Yankey Engineering Co., Ltd.

TWSE:6691 Stock Report

Market Cap: NT$76.2b

Yankey Engineering Past Earnings Performance

Past criteria checks 5/6

Yankey Engineering has been growing earnings at an average annual rate of 24.8%, while the Construction industry saw earnings growing at 11.9% annually. Revenues have been growing at an average rate of 18% per year. Yankey Engineering's return on equity is 54.7%, and it has net margins of 12.8%.

Key information

24.81%

Earnings growth rate

23.45%

EPS growth rate

Construction Industry Growth17.45%
Revenue growth rate18.02%
Return on equity54.65%
Net Margin12.82%
Last Earnings Update31 Mar 2026

Recent past performance updates

Recent updates

Analysis Article Mar 17

Why Yankey Engineering's (TWSE:6691) Earnings Are Better Than They Seem

Yankey Engineering Co., Ltd.'s ( TWSE:6691 ) recent earnings report didn't offer any surprises, with the shares...
Analysis Article Mar 11

Some Confidence Is Lacking In Yankey Engineering Co., Ltd.'s (TWSE:6691) P/E

Yankey Engineering Co., Ltd.'s ( TWSE:6691 ) price-to-earnings (or "P/E") ratio of 25.2x might make it look like a sell...
Analysis Article Feb 07

A Look Into Yankey Engineering's (TWSE:6691) Impressive Returns On Capital

If you're not sure where to start when looking for the next multi-bagger, there are a few key trends you should keep an...
Analysis Article Dec 10

Yankey Engineering Co., Ltd. (TWSE:6691) Looks Just Right With A 27% Price Jump

Yankey Engineering Co., Ltd. ( TWSE:6691 ) shareholders have had their patience rewarded with a 27% share price jump in...
Analysis Article Oct 16

Calculating The Fair Value Of Yankey Engineering Co., Ltd. (TWSE:6691)

Key Insights Yankey Engineering's estimated fair value is NT$395 based on 2 Stage Free Cash Flow to Equity With NT$321...
Analysis Article Sep 04

Cautious Investors Not Rewarding Yankey Engineering Co., Ltd.'s (TWSE:6691) Performance Completely

There wouldn't be many who think Yankey Engineering Co., Ltd.'s ( TWSE:6691 ) price-to-earnings (or "P/E") ratio of...
Analysis Article Aug 08

Why We Like The Returns At Yankey Engineering (TWSE:6691)

If you're looking for a multi-bagger, there's a few things to keep an eye out for. Typically, we'll want to notice a...
Analysis Article May 22

Yankey Engineering's (TWSE:6691) Conservative Accounting Might Explain Soft Earnings

The market for Yankey Engineering Co., Ltd.'s ( TWSE:6691 ) shares didn't move much after it posted weak earnings...
Analysis Article Mar 19

Did You Miss Yankey Engineering's (GTSM:6691) 62% Share Price Gain?

We believe investing is smart because history shows that stock markets go higher in the long term. But if when you...
Analysis Article Feb 10

Is Yankey Engineering Co., Ltd.'s (GTSM:6691) 5.6% Dividend Worth Your Time?

Today we'll take a closer look at Yankey Engineering Co., Ltd. ( GTSM:6691 ) from a dividend investor's perspective...
Analysis Article Jan 20

Here's Why We Don't Think Yankey Engineering's (GTSM:6691) Statutory Earnings Reflect Its Underlying Earnings Potential

Broadly speaking, profitable businesses are less risky than unprofitable ones. However, sometimes companies receive a...
Analysis Article Dec 30

Is Yankey Engineering Co., Ltd.'s (GTSM:6691) Latest Stock Performance Being Led By Its Strong Fundamentals?

Yankey Engineering's (GTSM:6691) stock up by 6.3% over the past three months. Given its impressive performance, we...
Analysis Article Dec 10

Should Yankey Engineering (GTSM:6691) Be Disappointed With Their 15% Profit?

On average, over time, stock markets tend to rise higher. This makes investing attractive. But if you choose that path...
Analysis Article Nov 17

Yankey Engineering (GTSM:6691): Are Investors Overlooking Returns On Capital?

Did you know there are some financial metrics that can provide clues of a potential multi-bagger? Amongst other...

Revenue & Expenses Breakdown

How Yankey Engineering makes and spends money. Based on latest reported earnings, on an LTM basis.


Earnings and Revenue History

TWSE:6691 Revenue, expenses and earnings (TWD Millions)
DateRevenueEarningsG+A ExpensesR&D Expenses
31 Mar 2625,3833,2555640
31 Dec 2522,3522,9854980
30 Sep 2520,6162,6724960
30 Jun 2518,8342,4865280
31 Mar 2516,3842,2664880
31 Dec 2415,1922,0304890
30 Sep 2413,1731,7414670
30 Jun 2413,5981,6944430
31 Mar 2414,7361,7394760
31 Dec 2315,5141,7674880
30 Sep 2316,1731,8245190
30 Jun 2315,7751,8755130
31 Mar 2314,7931,8005000
31 Dec 2213,9681,7284730
30 Sep 2213,0371,5844070
30 Jun 2211,7861,2553890
31 Mar 2211,3281,1383090
31 Dec 2110,6599572750
30 Sep 219,6108472250
30 Jun 218,1106911940
31 Mar 216,5565541840
31 Dec 205,3544671640
30 Sep 204,8484501790
30 Jun 205,2035411870
31 Mar 204,8174761830
31 Dec 195,1725301830
30 Sep 195,9285502000
30 Jun 196,6845702180
31 Mar 196,3295562410
31 Dec 185,9745422650
30 Sep 185,1864692760
30 Jun 184,3983962870
31 Mar 184,9084003050
31 Dec 175,4184053230
31 Dec 162,135911860
31 Dec 152,0892022110

Quality Earnings: 6691 has high quality earnings.

Growing Profit Margin: 6691's current net profit margins (12.8%) are lower than last year (13.8%).


Free Cash Flow vs Earnings Analysis


Past Earnings Growth Analysis

Earnings Trend: 6691's earnings have grown significantly by 24.8% per year over the past 5 years.

Accelerating Growth: 6691's earnings growth over the past year (43.6%) exceeds its 5-year average (24.8% per year).

Earnings vs Industry: 6691 earnings growth over the past year (43.6%) exceeded the Construction industry 33.6%.


Return on Equity

High ROE: 6691's Return on Equity (54.7%) is considered outstanding.


Return on Assets


Return on Capital Employed


Discover strong past performing companies

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/06/10 18:34
End of Day Share Price 2026/06/10 00:00
Earnings2026/03/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Yankey Engineering Co., Ltd. is covered by 1 analysts. 1 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Yen Chun WangSinoPac Securities Investment Service