YEST Co., Ltd.

KOSDAQ:A122640 Stock Report

Market Cap: ₩705.8b

YEST Past Earnings Performance

Past criteria checks 1/6

YEST has been growing earnings at an average annual rate of 28.3%, while the Semiconductor industry saw earnings growing at 2.1% annually. Revenues have been growing at an average rate of 8.1% per year. YEST's return on equity is 1.8%, and it has net margins of 1%.

Key information

28.29%

Earnings growth rate

32.67%

EPS growth rate

Semiconductor Industry Growth23.50%
Revenue growth rate8.11%
Return on equity1.77%
Net Margin1.05%
Last Earnings Update31 Mar 2026

Recent past performance updates

Analysis Article Mar 25

YEST's (KOSDAQ:122640) Earnings Aren't As Good As They Appear

Despite posting strong earnings, YEST Co., Ltd.'s ( KOSDAQ:122640 ) stock didn't move much over the last week. We think...

Recent updates

Analysis Article Feb 09

There's Reason For Concern Over YEST Co., Ltd.'s (KOSDAQ:122640) Massive 25% Price Jump

Despite an already strong run, YEST Co., Ltd. ( KOSDAQ:122640 ) shares have been powering on, with a gain of 25% in the...
Analysis Article Jan 26

What Is YEST Co., Ltd.'s (KOSDAQ:122640) Share Price Doing?

YEST Co., Ltd. ( KOSDAQ:122640 ), is not the largest company out there, but it saw a significant share price rise of...
Analysis Article Jan 02

Estimating The Intrinsic Value Of YEST Co., Ltd. (KOSDAQ:122640)

Key Insights YEST's estimated fair value is ₩20,746 based on 2 Stage Free Cash Flow to Equity With ₩18,550 share price...
Analysis Article Sep 19

YEST Co., Ltd.'s (KOSDAQ:122640) 25% Share Price Surge Not Quite Adding Up

The YEST Co., Ltd. ( KOSDAQ:122640 ) share price has done very well over the last month, posting an excellent gain of...
Analysis Article Sep 11

Should You Think About Buying YEST Co., Ltd. (KOSDAQ:122640) Now?

While YEST Co., Ltd. ( KOSDAQ:122640 ) might not have the largest market cap around , it received a lot of attention...
Analysis Article Jul 15

Calculating The Intrinsic Value Of YEST Co., Ltd. (KOSDAQ:122640)

Key Insights YEST's estimated fair value is ₩22,016 based on 2 Stage Free Cash Flow to Equity With ₩18,820 share price...
Analysis Article May 21

Returns At YEST (KOSDAQ:122640) Are On The Way Up

Did you know there are some financial metrics that can provide clues of a potential multi-bagger? Firstly, we'll want...
Analysis Article Apr 25

There's Reason For Concern Over YEST Co., Ltd.'s (KOSDAQ:122640) Massive 27% Price Jump

YEST Co., Ltd. ( KOSDAQ:122640 ) shareholders would be excited to see that the share price has had a great month...
Analysis Article Apr 25

YEST Co., Ltd.'s (KOSDAQ:122640) Shares Climb 27% But Its Business Is Yet to Catch Up

YEST Co., Ltd. ( KOSDAQ:122640 ) shares have had a really impressive month, gaining 27% after a shaky period...
Analysis Article Mar 25

YEST's (KOSDAQ:122640) Earnings Aren't As Good As They Appear

Despite posting strong earnings, YEST Co., Ltd.'s ( KOSDAQ:122640 ) stock didn't move much over the last week. We think...
Analysis Article Mar 05

We Think YEST (KOSDAQ:122640) Can Stay On Top Of Its Debt

David Iben put it well when he said, 'Volatility is not a risk we care about. What we care about is avoiding the...
Analysis Article Jan 03

Revenues Not Telling The Story For YEST Co., Ltd. (KOSDAQ:122640) After Shares Rise 27%

YEST Co., Ltd. ( KOSDAQ:122640 ) shareholders are no doubt pleased to see that the share price has bounced 27% in the...
Analysis Article Dec 17

We Like These Underlying Return On Capital Trends At YEST (KOSDAQ:122640)

There are a few key trends to look for if we want to identify the next multi-bagger. One common approach is to try and...
Analysis Article Oct 25

There's Reason For Concern Over YEST Co., Ltd.'s (KOSDAQ:122640) Massive 27% Price Jump

YEST Co., Ltd. ( KOSDAQ:122640 ) shareholders are no doubt pleased to see that the share price has bounced 27% in the...
Analysis Article Oct 08

A Look At The Fair Value Of YEST Co., Ltd. (KOSDAQ:122640)

Key Insights Using the 2 Stage Free Cash Flow to Equity, YEST fair value estimate is ₩21,273 Current share price of...
Analysis Article Sep 16

YEST's (KOSDAQ:122640) Returns On Capital Are Heading Higher

If we want to find a stock that could multiply over the long term, what are the underlying trends we should look for...
Analysis Article Aug 15

YEST Co., Ltd. (KOSDAQ:122640) Shares May Have Slumped 27% But Getting In Cheap Is Still Unlikely

