RoyalTek Co (ROCO:3306) Earnings Yield (Joel Greenblatt) %: 1.31% (As of Jun. 2026) — 75% Below Median

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:3306 RoyalTek Co Ltd ROCO:3306
71 GF Score
Price NT$45.00
GF Value NT$48.51
Valuation Fairly Valued
! 3 Warning Signs
View Full Analysis

What is RoyalTek Co Earnings Yield (Joel Greenblatt) %?

RoyalTek Co ROCO:3306 +0.45% 71 Earnings Yield (Joel Greenblatt) % is 1.31% as of Jun. 2026, which is 75% below its 10-year median of 5.25. GuruFocus rates ROCO:3306 with a GF Score™ of 71/100 and a GF Value™ of NT$48.51 (Fairly Valued). The stock has 3 warning signs investors should review. Among 2,490 Hardware companies, RoyalTek Co ranks worse than 57.99% on this metric.

RoyalTek Co's Enterprise Value for the quarter that ended in Jun. 2026 was NT$1,849 Mil. RoyalTek Co's EBIT for the trailing twelve months (TTM) ended in Jun. 2026 was NT$24 Mil. RoyalTek Co's Earnings Yield (Joel Greenblatt) for the quarter that ended in Jun. 2026 was 1.31%.

The historical rank and industry rank for RoyalTek Co's Earnings Yield (Joel Greenblatt) % or its related term are showing as below:

ROCO:3306' s Earnings Yield (Joel Greenblatt) % Range Over the Past 10 Years
Min: -54.02   Med: 5.25   Max: 145.89
Current: 1.53

During the past 13 years, the highest Earnings Yield (Joel Greenblatt) of RoyalTek Co was 145.89%. The lowest was -54.02%. And the median was 5.25%.

ROCO:3306's Earnings Yield (Joel Greenblatt) % is ranked worse than
57.99% of 2490 companies
in the Hardware industry
Industry Median: 2.525 vs ROCO:3306: 1.53

Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.

A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %. RoyalTek Co's Forward Rate of Return (Yacktman) % for the quarter that ended in Jun. 2026 was 22.35%. The Forward Rate of Return uses the normalized Free Cash Flow of the past five years, and considers growth. The forward rate of return can be thought of as the return that investors buying the stock today can expect from it in the future.


RoyalTek Co  (ROCO:3306) Earnings Yield (Joel Greenblatt) % Explanation

Joel Greenblatt defines the earnings yield using the above equation because it more accurately reflects the company's profitability relative to its stock price. Items like interest payment and tax etc. are not directly related to the company's operational profitability.

Enterprise Value instead of market cap (share price) is used in the calculation because it is the real price stock and bond investors together pay for the company.


Be Aware

Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.

Forward Rate of Return (Yacktman) % based on Don Yacktman's definition is a better measure of the expected rate of return for a stock.


RoyalTek Co Earnings Yield (Joel Greenblatt) % Related Terms


RoyalTek Co Earnings Yield (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for RoyalTek Co's Earnings Yield (Joel Greenblatt) % 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.

RoyalTek Co Earnings Yield (Joel Greenblatt) % Chart

RoyalTek Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Earnings Yield (Joel Greenblatt) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.67 3.08 4.18 6.22 5.07

RoyalTek Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Earnings Yield (Joel Greenblatt) % 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 9.86 4.67 5.10 6.05 1.31

ROCO:3306 vs GRMN, COHR, KEYS: Earnings Yield (Joel Greenblatt) % Comparison

For the Scientific & Technical Instruments subindustry, RoyalTek Co's Earnings Yield (Joel Greenblatt) %, along with its competitors' market caps and Earnings Yield (Joel Greenblatt) % 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.


RoyalTek Co Earnings Yield (Joel Greenblatt) % vs Hardware Industry

For the Hardware industry and Technology sector, RoyalTek Co's Earnings Yield (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where RoyalTek Co's Earnings Yield (Joel Greenblatt) % falls into.


ROCO:3306
71GF Score
RoyalTek Co Ltd ROCO:3306
Earnings Yield (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

RoyalTek Co Earnings Yield (Joel Greenblatt) % Calculation

In his book, The Little That Beat the Market, hedge fund manager Joel Greenblatt defines Earnings Yield as operating income divided by enterprise value.

RoyalTek Cos Earnings Yield (Joel Greenblatt) for the fiscal year that ended in Dec. 2025 is calculated as

Earnings Yield (Joel Greenblatt)=EBIT/Enterprise Value
=99.808/1970.0642
=5.07 %

RoyalTek Co's EBIT for the trailing twelve months (TTM) ended in Jun. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$24 Mil.


