TacBright Optronics (ROCO:6434) EPS (Basic): NT$-0.25 (TTM As of Dec. 2025)


ROCO:6434 TacBright Optronics Corp ROCO:6434
40 GF Score
Price NT$19.10
GF Value NT$4.06
Valuation Significantly Overvalued
! 1 Warning Sign
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What is TacBright Optronics EPS (Basic)?

TacBright Optronics ROCO:6434 +1.06% 40 EPS (Basic) is NT$-0.25 as of Dec. 2025. GuruFocus rates ROCO:6434 with a GF Score™ of 40/100 and a GF Value™ of NT$4.06 (Significantly Overvalued). The stock has 1 warning sign investors should review.

TacBright Optronics's basic earnings per share (Basic EPS) for the six months ended in Dec. 2025 was NT$-0.17. Its basic earnings per share (Basic EPS) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$-0.25.

TacBright Optronics's EPS (Diluted) for the six months ended in Dec. 2025 was NT$-0.17. Its EPS (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$-0.25.

TacBright Optronics's EPS without NRI for the six months ended in Dec. 2025 was NT$-0.17. Its EPS without NRIearnings per share without non-recurring items for the trailing twelve months (TTM) ended in Dec. 2025 was -0.25.

During the past 3 years, the average EPS without NRI Growth Rate was -71.00% per year. 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 EPS without NRI Growth Rate using EPS without NRI data.

During the past 13 years, TacBright Optronics's highest 3-Year average EPS without NRI Growth Rate was 32.70% per year. The lowest was -135.60% per year. And the median was -46.50% per year.

TacBright Optronics  (ROCO:6434) EPS (Basic) Explanation

EPS is the single most important variable used by Wall Street in determining the earnings power of a company. But investors need to be aware that Earnings per Share can be easily manipulated by adjusting depreciation and amortization rate or non-recurring items. That's why GuruFocus lists EPS without NRI, which better reflects the company's underlying performance.

Be Aware

Compared with Earnings per share, a company's cash flow is better indicator of the company's earnings power.

If a company's earnings per share is less than cash flow per share over long term, investors need to be cautious and find out why.

TacBright Optronics EPS (Basic) Related Terms

TacBright Optronics EPS (Basic) Historical Data

* Premium members only.

The historical data trend for TacBright Optronics's EPS (Basic) 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.

TacBright Optronics EPS (Basic) Chart

TacBright Optronics Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
EPS (Basic)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.16 -0.05 -0.43 -0.20 -0.25

TacBright Optronics Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
EPS (Basic) 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 -0.19 -0.06 -0.14 -0.08 -0.17
ROCO:6434
40GF Score
TacBright Optronics Corp ROCO:6434
EPS (Basic) is just one metric. See GF Score™, valuation, warning signs, and more.
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TacBright Optronics EPS (Basic) Calculation

EPS (Basic) is a rough measurement of the amount of a company's profit that can be allocated to one share of its stock. Basic earnings per share (EPS) do not factor in the dilutive effects on convertible securities.

TacBright Optronics's Basic EPS for the fiscal year that ended in Dec. 2025 is calculated as

Basic EPS (A: Dec. 2025 )=(Net Income-Preferred Dividends)/Shares Outstanding (Basic Average)
=(-115.455-0)/463.602
=-0.25

TacBright Optronics's Basic EPS for the quarter that ended in Dec. 2025 is calculated as

Basic EPS (Q: Dec. 2025 )=(Net Income-Preferred Dividends)/Shares Outstanding (Basic Average)
=(-79.071-0)/463.602
=-0.17

EPS (Basic) for the trailing twelve months (TTM) ended in Dec. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was NT$-0.25

* 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 EPS (Basic) →
What does a EPS (Basic) of NT$-0.25 mean?
TacBright Optronics (ROCO:6434) has a EPS (Basic) of NT$-0.25 as of Dec. 2025. Earnings per share (basic) equals net income divided by the standard, non-diluted average shares outstanding. View historical data on TacBright Optronics and its competitors.
Is TacBright Optronics' EPS (Basic) too high?
TacBright Optronics' current EPS (Basic) is NT$-0.25. Overall, TacBright Optronics has a GF Score™ of 40/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TacBright Optronics' EPS (Basic) compare to LIN and SHW?
TacBright Optronics' EPS (Basic) of NT$-0.25 can be compared against companies in the Chemicals industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good EPS (Basic) for a Chemicals company?
A good EPS (Basic) depends on the Chemicals industry context. However, EPS (Basic) 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 EPS (Basic) mean?
A high EPS (Basic) can signal that a stock is expensive relative to its fundamentals. Earnings per share (basic) equals net income divided by the standard, non-diluted average shares outstanding. View historical data on TacBright Optronics and its competitors. TacBright Optronics's current EPS (Basic) is NT$-0.25. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TacBright Optronics stock overvalued right now?
Based on GuruFocus' analysis, TacBright Optronics (ROCO:6434) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$4.06, compared to a current price of NT$19.10 — trading 370.4% above its estimated fair value. The current EPS (Basic) is NT$-0.25. TacBright Optronics' overall GF Score™ is 40/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is EPS (Basic) calculated?
EPS (Basic) is calculated from a company's financial statements. For TacBright Optronics (ROCO:6434), the current EPS (Basic) is NT$-0.25 as of Dec. 2025. 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 TacBright Optronics (ROCO:6434) Overvalued in 2026?

Based on GuruFocus' analysis, TacBright Optronics stock appears to be overvalued. The current stock price of NT$19.10 is trading 370.4% above its estimated GF Value™ of NT$4.06. GuruFocus considers TacBright Optronics to be Significantly Overvalued.

Key valuation signals for ROCO:6434:

  • EPS (Basic): NT$-0.25
  • GF Value™: NT$4.06 vs. price of NT$19.10 (370.4% above fair value)
  • GF Score™: 40/100 with 1 warning sign

No single metric tells the full story. See the ROCO:6434 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

TacBright Optronics Business Description

Address No. 3, Kebei 2nd Road, Hsinchu Science Industrial Park, Miaoli County, ZhunanTownship, Hsinchu, TWN
TacBright Optronics Corp is engaged in synthetic resin and plastic manufacturing, surface treatment, wholesale and retail of chemical raw materials, and electronics. Wholesale and retail of sub-materials and manufacturing of precision chemical materials.
40GF Score

Get the complete analysis for ROCO:6434

EPS (Basic) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$19.10
Price
NT$4.06
GF Value