Formosa Sumco Technology (TPE:3532) Owner Earnings per Share (TTM): -13.63 (As of Jun. 2026)

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TPE:3532 Formosa Sumco Technology Corp TPE:3532
56 GF Score
Price NT$342.50
GF Value NT$125.76
Valuation Significantly Overvalued
! 11 Warning Signs
View Full Analysis

What is Formosa Sumco Technology Owner Earnings per Share (TTM)?

Formosa Sumco Technology TPE:3532 +0.74% 56 Owner Earnings per Share (TTM) is -13.63 as of Jun. 2026. GuruFocus rates TPE:3532 with a GF Score™ of 56/100 and a GF Value™ of NT$125.76 (Significantly Overvalued). The stock has 11 warning signs investors should review. Among 436 Semiconductors companies, Formosa Sumco Technology ranks worse than 229357.57% on this metric.

In 1986 Berkshire Hathaway Shareholder Letter, Warren Buffett defined owner earnings as follows:

"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."

Formosa Sumco Technology's Owner Earnings per Share (TTM) ended in Jun. 2026 was NT$-13.63. It's Price-to-Owner-Earnings ratio for today is 0.


The historical rank and industry rank for Formosa Sumco Technology's Owner Earnings per Share (TTM) or its related term are showing as below:


During the past 13 years, the highest Price-to-Owner-Earnings ratio of Formosa Sumco Technology was 68.76. The lowest was 5.81. And the median was 20.18.


TPE:3532's Price-to-Owner-Earnings is not ranked *
in the Semiconductors industry.
Industry Median: 40.97
* Ranked among companies with meaningful Price-to-Owner-Earnings only.

Formosa Sumco Technology's Earnings per Share (Diluted) for the three months ended in Jun. 2026 was NT$0.12. Its Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Jun. 2026 was NT$1.28. It's PE Ratio (TTM) ratio for today is 267.58.

Formosa Sumco Technology's EPS without NRI for the three months ended in Jun. 2026 was NT$0.12. Its EPS without NRI for the trailing twelve months (TTM) ended in Jun. 2026 was NT$1.28. It's PE Ratio without NRI ratio for today is 267.58.


Be Aware

Assumption: Companies usually do not report maintenance capital expenditures and growth capital expenditures separately. Here we use estimated numbers and average them over 5 years. The method to estimate maintenance capital expenditures can be found in above part 4.

Note: GuruFocus' Change In Working Capital is provided by Morningstar. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement from original financial report. And it includes non-current parts of assets and liabilities.


Formosa Sumco Technology Owner Earnings per Share (TTM) Related Terms


Formosa Sumco Technology Owner Earnings per Share (TTM) Historical Data

* Premium members only.

The historical data trend for Formosa Sumco Technology's Owner Earnings per Share (TTM) 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.

Formosa Sumco Technology Owner Earnings per Share (TTM) Chart

Formosa Sumco Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Owner Earnings per Share (TTM)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 7.14 22.28 -5.35 -12.57 -17.47

Formosa Sumco Technology Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Owner Earnings per Share (TTM) 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 -17.29 -17.27 -17.47 -15.32 -13.63

TPE:3532 vs AMAT, LRCX, KLAC: Owner Earnings per Share (TTM) Comparison

For the Semiconductor Equipment & Materials subindustry, Formosa Sumco Technology's Price-to-Owner-Earnings, along with its competitors' market caps and Price-to-Owner-Earnings 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.


Formosa Sumco Technology Price-to-Owner-Earnings vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Formosa Sumco Technology's Price-to-Owner-Earnings distribution charts can be found below:

* The bar in red indicates where Formosa Sumco Technology's Price-to-Owner-Earnings falls into.


TPE:3532
56GF Score
Formosa Sumco Technology Corp TPE:3532
Owner Earnings per Share (TTM) is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Formosa Sumco Technology Owner Earnings per Share (TTM) Calculation

In 1986 Berkshire Hathaway Shareholder Letter, Warren Buffett defined owner earnings as follows:

"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume. (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."

