NASDAQ:RBCN Rubicon Technology (RBCN) Stock Price, News & Analysis $5.72 0.00 (0.00%) As of 10/1/2026 Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitors 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$5.72▼$5.7250-Day Range$5.30▼$6.7052-Week Range$2.55▼$6.70Volume3 shsAverage Volume4,252 shsMarket Capitalization$53.63 millionP/E Ratio30.10Dividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Rubicon Technology, Inc. (NASDAQ:RBCN) is an advanced materials company specializing in monocrystalline sapphire and other specialty crystalline materials. The company produces sapphire-based products designed for demanding optical, industrial, semiconductor, aerospace and defense applications. Its product offerings include sapphire windows, substrates, rods, tubes and other custom-shaped components. These materials are valued for their hardness, chemical resistance, thermal stability and optical performance, making them suitable for use in harsh environments and specialized equipment. Rubicon Technology was founded in 2001 and is headquartered in Bensenville, Illinois. The company serves customers in the United States and international markets, providing engineered materials and components tailored to specific application 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. 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RBCN Stock News HeadlinesRubicon Technology (NASDAQ:RBCN) Shares Cross Above 200-Day Moving Average - Here's WhySeptember 29 at 1:41 AM | americanbankingnews.comJanel Corp Increases Stake in Rubicon TechnologyOctober 14, 2025 | tipranks.comElon Warns "America Will Go Bankrupt". Trump's Plan Inside.National debt just crossed 40 trillion dollars, and Elon Musk says America is 1,000% going to go bankrupt without major changes. As former head of the Department of Government Efficiency under President Trump, Musk saw firsthand how looming spending cuts could rattle markets and squeeze 401ks, IRAs, and TSPs. A preserved IRS provision may help everyday investors shield their retirement savings before the next wave of volatility hits.October 2 at 1:00 AM | American Hartford Gold (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 2026. Since then, RBCN stock has increased by 108.0% and is now trading at $5.7190. When did Rubicon Technology's stock split? Rubicon Technology's stock reverse split on 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 these companies: 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 Today10/02/2026Fiscal Year End12/31/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorTechnology Industry Semiconductors & Semiconductor Equipment Sub-IndustrySemiconductor Materials & Equipment Current SymbolNASDAQ:RBCN CIK1410172 Webwww.rubicontechnology.com Phone(847) 295-7000Fax847-295-7555Employees10Year Founded2001Profitability EPS (Trailing Twelve Months)$1.44 Trailing P/E Ratio30.10 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 / Sales13.81 Cash Flow$0.06 per share Price / Cash Flow89.59 Book Value$0.17 per share Price / Book33.64Miscellaneous Outstanding Shares9,378,000Free Float2,292,000Market Cap$53.63 million OptionableNot Optionable Beta1.44 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 10/2/2026 by MarketBeat.com Staff. From Our PartnersElon Warns "America Will Go Bankrupt". Trump's Plan Inside.National debt just crossed 40 trillion dollars, and Elon Musk says America is 1,000% going to go bankrupt with...American Hartford Gold | SponsoredMILLIONAIRE MASTERCLASS INVITE: AltucherJames Altucher says Elon Musk is preparing an unprecedented project set to surface on December 8th. 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