Jetbest (ROCO:4741) E10: NT$2.01 (As of Dec. 2025)

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Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:4741 Jetbest Corp ROCO:4741
61 GF Score
Price NT$50.40
GF Value NT$23.07
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Jetbest E10?

Jetbest ROCO:4741 -3.08% 61 E10 is NT$2.01 as of Dec. 2025. GuruFocus rates ROCO:4741 with a GF Score™ of 61/100 and a GF Value™ of NT$23.07 (Significantly Overvalued). The stock has 7 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Jetbest's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.300. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$2.01 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Jetbest's average E10 Growth Rate was -6.10% per year. During the past 3 years, the average E10 Growth Rate was -1.10% 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 E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Jetbest was -1.10% per year. The lowest was -1.10% per year. And the median was -1.10% per year.

As of today (2026-07-14), Jetbest's current stock price is NT$50.40. Jetbest's E10 for the quarter that ended in Dec. 2025 was NT$2.01. Jetbest's Shiller PE Ratio of today is 25.07.

During the past 13 years, the highest Shiller PE Ratio of Jetbest was 38.81. The lowest was 10.17. And the median was 15.93.


Jetbest  (ROCO:4741) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Jetbest's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=50.40/2.01
=25.07

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Jetbest was 38.81. The lowest was 10.17. And the median was 15.93.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Jetbest E10 Related Terms


Jetbest E10 Historical Data

* Premium members only.

The historical data trend for Jetbest's E10 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.

Jetbest E10 Chart

Jetbest Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 2.08 2.11 2.14 2.01

Jetbest Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
E10 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 2.14 2.12 2.06 2.03 2.01

ROCO:4741 vs LIN, SHW, ECL: E10 Comparison

For the Specialty Chemicals subindustry, Jetbest's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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.


Jetbest Shiller PE Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Jetbest's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Jetbest's Shiller PE Ratio falls into.


ROCO:4741
61GF Score
Jetbest Corp ROCO:4741
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Jetbest E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Jetbest's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=0.3/324.0540*324.0540
=0.300

Current CPI (Dec. 2025) = 324.0540.

Jetbest Quarterly Data

per share eps CPI Adj_EPS
201603 0.679 238.132 0.924
201606 0.830 241.018 1.116
201609 1.189 241.428 1.596
201612 0.660 241.432 0.886
201703 0.406 243.801 0.540
201706 0.764 244.955 1.011
201709 0.726 246.819 0.953
201712 0.774 246.524 1.017
201803 0.575 249.554 0.747
201806 0.774 251.989 0.995
201809 0.340 252.439 0.436
201812 0.349 251.233 0.450
201903 0.142 254.202 0.181
201906 0.321 256.143 0.406
201909 0.472 256.759 0.596
201912 0.170 256.974 0.214
202003 0.292 258.115 0.367
202006 -0.245 257.797 -0.308
202009 0.245 260.280 0.305
202012 0.557 260.474 0.693
202103 0.160 264.877 0.196
202106 0.160 271.696 0.191
202109 0.330 274.310 0.390
202112 0.198 278.802 0.230
202203 0.453 287.504 0.511
202206 0.217 296.311 0.237
202209 0.575 296.808 0.628
202212 0.330 296.797 0.360
202303 0.500 301.836 0.537
202306 0.377 305.109 0.400
202309 0.425 307.789 0.447
202312 0.575 306.746 0.607
202403 0.604 312.332 0.627
202406 0.462 314.175 0.477
202409 0.250 315.301 0.257
202412 0.550 315.605 0.565
202503 0.094 319.799 0.095
202506 -0.189 322.561 -0.190
202509 0.090 324.800 0.090
202512 0.300 324.054 0.300

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of NT$2.01 mean?
Jetbest (ROCO:4741) has a E10 of NT$2.01 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Jetbest and its competitors.
Is Jetbest's E10 too high?
Jetbest's current E10 is NT$2.01. Overall, Jetbest has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Jetbest's E10 compare to LIN and SHW?
Jetbest's E10 of NT$2.01 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 E10 for a Chemicals company?
A good E10 depends on the Chemicals industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Jetbest and its competitors. Jetbest's current E10 is NT$2.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Jetbest stock overvalued right now?
Based on GuruFocus' analysis, Jetbest (ROCO:4741) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$23.07, compared to a current price of NT$50.40 — trading 118.5% above its estimated fair value. The current E10 is NT$2.01. Jetbest's overall GF Score™ is 61/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Jetbest (ROCO:4741), the current E10 is NT$2.01 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 Jetbest (ROCO:4741) Overvalued in 2026?

Based on GuruFocus' analysis, Jetbest stock appears to be overvalued. The current stock price of NT$50.40 is trading 118.5% above its estimated GF Value™ of NT$23.07. GuruFocus considers Jetbest to be Significantly Overvalued.

Key valuation signals for ROCO:4741:

  • E10: NT$2.01
  • GF Value™: NT$23.07 vs. price of NT$50.40 (118.5% above fair value)
  • GF Score™: 61/100 with 7 warning signs

No single metric tells the full story. See the ROCO:4741 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Jetbest Business Description

Address No. 173-2, Dahu Road, Xiangshan District, Hsinchu City, TWN, 30093
Jetbest Corp mainly manufactures and sells precision chemical materials, coatings, paints, dyes, and pigments, as well as the wholesale of computer office equipment and related consumables. Its products include UV, ECO, Textile Ink, Latex, Special Application, Ink Cartridges, Pigment Mill Base, and Bulk System. The company generates maximum revenue from Brazil.
61GF Score

Get the complete analysis for ROCO:4741

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$50.40
Price
NT$23.07
GF Value