To make it simple, then you will have:

Owner Earnings per Share (TTM) = (Net Income + Depreciation, Depletion and Amortization + Change In Deferred Tax - 5Y Average of Maintenance Capital Expenditure + Change In Working Capital) / Shares Outstanding (Diluted Average)

Formosa Sumco Technology's Owner Earnings per Share (TTM) Calculation:

TTM / Last Quarter Average of Last 20 Quarters
Net Income 502
Depreciation, Depletion and Amortization 2,800
Change In Deferred Tax 0
5Y Average of Maintenance Capital Expenditure 7,849
Change In Working Capital -898
Shares Outstanding (Diluted Average) 400

1. Start with "Net Income" from income statement. Formosa Sumco Technology's Net Income for the trailing twelve months (TTM) ended in Jun. 2026 was NT$502 Mil.

2. "Depreciation, Depletion and Amortization" is from cashflow statement. Formosa Sumco Technology's Depreciation, Depletion and Amortization for the trailing twelve months (TTM) ended in Jun. 2026 was NT$2,800 Mil. This needs to be added back because company does not actually need to pay cash for it. It is a non-cash item.

3. Other non-cash charges usually include "Stock Based Compensation" and "Change In Deferred Tax":
However, to be conservative, GuruFocus will not add Stock Based Compensation back to net income. Formosa Sumco Technology's Change In Deferred Tax for the trailing twelve months (TTM) ended in Jun. 2026 was NT$0 Mil.

4. Average maintenance capital expenditure over a business/industry cycle: 5-Year Average Maintenance Capital Expenditure = NT$7,849 Mil

It is usually best to take a long-term average of maintenance capital expenditure. Ideally this would be as long as 10 years and include at least one economic downturn. However, since many companies do not have as long as 10-year history, here GuruFocus uses the latest 5 years data to do the calculation. To smooth out unusual years but reflect recent developments, we take an average of the 5 year maintenance capital expenditure.

The following shows how to get maintenance capital expenditure.

First, calculate the revenue change regarding to the previous quarter. If the revenue decreased from the previous quarter, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
Second, if the revenue increased from the previous quarter, then calculate the percentage of Net PPE as of corresponding Revenue.
Growth Capital Expenditure = Percentage of Property, Plant and Equipment as of corresponding Revenue * Revenue Increase
Third, calculate Capital Expenditure (positive) - Growth Capital Expenditure.
If [Capital Expenditure (positive) - Growth Capital Expenditure] was negative, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
If [Capital Expenditure (positive) - Growth Capital Expenditure] was positive, then the Maintenance Capital Expenditure = Capital Expenditure (positive) - Growth Capital Expenditure.
Fourth, get the average of the 5 years maintenance capital expenditure.

Formosa Sumco Technology's 5-Year Average Maintenance Capital Expenditure = NT$7,849 Mil

5. "Change In Working Capital" is from cashflow statement. Formosa Sumco Technology's Change In Working Capital for the trailing twelve months (TTM) ended in Jun. 2026 was NT$-898 Mil.
Note: GuruFocus' Change in Working Capital is provided by Morningstar. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement from original financial report. And sometimes it includes non-current parts of assets and liabilities.

6. Formosa Sumco Technology's Shares Outstanding (Diluted Average) for the months ended in Jun. 2026 was 399.508 Mil.

Formosa Sumco Technology's Onwer Earnings Per Share for Jun. 2026 is calculated as:

Owner Earnings per Share (TTM)
=( Net Income+Depreciation, Depletion and Amortization+Change In Deferred Tax
=( 502.467 +2799.762+0
-5Y Avg of Maintenance CAPEX+Change In Working Capital )/Shares Outstanding (Diluted Average)
-7848.6473877222+-897.83)/399.508
=-13.63

Price-to-Owner-Earnings=Current Price/Owner Earnings per Share (TTM)
=342.50/-13.63
=0

* 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.

