E&R Engineering (ROCO:8027) Beta: -0.2134 (As of Jul. 17, 2026)

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Director of Data and Quant Analytics at GuruFocus
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Charlie Tian
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ROCO:8027 E&R Engineering Corp ROCO:8027
40 GF Score
Price NT$239.00
GF Value NT$102.36
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is E&R Engineering Beta?

E&R Engineering ROCO:8027 -2.05% 40 Beta is -0.2134 as of Jul. 17, 2026. GuruFocus rates ROCO:8027 with a GF Score™ of 40/100 and a GF Value™ of NT$102.36 (Significantly Overvalued). The stock has 3 warning signs investors should review.

Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. As of today (2026-07-17), E&R Engineering's Beta is -0.2134.


E&R Engineering  (ROCO:8027) Beta Explanation

Beta is a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole. We usually compare beta to 1. A beta of 1 indicates that the security's price will move with the market. A beta of less than 1 means that the security will be less volatile than the market. A beta of greater than 1 indicates that the security's price will be more volatile than the market.

Beta is primarily used in the Capital Asset Pricing Model (CAPM) to calculate the Cost of Equity, which can be used in the calculation of WACC %. The formula of Cost of Equity is:
Cost of Equity = Risk-Free Rate of Return + Beta of Asset * (Expected Return of the Market - Risk-Free Rate of Return)


E&R Engineering Beta Related Terms


E&R Engineering Beta Historical Data

* Premium members only.

The historical data trend for E&R Engineering's Beta can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

E&R Engineering Beta Chart

E&R Engineering Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Beta
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.46 1.58 1.09 1.22 0.00

E&R Engineering Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Beta Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1.22 0.00 0.00 0.00 0.00

ROCO:8027 vs GEV, ETN, PH: Beta Comparison

For the Specialty Industrial Machinery subindustry, E&R Engineering's Beta, along with its competitors' market caps and Beta data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


E&R Engineering Beta vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, E&R Engineering's Beta distribution charts can be found below:

* The bar in red indicates where E&R Engineering's Beta falls into.


ROCO:8027
40GF Score
E&R Engineering Corp ROCO:8027
Beta is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

E&R Engineering Beta Calculation

Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. A stock's beta can be calculated by dividing the product of the covariance of the individual stock's returns and the market's returns by the variance of the market's returns over a specified period. Basically, GuruFocus uses the returns calculated over three-year period.

Frequently Asked Questions Learn more about Beta →
What does a Beta of -0.2134 mean?
E&R Engineering (ROCO:8027) has a Beta of -0.2134 as of Jul. 17, 2026. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for E&R Engineering and its competitors.
Is E&R Engineering's Beta too high?
E&R Engineering's current Beta is -0.2134. Overall, E&R Engineering has a GF Score™ of 40/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does E&R Engineering's Beta compare to GEV and ETN?
E&R Engineering's Beta of -0.2134 can be compared against companies in the Industrial Products industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Beta for an Industrial Products company?
A good Beta depends on the Industrial Products industry context. However, Beta should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Beta mean?
A high Beta can signal that a stock is expensive relative to its fundamentals. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for E&R Engineering and its competitors. E&R Engineering's current Beta is -0.2134. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is E&R Engineering stock overvalued right now?
Based on GuruFocus' analysis, E&R Engineering (ROCO:8027) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$102.36, compared to a current price of NT$239.00 — trading 133.5% above its estimated fair value. The current Beta is -0.2134. E&R Engineering's overall GF Score™ is 40/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Beta calculated?
Beta is calculated from a company's financial statements. For E&R Engineering (ROCO:8027), the current Beta is -0.2134 as of Jul. 17, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is E&R Engineering (ROCO:8027) Overvalued in 2026?

Based on GuruFocus' analysis, E&R Engineering stock appears to be overvalued. The current stock price of NT$239.00 is trading 133.5% above its estimated GF Value™ of NT$102.36. GuruFocus considers E&R Engineering to be Significantly Overvalued.

Key valuation signals for ROCO:8027:

  • Beta: -0.2134
  • GF Value™: NT$102.36 vs. price of NT$239.00 (133.5% above fair value)
  • GF Score™: 40/100 with 3 warning signs

No single metric tells the full story. See the ROCO:8027 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


E&R Engineering Business Description

Address Hengshan Road, No. 61, Yanchao District, Kaohsiung, TWN, 824
E&R Engineering Corp engages mainly in the planning, designing, manufacturing, installing, and selling of automatic machines, related components, computer software, and pollution control equipment. Its main product offerings include laser and plasma equipment for semiconductor, LED, and passive component industries; laboratory testing equipment, flexible printed circuit equipment, and semiconductor packaging solutions. The Group operates in the following reportable segments: Automation Equipment, which generates the maximum revenue, Flexible Printed Circuit (FPC), Semiconductor Packaging Materials, and Others. Geographically, it generates maximum revenue from Taiwan, and the rest from Hong Kong and Mainland China, Southeast Asia, America, Europe, and other regions.
40GF Score

Get the complete analysis for ROCO:8027

Beta is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$239.00
Price
NT$102.36
GF Value