E&R Engineering (ROCO:8027) Total Operating Expense: NT$711 Mil (TTM As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:8027 E&R Engineering Corp ROCO:8027
46 GF Score
Price NT$215.50
GF Value NT$102.41
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is E&R Engineering Total Operating Expense?

E&R Engineering ROCO:8027 -9.83% 46 Total Operating Expense is NT$711 Mil as of Dec. 2025. GuruFocus rates ROCO:8027 with a GF Score™ of 46/100 and a GF Value™ of NT$102.41 (Significantly Overvalued). The stock has 3 warning signs investors should review.

E&R Engineering's Total Operating Expense for the three months ended in Dec. 2025 was NT$187 Mil. E&R Engineering's Total Operating Expense for the trailing twelve months (TTM) ended in Dec. 2025 was NT$711 Mil.

E&R Engineering Total Operating Expense Related Terms

E&R Engineering Total Operating Expense Historical Data

* Premium members only.

The historical data trend for E&R Engineering's Total Operating Expense 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 Total Operating Expense Chart

E&R Engineering Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Total Operating Expense
Get a 7-Day Free Trial Premium Member Only Premium Member Only 547.68 712.63 601.49 722.68 710.54

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
Total Operating Expense 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 194.03 172.25 176.08 174.90 187.30
ROCO:8027
46GF Score
E&R Engineering Corp ROCO:8027
Total Operating Expense is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

E&R Engineering Total Operating Expense Calculation

Total Operating Expense is the primary recurring expense associated with central operations that are incurred in order to generate sales.


Total Operating Expense for the trailing twelve months (TTM) ended in Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$711 Mil.

* 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.

What does a Total Operating Expense of NT$711 Mil mean?
E&R Engineering (ROCO:8027) has a Total Operating Expense of NT$711 Mil as of Dec. 2025. Total operating expense is the primary recurring expense associated with central operations. View historical data on E&R Engineering and its competitors.
Is E&R Engineering's Total Operating Expense too high?
E&R Engineering's current Total Operating Expense is NT$711 Mil. Overall, E&R Engineering has a GF Score™ of 46/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does E&R Engineering's Total Operating Expense compare to GEV and ETN?
E&R Engineering's Total Operating Expense of NT$711 Mil 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 Total Operating Expense for an Industrial Products company?
A good Total Operating Expense depends on the Industrial Products industry context. However, Total Operating Expense 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 Total Operating Expense mean?
A high Total Operating Expense can signal that a stock is expensive relative to its fundamentals. Total operating expense is the primary recurring expense associated with central operations. View historical data on E&R Engineering and its competitors. E&R Engineering's current Total Operating Expense is NT$711 Mil. 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$102.41, compared to a current price of NT$215.50 — trading 110.4% above its estimated fair value. The current Total Operating Expense is NT$711 Mil. E&R Engineering's overall GF Score™ is 46/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Total Operating Expense calculated?
Total Operating Expense is calculated from a company's financial statements. For E&R Engineering (ROCO:8027), the current Total Operating Expense is NT$711 Mil as of Dec. 2025. 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$215.50 is trading 110.4% above its estimated GF Value™ of NT$102.41. GuruFocus considers E&R Engineering to be Significantly Overvalued.

Key valuation signals for ROCO:8027:

  • Total Operating Expense: NT$711 Mil
  • GF Value™: NT$102.41 vs. price of NT$215.50 (110.4% above fair value)
  • GF Score™: 46/100 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.
46GF Score

Get the complete analysis for ROCO:8027

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

NT$215.50
Price
NT$102.41
GF Value