What does a Owner Earnings per Share (TTM) of -13.63 mean?
Formosa Sumco Technology (TPE:3532) has a Owner Earnings per Share (TTM) of -13.63 as of Jun. 2026. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on Formosa Sumco Technology. Over the past decade, Formosa Sumco Technology's Owner Earnings per Share (TTM) has ranged from 5.81 to 68.76. According to the industry distribution chart, Formosa Sumco Technology ranks #999999 out of 436 companies in the Semiconductors industry.
Is Formosa Sumco Technology's Owner Earnings per Share (TTM) too high?
Formosa Sumco Technology's current Owner Earnings per Share (TTM) is -13.63. Over the past 10 years, this metric has ranged from a low of 5.81 to a high of 68.76. Based on the distribution chart, Formosa Sumco Technology ranks #999999 out of 436 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Formosa Sumco Technology has a GF Score™ of 56/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Formosa Sumco Technology's Owner Earnings per Share (TTM) compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Formosa Sumco Technology ranks #999999 out of 436 companies for Owner Earnings per Share (TTM). This places Formosa Sumco Technology in the lower half of its industry. The industry median Owner Earnings per Share (TTM) is 40.97. Historically, Formosa Sumco Technology's own Owner Earnings per Share (TTM) has ranged from 5.81 to 68.76 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Owner Earnings per Share (TTM) for a Semiconductors company?
The median Owner Earnings per Share (TTM) among Semiconductors companies is 40.97, based on 436 companies in the industry. Companies in the top quartile (top 25%) have a Owner Earnings per Share (TTM) significantly above this median, while those in the bottom quartile fall well below. However, Owner Earnings per Share (TTM) 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 Owner Earnings per Share (TTM) mean?
A high Owner Earnings per Share (TTM) can signal that a stock is expensive relative to its fundamentals. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on Formosa Sumco Technology. For the Semiconductors industry, the median Owner Earnings per Share (TTM) is 40.97 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Formosa Sumco Technology's current Owner Earnings per Share (TTM) is -13.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Formosa Sumco Technology stock overvalued right now?
Based on GuruFocus' analysis, Formosa Sumco Technology (TPE:3532) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$125.76, compared to a current price of NT$342.50 — trading 172.3% above its estimated fair value. The current Owner Earnings per Share (TTM) is -13.63. Formosa Sumco Technology's overall GF Score™ is 56/100 with 11 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Owner Earnings per Share (TTM) calculated?
Owner Earnings per Share (TTM) is calculated from a company's financial statements. For Formosa Sumco Technology (TPE:3532), the current Owner Earnings per Share (TTM) is -13.63 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 Formosa Sumco Technology (TPE:3532) Overvalued in 2026?

Based on GuruFocus' analysis, Formosa Sumco Technology stock appears to be overvalued. The current stock price of NT$342.50 is trading 172.3% above its estimated GF Value™ of NT$125.76. GuruFocus considers Formosa Sumco Technology to be Significantly Overvalued.

Key valuation signals for TPE:3532:

  • Owner Earnings per Share (TTM): -13.63
  • GF Value™: NT$125.76 vs. price of NT$342.50 (172.3% above fair value)
  • GF Score™: 56/100 with 11 warning signs

No single metric tells the full story. See the TPE:3532 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Formosa Sumco Technology Business Description

Address Nanjing East Road, 8th Floor, A1 Building, No. 380, Section 6, Neihu District, Taipei, TWN
Formosa Sumco Technology Corp is a Taiwan-based manufacturer and seller of silicon wafer electronic products. The company operates in two principal geographical areas: Taiwan, China, and Japan, with the majority of revenue from Taiwan. The company's product range includes Polished Wafers, Annealed Wafers, Test Wafers, and Epitaxial Wafers.
56GF Score

Get the complete analysis for TPE:3532

Owner Earnings per Share (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$342.50
Price
NT$125.76
GF Value