3S Silicon Tech (ROCO:5297) Operating Income: NT$26.7 Mil (TTM As of Jun. 2026)

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ROCO:5297 3S Silicon Tech Inc ROCO:5297
71 GF Score
Price NT$83.80
GF Value NT$33.85
Valuation Significantly Overvalued
! 5 Warning Signs
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What is 3S Silicon Tech Operating Income?

3S Silicon Tech ROCO:5297 +4.49% 71 Operating Income is NT$26.7 Mil as of Jun. 2026. GuruFocus rates ROCO:5297 with a GF Score™ of 71/100 and a GF Value™ of NT$33.85 (Significantly Overvalued). The stock has 5 warning signs investors should review.

3S Silicon Tech's Operating Income for the six months ended in Jun. 2026 was NT$11.6 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 was NT$26.7 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. 3S Silicon Tech's Operating Income for the six months ended in Jun. 2026 was NT$11.6 Mil. 3S Silicon Tech's Revenue for the six months ended in Jun. 2026 was NT$185.5 Mil. Therefore, 3S Silicon Tech's Operating Margin % for the quarter that ended in Jun. 2026 was 6.28%.

3S Silicon Tech's 5-Year average Growth Rate for Operating Margin % was 0.00% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. 3S Silicon Tech's annualized ROC % for the quarter that ended in Jun. 2026 was 8.07%. 3S Silicon Tech's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 was 12.74%.


3S Silicon Tech  (ROCO:5297) Operating Income Explanation

1. Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition.

3S Silicon Tech's annualized ROC % for the quarter that ended in Jun. 2026 is calculated as:

ROC % (Q: Jun. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2025 ) + Invested Capital (Q: Jun. 2026 ))/ count )
=23.28 * ( 1 - 15.98% )/( (218.824 + 266.005)/ 2 )
=19.559856/242.4145
=8.07 %

where

Invested Capital(Q: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=664.122 - 77.965 - ( 367.333 - max(0, 197.479 - 566.097+367.333))
=218.824

Invested Capital(Q: Jun. 2026 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=666.165 - 114.036 - ( 286.124 - max(0, 197.422 - 567.363+286.124))
=266.005

Note: The Operating Income data used here is two times the semi-annual (Jun. 2026) data.

2. Joel Greenblatt's definition of Return on Capital:

3S Silicon Tech's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 is calculated as:

ROC (Joel Greenblatt) %(Q: Jun. 2026 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Dec. 2025  Q: Jun. 2026
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=17.136/( ( (56.497 + max(49.195, 0)) + (55.401 + max(108.013, 0)) )/ 2 )
=17.136/( ( 105.692 + 163.414 )/ 2 )
=17.136/134.553
=12.74 %

where Working Capital is:

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(67.633 + 103.496 + 12.278) - (77.965 + 0 + 56.247)
=49.195

Working Capital(Q: Jun. 2026 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(110.322 + 147.694 + 10.808) - (114.036 + 0 + 46.775)
=108.013

When net working capital is negative, 0 is used.

Note: The EBIT data used here is two times the semi-annual (Jun. 2026) EBIT data.

3. Operating Income is also linked to Operating Margin %:

3S Silicon Tech's Operating Margin % for the quarter that ended in Jun. 2026 is calculated as:

Operating Margin %=Operating Income (Q: Jun. 2026 )/Revenue (Q: Jun. 2026 )
=11.64/185.461
=6.28 %

* 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.

4. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Operating Income growth rate using Operating Income per share data.


Be Aware

Compared with a company's EBITDA margin, Operating Margin can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin may decline. Often the Operating Margin declines well before the company's revenue or even profit decline. Therefore, Operating Margin is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia's Operating Margin had already been in decline since 2002, although its earnings per share were still rising. Investors who paid attention to Operating Margin would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.


3S Silicon Tech Operating Income Related Terms


3S Silicon Tech Operating Income Historical Data

* Premium members only.

The historical data trend for 3S Silicon Tech's Operating Income 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.

3S Silicon Tech Operating Income Chart

3S Silicon Tech Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Income
Get a 7-Day Free Trial Premium Member Only Premium Member Only -5.08 28.16 24.63 26.80 10.02

3S Silicon Tech Semi-Annual Data
Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25 Jun26
Operating Income 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 0.03 26.77 -5.00 15.01 11.64
ROCO:5297
71GF Score
3S Silicon Tech Inc ROCO:5297
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
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3S Silicon Tech Operating Income Calculation

Operating Income, is the profit a company earned through operations. All expenses, including cash expenses such as cost of goods sold (COGS), research & development, wages, and non-cash expenses, such as depreciation, depletion and amortization, have been deducted from the sales.

Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 adds up the semi-annually data reported by the company within the most recent 12 months, which was NT$26.7 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.

Frequently Asked Questions Learn more about Operating Income →
What does a Operating Income of NT$26.7 Mil mean?
3S Silicon Tech (ROCO:5297) has a Operating Income of NT$26.7 Mil as of Jun. 2026. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on 3S Silicon Tech and its competitors.
Is 3S Silicon Tech's Operating Income too high?
3S Silicon Tech's current Operating Income is NT$26.7 Mil. Overall, 3S Silicon Tech has a GF Score™ of 71/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does 3S Silicon Tech's Operating Income compare to NVDA and AVGO?
3S Silicon Tech's Operating Income of NT$26.7 Mil can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Income for a Semiconductors company?
A good Operating Income depends on the Semiconductors industry context. However, Operating Income 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 Operating Income mean?
A high Operating Income can signal that a stock is expensive relative to its fundamentals. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on 3S Silicon Tech and its competitors. 3S Silicon Tech's current Operating Income is NT$26.7 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is 3S Silicon Tech stock overvalued right now?
Based on GuruFocus' analysis, 3S Silicon Tech (ROCO:5297) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$33.85, compared to a current price of NT$83.80 — trading 147.6% above its estimated fair value. The current Operating Income is NT$26.7 Mil. 3S Silicon Tech's overall GF Score™ is 71/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Income calculated?
Operating Income is calculated from a company's financial statements. For 3S Silicon Tech (ROCO:5297), the current Operating Income is NT$26.7 Mil 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 3S Silicon Tech (ROCO:5297) Overvalued in 2026?

Based on GuruFocus' analysis, 3S Silicon Tech stock appears to be overvalued. The current stock price of NT$83.80 is trading 147.6% above its estimated GF Value™ of NT$33.85. GuruFocus considers 3S Silicon Tech to be Significantly Overvalued.

Key valuation signals for ROCO:5297:

  • Operating Income: NT$26.7 Mil
  • GF Value™: NT$33.85 vs. price of NT$83.80 (147.6% above fair value)
  • GF Score™: 71/100 with 5 warning signs

No single metric tells the full story. See the ROCO:5297 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


3S Silicon Tech Business Description

Address No. 169-2, Section 1, Kangle Road, 3rd Floor, Xinfeng Township, Hsinchu, TWN, 304
3S Silicon Tech Inc. is a Taiwan-based company that offers die bonding for discrete power devices. Its products include clip-die bonders for power devices, snap ovens, customized equipment, and an open lab platform. 3S also provides intelligent automatic assembly machine systems, focusing on the packaging technology of discrete power semiconductors, supported by solutions and services. The company's systems include die-attach machines, stencil printers, copper strip die bonders, vacuum reflow ovens, and formic acid vacuum reflow ovens.
71GF Score

Get the complete analysis for ROCO:5297

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

NT$83.80
Price
NT$33.85
GF Value