Grand Green Energy (ROCO:6639) Quality Rank

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:6639 Grand Green Energy Corp ROCO:6639
52 GF Score
Price NT$4.30
GF Value NT$4.27
Valuation Fairly Valued
! 4 Warning Signs
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What is Grand Green Energy Quality Rank?

The Quality Rank measures the business quality of a company relative to other companies. It is ranked based on the strength of the balance sheet, as well as the profitability and growth of the business. The ranked companies are split in equal numbers and then ranked from 1 to 10, with 10 being the highest.

The rank of balance sheet (30%)

The rank of balance sheet is done through the ranking of:
  • Interest coverage
  • Zscore
  • Debt to revenue
  • Equity to asset
  • Cash to debt

The rank of Profitability (70%)

The ranking of Profitability is done by ranking:
  • Operating margin mean rank (10-year mean average profit margine)
  • Operating margin growth rank
  • Fscore
  • Predictability rank
  • Revenue growth rank (5 year), when the growth is higher than 25%, set it as 25%
  • Num of year profit (number of years that is profitable within the last 10 years)
  • ROIC median (10-year median of ROIC)

Grand Green Energy Quality Rank Related Terms

ROCO:6639
52GF Score
Grand Green Energy Corp ROCO:6639
Quality Rank is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Is Grand Green Energy (ROCO:6639) Overvalued in 2026?

Based on GuruFocus' analysis, Grand Green Energy stock appears to be overvalued. The current stock price of NT$4.30 is trading 0.7% above its estimated GF Value™ of NT$4.27. GuruFocus considers Grand Green Energy to be Fairly Valued.

Key valuation signals for ROCO:6639:

  • Quality Rank:
  • GF Value™: NT$4.27 vs. price of NT$4.30 (0.7% above fair value)
  • GF Score™: 52/100 with 4 warning signs

No single metric tells the full story. See the ROCO:6639 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Grand Green Energy Business Description

Address No.192, Jinshan Street, Yangmei District, Taoyuan City, TWN, 326
Grand Green Energy Corp is mainly engaged in the development and sale of thermal energy supply system and other thermal equipment. The company caters to textile, food, chemical, and paper industry. It also offers air pollution emission equipment.
52GF Score

Get the complete analysis for ROCO:6639

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

NT$4.30
Price
NT$4.27
GF Value