Sunflex Technology (ROCO:3390) Earnings Yield %: N/A% (As of Jul. 16, 2026)

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:3390 Sunflex Technology Corp ROCO:3390
63 GF Score
Price NT$26.10
GF Value NT$19.94
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is Sunflex Technology Earnings Yield %?

Sunflex Technology ROCO:3390 +1.95% 63 Earnings Yield % is N/A% as of Jul. 16, 2026. GuruFocus rates ROCO:3390 with a GF Score™ of 63/100 and a GF Value™ of NT$19.94 (Significantly Overvalued). The stock has 5 warning signs investors should review.

The earnings yield is an indication of how much return shareholders' investment in the company earned over the past 12 months. The higher the earnings yield is, the better.

As of today (2026-07-16), the stock price of Sunflex Technology is NT$26.10. Sunflex Technology's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$-0.51. Therefore, Sunflex Technology's earnings yield of today is N/A%.

The earnings yield does not consider the growth of the business. A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %. Sunflex Technology's Forward Rate of Return (Yacktman) % for the quarter that ended in Dec. 2025 was 0.00%. 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.


Sunflex Technology  (ROCO:3390) Earnings Yield % Explanation

If the P/E ratio is an indication of how many years it takes for the company to earn back the stock price shareholders pay to buy the shares, the earnings yield is an indication of how much return shareholders' investment in the company earned over the past 12 months. The higher the earnings yield is, the better.

If a company loses money, the earnings yield is negative. This gives a more straightforward indication that the company is losing money. This is an advantage of using earnings yield instead of the P/E ratio in valuation. For valuation purposes, the P/B Ratio and the P/S Ratio should be used for companies that are losing money.

Like the P/E ratio, the earnings yield can be used to compare investments in different industries. It can even be used to compare the attractiveness of different asset classes such as bonds and cash. Of course, the earnings yield should not be the only factor in deciding which asset classes to invest.

Also similar to the P/E ratio, the earnings yield does not consider the growth of the business. A growing company with the same earnings yield should be more attractive than a company that has the same earnings yield but does not grow.

A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %.

Be Aware

Just like the P/E Ratio, non-recurring items such as selling part of the business, selling a previous investment, etc., can affect earnings yield dramatically. The earning yield is also a poor indication for cyclical companies. When a cyclical stock has a high earnings yield it is usually at the peak of its cycle.


Sunflex Technology Earnings Yield % Related Terms

ROCO:3390
63GF Score
Sunflex Technology Corp ROCO:3390
Earnings Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sunflex Technology Earnings Yield % Calculation

Earnings yield is the reciprocal of the P/E Ratio.

Sunflex Technology's Earnings Yield for today is calculated as

Earnings Yield=Earnings per Share (Diluted) (TTM)/Share Price
=-0.510/26.10
=N/A %

Sunflex Technology's Earnings per Share (Diluted) 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$-0.510 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.

It can also be calculated from the numbers for the whole company:

Earnings Yield=Net Income /Market Cap

The earnings in the calculation is the Trailing Twelve Months earnings.

Frequently Asked Questions Learn more about Earnings Yield % →
What does a Earnings Yield % of N/A% mean?
Sunflex Technology (ROCO:3390) has a Earnings Yield % of N/A% as of Jul. 16, 2026. Earnings Yield equals per-share earnings divided by share price. It is the inverse of the price-earnings ratio. View historical data on Sunflex Technology and its competitors.
Is Sunflex Technology's Earnings Yield % too high?
Sunflex Technology's current Earnings Yield % is N/A%. Overall, Sunflex Technology has a GF Score™ of 63/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sunflex Technology's Earnings Yield % compare to APH and GLW?
Sunflex Technology's Earnings Yield % of N/A% can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Earnings Yield % for a Hardware company?
A good Earnings Yield % depends on the Hardware industry context. However, Earnings Yield % 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 Earnings Yield % mean?
A high Earnings Yield % can signal that a stock is expensive relative to its fundamentals. Earnings Yield equals per-share earnings divided by share price. It is the inverse of the price-earnings ratio. View historical data on Sunflex Technology and its competitors. Sunflex Technology's current Earnings Yield % is N/A%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sunflex Technology stock overvalued right now?
Based on GuruFocus' analysis, Sunflex Technology (ROCO:3390) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$19.94, compared to a current price of NT$26.10 — trading 30.9% above its estimated fair value. The current Earnings Yield % is N/A%. Sunflex Technology's overall GF Score™ is 63/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Yield % calculated?
Earnings Yield % is calculated from a company's financial statements. For Sunflex Technology (ROCO:3390), the current Earnings Yield % is N/A% as of Jul. 16, 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 Sunflex Technology (ROCO:3390) Overvalued in 2026?

Based on GuruFocus' analysis, Sunflex Technology stock appears to be overvalued. The current stock price of NT$26.10 is trading 30.9% above its estimated GF Value™ of NT$19.94. GuruFocus considers Sunflex Technology to be Significantly Overvalued.

Key valuation signals for ROCO:3390:

  • Earnings Yield %: N/A%
  • GF Value™: NT$19.94 vs. price of NT$26.10 (30.9% above fair value)
  • GF Score™: 63/100 with 5 warning signs

No single metric tells the full story. See the ROCO:3390 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sunflex Technology Business Description

Address No. 522, Nanshang Road, Guishan District, Taoyuan, TWN, 333014
Sunflex Technology Corp is the manufacture of electronic components and international trades. It provides single and double-sided flexible PCBs that are applied in the manufacturing of mobile phones, notebook computers, disk players, and LCDs. The company applications include touch panels, liquid crystal module, computer accessories, and a light bar. The Company's operating revenue is mainly derived from the production and sales of customized flexible circuit boards.
63GF Score

Get the complete analysis for ROCO:3390

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

NT$26.10
Price
NT$19.94
GF Value