Clearsign Combustion (NASDAQ:CLIR) and Rudolph Technologies (NYSE:RTEC) are both small-cap computer and technology companies, but which is the better stock? We will compare the two companies based on the strength of their risk, valuation, dividends, analyst recommendations, profitability, institutional ownership and earnings.

Analyst Ratings

This is a summary of recent ratings and recommmendations for Clearsign Combustion and Rudolph Technologies, as provided by

Sell Ratings Hold Ratings Buy Ratings Strong Buy Ratings Rating Score
Clearsign Combustion 0 0 0 0 N/A
Rudolph Technologies 0 0 4 0 3.00

Rudolph Technologies has a consensus price target of $32.25, indicating a potential upside of 59.97%. Given Rudolph Technologies’ higher possible upside, analysts clearly believe Rudolph Technologies is more favorable than Clearsign Combustion.

Insider & Institutional Ownership

12.3% of Clearsign Combustion shares are owned by institutional investors. Comparatively, 93.1% of Rudolph Technologies shares are owned by institutional investors. 5.7% of Clearsign Combustion shares are owned by company insiders. Comparatively, 2.0% of Rudolph Technologies shares are owned by company insiders. Strong institutional ownership is an indication that hedge funds, large money managers and endowments believe a company will outperform the market over the long term.

Earnings and Valuation

This table compares Clearsign Combustion and Rudolph Technologies’ top-line revenue, earnings per share and valuation.

Gross Revenue Price/Sales Ratio Net Income Earnings Per Share Price/Earnings Ratio
Clearsign Combustion $540,000.00 68.13 -$9.68 million N/A N/A
Rudolph Technologies $255.10 million 2.52 $32.90 million $1.04 19.38

Rudolph Technologies has higher revenue and earnings than Clearsign Combustion.

Volatility and Risk

Clearsign Combustion has a beta of -0.03, suggesting that its share price is 103% less volatile than the S&P 500. Comparatively, Rudolph Technologies has a beta of 1.06, suggesting that its share price is 6% more volatile than the S&P 500.


This table compares Clearsign Combustion and Rudolph Technologies’ net margins, return on equity and return on assets.

Net Margins Return on Equity Return on Assets
Clearsign Combustion N/A -87.23% -74.90%
Rudolph Technologies 13.36% 13.13% 11.33%


Rudolph Technologies beats Clearsign Combustion on 9 of the 11 factors compared between the two stocks.

About Clearsign Combustion

ClearSign Combustion Corporation designs and develops technologies to enhance emission and operational performance, energy efficiency, and overall cost-effectiveness of combustion systems in the United States. Its Duplex, Duplex Plug & Play, and Electrodynamic Combustion Control platform technologies enhance the performance of combustion systems in a range of markets, including energy, commercial/industrial boiler, chemical, petrochemical, and power industries. ClearSign Combustion Corporation was founded in 2008 and is headquartered in Seattle, Washington.

About Rudolph Technologies

Rudolph Technologies, Inc. designs, develops, manufactures, and supports process control defect inspection and metrology, advanced packaging lithography, and data analysis systems and software used in microelectronic device manufacturing. The company also offers process and yield management solutions used in wafer processing facilities, and device packaging and test facilities manufacturing through standalone systems for macro-defect inspection, lithography, probe card test and analysis, and transparent and opaque thin film measurements. In addition, it provides spare parts; and software licensing services. The company markets and sells its products to analog, logic, memory, RF, CMOS Image Sensors, MEMs, and flat panel display manufacturers. Rudolph Technologies, Inc. offers its products in the United States, Taiwan, South Korea, Singapore, Austria, Japan, Germany, and China, as well as other European and Asian countries. The company was formerly known as Rudolph Research Corporation. Rudolph Technologies, Inc. was founded in 1940 and is headquartered in Wilmington, Massachusetts.

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