Rubicon Technology (RBCN) Stock Price, News & Analysis

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.

Key Stats

• Today's Range: $4.18 to $4.21
• 50-Day Range: $3.26 to $4.37
• 52-Week Range: $1.23 to $5.51
• Volume: 495 shs
• Average Volume: 3,739 shs
• Market Capitalization: $9.95 million
• P/E Ratio: 22.00
• Dividend Yield: N/A
• Price Target: N/A
• Consensus Rating: N/A

Rubicon Technology Stock Analysis - MarketRank™

Rubicon Technology scored higher than 7% of companies evaluated by MarketBeat, and ranked 640th out of 660 stocks in the computer and technology sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation.

Analyst's Opinion

• Score: N/A
• Analyst Rating: N/A

Consensus Rating

There is not enough analysis data for Rubicon Technology.

Earnings and Valuation

• Score: 1.3 / 5
• Proj. Earnings Growth: N/A

Price to Earnings Ratio vs. the Market

The P/E ratio of Rubicon Technology is 22.16, which means that it is trading at a less expensive P/E ratio than the market average P/E ratio of about 79.14.

Price to Earnings Ratio vs. Sector

The P/E ratio of Rubicon Technology is 22.16, which means that it is trading at a less expensive P/E ratio than the Computer and Technology sector average P/E ratio of about 730.36.

Price to Book Value per Share Ratio

Rubicon Technology has a P/B Ratio of 24.76. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.

Short Interest

• Score: 3.0 / 5
• Short Interest Level: Healthy

Percentage of Shares Shorted

0.51% of the outstanding shares of Rubicon Technology have been sold short.

Short Interest Ratio / Days to Cover

Rubicon Technology has a short interest ratio ("days to cover") of 2, which is generally considered an acceptable ratio of short interest to trading volume.

Change versus previous month

Short interest in Rubicon Technology has recently increased by 3.39%, indicating that investor sentiment is decreasing.

Dividend

• Score: 0.0 / 5
• Dividend Strength: Weak

Dividend Yield

Rubicon Technology does not currently pay a dividend.

Dividend Growth

Rubicon Technology does not have a long track record of dividend growth.

Sustainability and ESG

• Score: N/A
• Environmental Score: N/A

Percentage of Shares Shorted

0.51% of the outstanding shares of Rubicon Technology have been sold short.

Short Interest Ratio / Days to Cover

Rubicon Technology has a short interest ratio ("days to cover") of 2, which is generally considered an acceptable ratio of short interest to trading volume.

Change versus previous month

Short interest in Rubicon Technology has recently increased by 3.39%, indicating that investor sentiment is decreasing.

News and Social Media

• Score: 0.0 / 5
• News Sentiment: N/A

MarketBeat Follows

Only 1 people have added Rubicon Technology to their MarketBeat watchlist in the last 30 days. This is a decrease of 0% compared to the previous 30 days.

Company Ownership

• Score: 0.0 / 5
• Insider Trading: N/A

Insider Buying vs. Insider Selling

In the past three months, Rubicon Technology insiders have not sold or bought any company stock.

Percentage Held by Insiders

Only 3.60% of the stock of Rubicon Technology is held by insiders.

Percentage Held by Institutions

Only 0.01% of the stock of Rubicon Technology is held by institutions.

RBCN Stock Analysis - Frequently Asked Questions

How have RBCN shares performed this year?

Rubicon Technology's stock was trading at $1.65 at the beginning of 2025. Since then, RBCN shares have increased by 155.2% and is now trading at $4.21.

When did Rubicon Technology's stock split?

Shares of Rubicon Technology 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 market closes 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?

The following companies are subsidiaries of Rubicon Technology: 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), NeoPhotonics (NPTN) and Ritter Pharmaceuticals (RTTR).

Company Calendar

• Today: 10/24/2025
• Fiscal Year End: 12/31/2025

Industry, Sector and Symbol

• Stock Exchange: NASDAQ
• Sector: Computer and Technology
• Industry: Electronic parts & equipment, not elsewhere classified
• Sub-Industry: Semiconductor Equipment
• Current Symbol: NASDAQ:RBCN
• CIK: 1410172
• Web: www.rubicontechnology.com
• Phone: (847) 295-7000
• Fax: 847-295-7555
• Employees: 10
• Year Founded: 2001

Profitability

• EPS (Trailing Twelve Months): ($0.17)
• Trailing P/E Ratio: 22.37
• Forward P/E Ratio: N/A
• P/E Growth: N/A
• Net 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 Ratio: N/A
• Current Ratio: 1.51
• Quick Ratio: 1.38

Sales & Book Value

• Annual Sales: $3.88 million
• Price / Sales: 2.60
• Cash Flow: $0.05 per share
• Price / Cash Flow: 89.59
• Book Value: $0.17 per share
• Price / Book: 25.00

Miscellaneous

• Outstanding Shares: 2,380,000
• Free Float: 2,292,000
• Market Cap: $10.12 million
• Optionable: Not Optionable
• Beta: 1.01