Taiwan Navigation Co (TPE:2617) E10: NT$2.71 (As of Dec. 2025)


TPE:2617 Taiwan Navigation Co Ltd TPE:2617
87 GF Score
Price NT$29.45
GF Value NT$33.32
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is Taiwan Navigation Co E10?

Taiwan Navigation Co TPE:2617 +1.03% 87 E10 is NT$2.71 as of Dec. 2025. GuruFocus rates TPE:2617 with a GF Score™ of 87/100 and a GF Value™ of NT$33.32 (Modestly Undervalued). The stock has 3 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.

Taiwan Navigation Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.810. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$2.71 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Taiwan Navigation Co's average E10 Growth Rate was 14.80% per year. During the past 3 years, the average E10 Growth Rate was 14.60% per year. During the past 5 years, the average E10 Growth Rate was 15.90% 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 Taiwan Navigation Co was 18.50% per year. The lowest was -3.50% per year. And the median was 14.60% per year.

As of today (2026-06-30), Taiwan Navigation Co's current stock price is NT$29.45. Taiwan Navigation Co's E10 for the quarter that ended in Dec. 2025 was NT$2.71. Taiwan Navigation Co's Shiller PE Ratio of today is 10.87.

During the past 13 years, the highest Shiller PE Ratio of Taiwan Navigation Co was 55.49. The lowest was 8.03. And the median was 13.96.


Taiwan Navigation Co  (TPE:2617) 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.

Taiwan Navigation Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=29.45/2.71
=10.87

* 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 Taiwan Navigation Co was 55.49. The lowest was 8.03. And the median was 13.96.


Be Aware

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


Taiwan Navigation Co E10 Related Terms


Taiwan Navigation Co E10 Historical Data

* Premium members only.

The historical data trend for Taiwan Navigation Co'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.

Taiwan Navigation Co E10 Chart

Taiwan Navigation Co 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 1.42 1.80 2.08 2.36 2.71

Taiwan Navigation Co 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 2.36 2.42 2.49 2.63 2.71

Taiwan Navigation Co E10 Competitor Comparison

For the Marine Shipping subindustry, Taiwan Navigation Co'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.


Taiwan Navigation Co Shiller PE Ratio vs Transportation Industry

For the Transportation industry and Industrials sector, Taiwan Navigation Co's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Taiwan Navigation Co's Shiller PE Ratio falls into.


TPE:2617
87GF Score
Taiwan Navigation Co Ltd TPE:2617
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Taiwan Navigation Co 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, Taiwan Navigation Co'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)
=0.81/324.0540*324.0540
=0.810

Current CPI (Dec. 2025) = 324.0540.

Taiwan Navigation Co Quarterly Data

per share eps CPI Adj_EPS
201603 0.020 238.132 0.027
201606 -0.010 241.018 -0.013
201609 -0.040 241.428 -0.054
201612 -0.190 241.432 -0.255
201703 0.040 243.801 0.053
201706 0.070 244.955 0.093
201709 0.390 246.819 0.512
201712 0.620 246.524 0.815
201803 0.350 249.554 0.454
201806 0.620 251.989 0.797
201809 0.920 252.439 1.181
201812 0.400 251.233 0.516
201903 0.400 254.202 0.510
201906 0.240 256.143 0.304
201909 0.430 256.759 0.543
201912 0.370 256.974 0.467
202003 0.390 258.115 0.490
202006 0.260 257.797 0.327
202009 0.170 260.280 0.212
202012 0.410 260.474 0.510
202103 0.370 264.877 0.453
202106 0.630 271.696 0.751
202109 1.150 274.310 1.359
202112 1.000 278.802 1.162
202203 0.590 287.504 0.665
202206 2.540 296.311 2.778
202209 0.750 296.808 0.819
202212 0.950 296.797 1.037
202303 0.340 301.836 0.365
202306 0.400 305.109 0.425
202309 2.640 307.789 2.780
202312 0.590 306.746 0.623
202403 0.810 312.332 0.840
202406 0.580 314.175 0.598
202409 0.960 315.301 0.987
202412 0.730 315.605 0.750
202503 0.580 319.799 0.588
202506 0.430 322.561 0.432
202509 1.350 324.800 1.347
202512 0.810 324.054 0.810

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$2.71 mean?
Taiwan Navigation Co (TPE:2617) has a E10 of NT$2.71 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Taiwan Navigation Co and its competitors.
Is Taiwan Navigation Co's E10 too high?
Taiwan Navigation Co's current E10 is NT$2.71. Overall, Taiwan Navigation Co has a GF Score™ of 87/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Navigation Co's E10 compare to competitors?
Taiwan Navigation Co's E10 of NT$2.71 can be compared against companies in the Transportation 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 Transportation company?
A good E10 depends on the Transportation 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 Taiwan Navigation Co and its competitors. Taiwan Navigation Co's current E10 is NT$2.71. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Navigation Co stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Navigation Co (TPE:2617) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$33.32, compared to a current price of NT$29.45 — trading 11.6% below its estimated fair value. The current E10 is NT$2.71. Taiwan Navigation Co's overall GF Score™ is 87/100 with 3 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 Taiwan Navigation Co (TPE:2617), the current E10 is NT$2.71 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 Taiwan Navigation Co (TPE:2617) Overvalued in 2026?

Based on GuruFocus' analysis, Taiwan Navigation Co stock appears to be undervalued. The current stock price of NT$29.45 is trading 11.6% below its estimated GF Value™ of NT$33.32. GuruFocus considers Taiwan Navigation Co to be Modestly Undervalued.

Key valuation signals for TPE:2617:

  • E10: NT$2.71
  • GF Value™: NT$33.32 vs. price of NT$29.45 (11.6% below fair value)
  • GF Score™: 87/100 with 3 warning signs

No single metric tells the full story. See the TPE:2617 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Taiwan Navigation Co Business Description

Address Jinan Road, No. 29, Section 2, 2-6 Floor, Zhongzheng District, Taipei, TWN, 100023
Taiwan Navigation Co Ltd mainly engages in passenger and freight transport via water, port warehousing, aquatics and mining, and navigation channel dredging. Additionally, it acts as a shipping agency, provides tugboats, and acts as a landowner in agreements with construction companies for the use of its land for the construction of residential and commercial buildings for sale and rental. Geographically, the Group generates maximum revenue from Asia, followed by Europe and other regions.
87GF Score

Get the complete analysis for TPE:2617

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

NT$29.45
Price
NT$33.32
GF Value