel Group LLC | RBCN Stock NewsAugust 20, 2025 | gurufocus.comSee More Headlines RBCN Stock Analysis - Frequently Asked Questions How have RBCN shares performed this year? Rubicon Technology's stock was trading at $2.75 at the beginning of the year. Since then, RBCN shares have increased by 98.2% and is now trading at $5.45. When did Rubicon Technology's stock split? Rubicon Technology's stock reverse split on the morning of Friday, May 5th 2017.The 1-10 reverse split was announced on Thursday, May 4th 2017. The number of shares owned by shareholders was adjusted after the closing bell on Thursday, May 4th 2017. An investor that had 100 shares of stock prior to the reverse split would have 10 shares after the split. Does Rubicon Technology have any subsidiaries? Rubicon Technology subsidiaries include Rubicon DTP LLC, Rubicon Technology BP LLC, and Rubicon Technology Worldwide LLC. How do I buy shares of Rubicon Technology? Shares of RBCN 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 Rubicon Technology own? Based on aggregate information from My MarketBeat watchlists, some other companies that Rubicon Technology investors own include Ballard Power Systems (BLDP), Six Flags Entertainment (FUN), Actinium Pharmaceuticals (ATNM), Groupon (GRPN), Ritter Pharmaceuticals (RTTR). Company Calendar Today7/10/2026Fiscal Year End12/31/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorComputer and Technology Industry Electronic parts & equipment, not elsewhere classified Sub-IndustrySemiconductor Equipment Current SymbolNASDAQ:RBCN CIK1410172 Webwww.rubicontechnology.com Phone(847) 295-7000Fax847-295-7555Employees10Year Founded2001Profitability EPS (Trailing Twelve Months)$0.11 Trailing P/E Ratio28.79 Forward P/E RatioN/A P/E GrowthN/ANet Income-$10 thousand Net Margins-29.90% Pretax Margin-29.84% Return on Equity-122.29% Return on Assets-47.56% Debt Debt-to-Equity RatioN/A Current Ratio1.51 Quick Ratio1.38 Sales & Book Value Annual Sales$3.88 million Price / Sales13.21 Cash Flow$0.06 per share Price / Cash Flow89.59 Book Value$0.17 per share Price / Book32.18Miscellaneous Outstanding Shares9,378,000Free Float2,292,000Market Cap$51.30 million OptionableNot Optionable Beta1.39 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. See which companies are preparing to go public and why investors are watching closely.Get This Free Report This page (NASDAQ:RBCN) was last updated on 7/10/2026 by MarketBeat.com Staff. From Our PartnersTrump's gold order: the announcement they won't put on the front pageOn August 15, 1971, Nixon interrupted prime-time television and ended the gold standard in 15 minutes - no deb...Reagan Gold Group | SponsoredBuy this stock todayMarc Chaikin, founder of Chaikin Analytics, is sharing a strategy he calls 'Sell This, Buy That' - a way to mo...Chaikin Analytics | SponsoredFrom the man who predicted 2008 crash…Porter Stansberry, founder of one of the largest financial research firms in the world, says he's breaking the...Porter & Company | SponsoredRay Dalio: Buy Gold. 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