YEST Co., Ltd. ( KOSDAQ:122640 ) shareholders won't be pleased to see that the share price has had a very rough month...
Analysis Article Aug 12

Here's Why YEST (KOSDAQ:122640) Has A Meaningful Debt Burden

David Iben put it well when he said, 'Volatility is not a risk we care about. What we care about is avoiding the...
Analysis Article Jun 13

YEST (KOSDAQ:122640) Might Have The Makings Of A Multi-Bagger

What trends should we look for it we want to identify stocks that can multiply in value over the long term? One common...
Analysis Article Apr 26

YEST Co., Ltd. (KOSDAQ:122640) Shares May Have Slumped 26% But Getting In Cheap Is Still Unlikely

The YEST Co., Ltd. ( KOSDAQ:122640 ) share price has softened a substantial 26% over the previous 30 days, handing back...
Analysis Article Feb 27

YEST Co., Ltd. (KOSDAQ:122640) Stock Rockets 35% As Investors Are Less Pessimistic Than Expected

YEST Co., Ltd. ( KOSDAQ:122640 ) shareholders would be excited to see that the share price has had a great month...
Analysis Article Apr 13

YEST (KOSDAQ:122640) Is Reinvesting At Lower Rates Of Return

If we want to find a stock that could multiply over the long term, what are the underlying trends we should look for...
Analysis Article Mar 23

Is YEST (KOSDAQ:122640) Using Too Much Debt?

Howard Marks put it nicely when he said that, rather than worrying about share price volatility, 'The possibility of...
Analysis Article Feb 16

If You Had Bought YEST (KOSDAQ:122640) Shares Five Years Ago You'd Have Earned 112% Returns

When you buy a stock there is always a possibility that it could drop 100%. But on the bright side, if you buy shares...
Analysis Article Dec 22

YEST (KOSDAQ:122640) Is Making Moderate Use Of Debt

Howard Marks put it nicely when he said that, rather than worrying about share price volatility, 'The possibility of...

Revenue & Expenses Breakdown

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


Earnings and Revenue History

KOSDAQ:A122640 Revenue, expenses and earnings (KRW Millions)
DateRevenueEarningsG+A ExpensesR&D Expenses
31 Mar 2689,47393612,6251,092
31 Dec 2587,056-57612,9651,211
30 Sep 2593,4075,74214,104839
30 Jun 2598,02411,55913,248836
31 Mar 25102,01110,53413,1781,021
31 Dec 24100,09510,43012,8521,065
30 Sep 24101,204-7,53910,3241,637
30 Jun 2495,518-21,3089,7701,881
31 Mar 2488,167-26,73510,9481,697
31 Dec 2379,808-28,31910,1681,736
30 Sep 2382,934-34,26516,0913,425
30 Jun 2381,142-30,82817,5853,123
31 Mar 2377,686-4,47016,6073,431
31 Dec 2275,994-2,90617,3253,568
30 Sep 2272,3425,52713,6123,150
30 Jun 2269,7175,34912,6553,388
31 Mar 2273,177-11,61411,9243,309
31 Dec 2172,405-21,71211,0433,722
30 Sep 2166,242-16,3728,4261,736
30 Jun 2169,120-18,2788,0931,728
31 Mar 2167,483-17,0157,4731,521
31 Dec 2066,0902887,374853
30 Sep 2064,611-19,7009,9373,712
30 Jun 2060,118-15,4799,8003,453
31 Mar 2052,598-19,7189,8243,822
31 Dec 1953,365-30,71110,1273,836
30 Sep 1957,049-3,6039,6061,359
30 Jun 1968,191-4,2149,8611,396
31 Mar 1979,394-4,6869,7431,272
31 Dec 1892,092-6919,9391,483
30 Sep 1898,278-4,9429,684882
30 Jun 18101,3292379,410833
31 Mar 18130,27811,0729,2271,322
31 Dec 17150,43114,7058,8381,101
30 Sep 17146,11418,0218,6651,188
30 Jun 17131,80215,6888,0211,380
31 Mar 1787,6929,2167,089588
31 Dec 1652,7052,5416,530652
31 Dec 1570,5847,3765,4001,044

Quality Earnings: A122640 has a large one-off gain of ₩3.7B impacting its last 12 months of financial results to 31st March, 2026.

Growing Profit Margin: A122640's current net profit margins (1%) are lower than last year (10.3%).


Free Cash Flow vs Earnings Analysis


Past Earnings Growth Analysis

Earnings Trend: A122640 has become profitable over the past 5 years, growing earnings by 28.3% per year.

Accelerating Growth: A122640's has had negative earnings growth over the past year, so it can't be compared to its 5-year average.

Earnings vs Industry: A122640 had negative earnings growth (-91.1%) over the past year, making it difficult to compare to the Semiconductor industry average (27.4%).


Return on Equity

High ROE: A122640's Return on Equity (1.8%) is considered low.


Return on Assets


Return on Capital Employed


Discover strong past performing companies

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/07/06 15:45
End of Day Share Price 2026/07/06 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

YEST Co., Ltd. is covered by 6 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
Jang-wook ParkDaishin Securities Co. Ltd.
Jongsun ParkEugene Investment & Securities Co Ltd.
In-jun SonHeungkuk Securities Co., Ltd