TYOYY (Taiyo Yuden Co) E10: $4.41 (As of Mar. 2026)

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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.

TYOYY Taiyo Yuden Co Ltd TYOYY
67 GF Score
Price $302.99
GF Value $88.43
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is Taiyo Yuden Co E10?

Taiyo Yuden Co TYOYY +2.09% 67 E10 is $4.41 as of Mar. 2026. GuruFocus rates TYOYY with a GF Score™ of 67/100 and a GF Value™ of $88.43 (Significantly Overvalued). 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.

Taiyo Yuden Co's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.397. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $4.41 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 0.40% per year. During the past 5 years, the average E10 Growth Rate was 12.60% 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 Taiyo Yuden Co was 120.80% per year. The lowest was 0.40% per year. And the median was 37.05% per year.

As of today (2026-07-16), Taiyo Yuden Co's current stock price is $302.99. Taiyo Yuden Co's E10 for the quarter that ended in Mar. 2026 was $4.41. Taiyo Yuden Co's Shiller PE Ratio of today is 68.71.

During the past 13 years, the highest Shiller PE Ratio of Taiyo Yuden Co was 4773.81. The lowest was 11.74. And the median was 45.00.


Taiyo Yuden Co  (OTCPK:TYOYY) 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.

Taiyo Yuden Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=302.99/4.41
=68.71

* 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 Taiyo Yuden Co was 4773.81. The lowest was 11.74. And the median was 45.00.


Be Aware

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


Taiyo Yuden Co E10 Related Terms


Taiyo Yuden Co E10 Historical Data

* Premium members only.

The historical data trend for Taiyo Yuden 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.

Taiyo Yuden Co E10 Chart

Taiyo Yuden Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.82 5.02 4.55 4.53 4.41

Taiyo Yuden Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 4.53 4.67 4.63 4.27 4.41

TYOYY vs APH, GLW: E10 Comparison

For the Electronic Components subindustry, Taiyo Yuden 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.


Taiyo Yuden Co Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Taiyo Yuden Co's Shiller PE Ratio distribution charts can be found below:

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


TYOYY
67GF Score
Taiyo Yuden Co Ltd TYOYY
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Taiyo Yuden 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, Taiyo Yuden Co's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.397/112.7000*112.7000
=0.397

Current CPI (Mar. 2026) = 112.7000.

Taiyo Yuden Co Quarterly Data

per share eps CPI Adj_EPS
201606 0.066 98.100 0.076
201609 0.209 98.000 0.240
201612 1.097 98.400 1.256
201703 0.125 98.100 0.144
201706 0.878 98.500 1.005
201709 1.205 98.800 1.375
201712 1.468 99.400 1.664
201803 1.084 99.200 1.232
201806 1.604 99.200 1.822
201809 1.501 99.900 1.693
201812 2.416 99.700 2.731
201903 1.003 99.700 1.134
201906 2.078 99.800 2.347
201909 2.412 100.100 2.716
201912 1.362 100.500 1.527
202003 -0.575 100.300 -0.646
202006 1.342 99.900 1.514
202009 2.077 99.900 2.343
202012 2.566 99.300 2.912
202103 2.569 99.900 2.898
202106 3.743 99.500 4.240
202109 4.463 100.100 5.025
202112 3.742 100.100 4.213
202203 3.366 101.100 3.752
202206 2.924 101.800 3.237
202209 2.823 103.100 3.086
202212 0.468 104.100 0.507
202303 -0.873 104.400 -0.942
202306 0.204 105.200 0.219
202309 0.541 106.200 0.574
202312 0.037 106.800 0.039
202403 0.933 107.200 0.981
202406 1.165 108.200 1.213
202409 -0.569 108.900 -0.589
202412 0.869 110.700 0.885
202503 -1.153 111.100 -1.170
202506 -0.194 111.700 -0.196
202509 1.276 112.000 1.284
202512 1.326 113.000 1.322
202603 0.397 112.700 0.397

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 $4.41 mean?
Taiyo Yuden Co (TYOYY) has a E10 of $4.41 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Taiyo Yuden Co and its competitors.
Is Taiyo Yuden Co's E10 too high?
Taiyo Yuden Co's current E10 is $4.41. Overall, Taiyo Yuden Co has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Taiyo Yuden Co's E10 compare to APH and GLW?
Taiyo Yuden Co's E10 of $4.41 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 Taiyo Yuden Co and its competitors. Taiyo Yuden Co's current E10 is $4.41. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiyo Yuden Co stock overvalued right now?
Based on GuruFocus' analysis, Taiyo Yuden Co (TYOYY) is currently considered Significantly Overvalued. The stock's GF Value™ is $88.43, compared to a current price of $302.99 — trading 242.6% above its estimated fair value. The current E10 is $4.41. Taiyo Yuden Co's overall GF Score™ is 67/100 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 Taiyo Yuden Co (TYOYY), the current E10 is $4.41 as of Mar. 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 Taiyo Yuden Co (TYOYY) Overvalued in 2026?

Based on GuruFocus' analysis, Taiyo Yuden Co stock appears to be overvalued. The current stock price of $302.99 is trading 242.6% above its estimated GF Value™ of $88.43. GuruFocus considers Taiyo Yuden Co to be Significantly Overvalued.

Key valuation signals for TYOYY:

  • E10: $4.41
  • GF Value™: $88.43 vs. price of $302.99 (242.6% above fair value)
  • GF Score™: 67/100 with 3 warning signs

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


Taiyo Yuden Co Business Description

Address 6-16-20, Ueno, Taito-ku, Tokyo, JPN, 110-0005
Taiyo Yuden produces passive components for electronic devices. Passive components are used to enable wireless communication, store electricity, handle electric flow, remove electromagnetic noise from circuits, and so on. Passive components are imperative for electronic circuits—for instance, one high-end smartphone contains more than 1,000 passive components. Taiyo Yuden is the global third multilayer ceramic capacitor supplier by revenue, with a low-teens market share.
67GF Score

Get the complete analysis for TYOYY

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

$302.99
Price
$88.43
GF Value