Taihan Fiber Optics Co., Ltd

KOSDAQ:A010170 Stock Report

Market Cap: ₩1.9t

Taihan Fiber Optics Past Earnings Performance

Past criteria checks 0/6

Taihan Fiber Optics's earnings have been declining at an average annual rate of -8.5%, while the Communications industry saw earnings declining at 2.7% annually. Revenues have been declining at an average rate of 1.4% per year.

Key information

-8.51%

Earnings growth rate

-3.02%

EPS growth rate

Communications Industry Growth16.35%
Revenue growth rate-1.43%
Return on equity-21.22%
Net Margin-16.59%
Last Earnings Update31 Mar 2026

Recent past performance updates

Recent updates

Analysis Article • Jan 05

Investors Appear Satisfied With Taihan Fiber Optics Co., Ltd's (KOSDAQ:010170) Prospects As Shares Rocket 41%

Despite an already strong run, Taihan Fiber Optics Co., Ltd ( KOSDAQ:010170 ) shares have been powering on, with a gain...
Analysis Article • Oct 27

After Leaping 25% Taihan Fiber Optics Co., Ltd (KOSDAQ:010170) Shares Are Not Flying Under The Radar

Despite an already strong run, Taihan Fiber Optics Co., Ltd ( KOSDAQ:010170 ) shares have been powering on, with a gain...
Analysis Article • Oct 15

Taihan Fiber Optics (KOSDAQ:010170) Is Carrying A Fair Bit Of Debt

The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says...
Analysis Article • Sep 10

Taihan Fiber Optics Co., Ltd (KOSDAQ:010170) Soars 49% But It's A Story Of Risk Vs Reward

Taihan Fiber Optics Co., Ltd ( KOSDAQ:010170 ) shares have continued their recent momentum with a 49% gain in the last...
Analysis Article • Jul 21

Why Investors Shouldn't Be Surprised By Taihan Fiber Optics Co., Ltd's (KOSDAQ:010170) 28% Share Price Surge

Taihan Fiber Optics Co., Ltd ( KOSDAQ:010170 ) shares have continued their recent momentum with a 28% gain in the last...
Analysis Article • Jun 20

Does Taihan Fiber Optics (KOSDAQ:010170) Have A Healthy Balance Sheet?

Legendary fund manager Li Lu (who Charlie Munger backed) once said, 'The biggest investment risk is not the volatility...
Analysis Article • May 09

Improved Revenues Required Before Taihan Fiber Optics Co., Ltd (KOSDAQ:010170) Stock's 28% Jump Looks Justified

Taihan Fiber Optics Co., Ltd ( KOSDAQ:010170 ) shareholders are no doubt pleased to see that the share price has...
Analysis Article • Mar 12

Benign Growth For Taihan Fiber Optics Co., Ltd (KOSDAQ:010170) Underpins Stock's 37% Plummet

Taihan Fiber Optics Co., Ltd ( KOSDAQ:010170 ) shareholders won't be pleased to see that the share price has had a very...
Analysis Article • Nov 29

Lacklustre Performance Is Driving Taihan Fiber Optics Co., Ltd's (KOSDAQ:010170) 25% Price Drop

The Taihan Fiber Optics Co., Ltd ( KOSDAQ:010170 ) share price has fared very poorly over the last month, falling by a...
Analysis Article • Nov 15

Is Taihan Fiber Optics (KOSDAQ:010170) Using Too Much Debt?

Warren Buffett famously said, 'Volatility is far from synonymous with risk.' So it seems the smart money knows that...
Analysis Article • Jul 12

Is Taihan Fiber Optics (KOSDAQ:010170) A Risky Investment?

The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says...
Analysis Article • Apr 12

Is Taihan Fiber Optics (KOSDAQ:010170) Using Too Much Debt?