What does a Earnings Yield (Joel Greenblatt) % of 1.31% mean?
RoyalTek Co (ROCO:3306) has a Earnings Yield (Joel Greenblatt) % of 1.31% as of Jun. 2026. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on RoyalTek Co and its competitors. This is 75% below median its historical median of 5.25. According to the industry distribution chart, RoyalTek Co ranks #1444 out of 2490 companies in the Hardware industry, placing it in the top 58%.
Is RoyalTek Co's Earnings Yield (Joel Greenblatt) % too high?
RoyalTek Co's current Earnings Yield (Joel Greenblatt) % of 1.31% is 75% below median its 10-year median of 5.25. The Hardware industry median Earnings Yield (Joel Greenblatt) % is 2.53. RoyalTek Co's value of 1.31% is 48.1% below this industry median. Based on the distribution chart, RoyalTek Co ranks #1444 out of 2490 companies in the Hardware industry, which is below the industry midpoint. Overall, RoyalTek Co has a GF Score™ of 71/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does RoyalTek Co's Earnings Yield (Joel Greenblatt) % compare to GRMN and COHR?
According to the Hardware industry distribution chart, RoyalTek Co ranks #1444 out of 2490 companies for Earnings Yield (Joel Greenblatt) %. This places RoyalTek Co in the lower half of its industry. The industry median Earnings Yield (Joel Greenblatt) % is 2.53. RoyalTek Co's value of 1.31% is 48.1% below this benchmark. While the company's 10-year median is 5.25 vs. the industry median of 2.53, RoyalTek Co has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Earnings Yield (Joel Greenblatt) % for a Hardware company?
The median Earnings Yield (Joel Greenblatt) % among Hardware companies is 2.53, based on 2,490 companies in the industry. Companies in the top quartile (top 25%) have a Earnings Yield (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, Earnings Yield (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. RoyalTek Co's current Earnings Yield (Joel Greenblatt) % of 1.31% is 48.1% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Earnings Yield (Joel Greenblatt) % mean?
A high Earnings Yield (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on RoyalTek Co and its competitors. For the Hardware industry, the median Earnings Yield (Joel Greenblatt) % is 2.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. RoyalTek Co's current Earnings Yield (Joel Greenblatt) % is 1.31%, which is 75% below median its own 10-year median of 5.25. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is RoyalTek Co stock overvalued right now?
Based on GuruFocus' analysis, RoyalTek Co (ROCO:3306) is currently considered Fairly Valued. The stock's GF Value™ is NT$48.51, compared to a current price of NT$45.00 — trading 7.2% below its estimated fair value. The current Earnings Yield (Joel Greenblatt) % is 1.31%, which is 75% below median its 10-year median of 5.25 and 48.1% below the Hardware industry median of 2.53. RoyalTek Co's overall GF Score™ is 71/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Yield (Joel Greenblatt) % calculated?
Earnings Yield (Joel Greenblatt) % is calculated from a company's financial statements. For RoyalTek Co (ROCO:3306), the current Earnings Yield (Joel Greenblatt) % is 1.31% as of Jun. 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 RoyalTek Co (ROCO:3306) Overvalued in 2026?

Based on GuruFocus' analysis, RoyalTek Co stock appears to be undervalued. The current stock price of NT$45.00 is trading 7.2% below its estimated GF Value™ of NT$48.51. GuruFocus considers RoyalTek Co to be Fairly Valued.

Key valuation signals for ROCO:3306:

  • Earnings Yield (Joel Greenblatt) %: 1.31% (75% below median its 10-year median of 5.25)
  • GF Value™: NT$48.51 vs. price of NT$45.00 (7.2% below fair value)
  • GF Score™: 71/100 with 3 warning signs
  • Industry Position: 48.1% below the Hardware median (#1444 of 2490)

No single metric tells the full story. See the ROCO:3306 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


RoyalTek Co Business Description

Address 4F, No 188 Wen Hwa 2nd Road, 8th Floor, Kuei Shan, Taoyuan, TWN
RoyalTek Co Ltd is a Taiwan-based company engages in the production and distribution of global positioning system (GPS) products. It offers audio video navigation system (AVN), portable navigation device (PND), advanced driving assistance system (ADAS), driving video recorder (DVR), electronic accessories for automobiles and engine board for GPS.
71GF Score

Get the complete analysis for ROCO:3306

Earnings Yield (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$45.00
Price
NT$48.51
GF Value