Legendary fund manager Li Lu (who Charlie Munger backed) once said, 'The biggest investment risk is not the volatility...
Analysis Article • Mar 08

Taihan Fiber Optics Co., Ltd's (KOSDAQ:010170) Share Price Is Matching Sentiment Around Its Revenues

Taihan Fiber Optics Co., Ltd's ( KOSDAQ:010170 ) price-to-sales (or "P/S") ratio of 0.4x may look like a pretty...
Analysis Article • Feb 25

Taihan Fiber Optics (KOSDAQ:010170) Is Carrying A Fair Bit Of Debt

Legendary fund manager Li Lu (who Charlie Munger backed) once said, 'The biggest investment risk is not the volatility...
Analysis Article • Jan 04

Is Taihan Fiber Optics' (KOSDAQ:010170) 213% Share Price Increase Well Justified?

The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put...

Revenue & Expenses Breakdown

How Taihan Fiber Optics makes and spends money. Based on latest reported earnings, on an LTM basis.

Earnings and Revenue History

KOSDAQ:A010170 Revenue, expenses and earnings (KRW Millions)
DateRevenueEarningsG+A ExpensesR&D Expenses
31 Mar 26148,302-24,61020,9592,123
31 Dec 25139,447-27,97319,5891,897
30 Sep 25146,122-47,24726,4461,507
30 Jun 25146,753-45,75226,460996
31 Mar 25145,283-52,63529,676586
31 Dec 24152,717-56,03831,089801
30 Sep 24151,821-42,83424,249799
30 Jun 24148,729-47,13424,4301,645
31 Mar 24148,522-43,55424,6471,970
31 Dec 23180,263-29,45725,8801,916
30 Sep 23205,870-11,60731,9251,549
30 Jun 23209,158-1,48732,5401,048
31 Mar 23216,5912,16931,582966
31 Dec 22190,109-3,08428,7491,103
30 Sep 22178,079-44,18930,4861,127
30 Jun 22166,219-46,46130,248637
31 Mar 22169,171-45,84128,285710
31 Dec 21156,610-49,11428,951441
30 Sep 21140,421-18,45321,3869
30 Jun 21143,222-22,27021,0239
31 Mar 21126,558-29,99023,488-41
31 Dec 20136,088-27,39922,214980
30 Sep 20136,461-24,35621,9052,374
30 Jun 20139,057-19,84921,2932,374
31 Mar 20153,446-11,26619,2741,976
31 Dec 19154,296-11,70118,1011,923
30 Sep 19163,858-5,52917,2701,558
30 Jun 19166,413-58316,1061,558
31 Mar 19161,48412,70214,8792,355
31 Dec 18167,15021,52514,8292,085
30 Sep 18157,92126,37714,8512,027
30 Jun 18154,47426,22914,2152,027
31 Mar 18148,73316,41713,4181,609
31 Dec 17139,66213,29112,9511,463
30 Sep 17141,7007,19213,2241,454
30 Jun 17134,065-45913,4981,880
31 Mar 17125,606-9,21113,2041,894
31 Dec 16116,472-12,58713,6301,437
30 Sep 16113,742-7,89114,1341,175
30 Jun 16111,44195312,366968
31 Mar 16109,31047113,8691,148
31 Dec 15108,990-1,33813,6041,206
30 Sep 15104,487-22,58112,0881,398

Quality Earnings: A010170 is currently unprofitable.

Growing Profit Margin: A010170 is currently unprofitable.

Free Cash Flow vs Earnings Analysis

Past Earnings Growth Analysis

Earnings Trend: A010170 is unprofitable, and losses have increased over the past 5 years at a rate of 8.5% per year.

Accelerating Growth: Unable to compare A010170's earnings growth over the past year to its 5-year average as it is currently unprofitable

Earnings vs Industry: A010170 is unprofitable, making it difficult to compare its past year earnings growth to the Communications industry (7%).

Return on Equity

High ROE: A010170 has a negative Return on Equity (-21.22%), as it is currently unprofitable.

Return on Assets

Return on Capital Employed

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Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/07/02 02:53
End of Day Share Price 2026/07/02 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

Taihan Fiber Optics Co., Ltd is covered by 3 analysts. 0 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Jongsun ParkEugene Investment & Securities Co Ltd.
Yeon Sung JungNH Investment & Securities Co., Ltd.
Sun-Jae HeoSK Securities Co., Ltd.