RION Co (TSE:6823) E10: 円190.61 (As of Mar. 2026)


TSE:6823 RION Co Ltd TSE:6823
87 GF Score
Price 円3,840.00
GF Value 円2,672.12
Valuation Significantly Overvalued
! 6 Warning Signs
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What is RION Co E10?

RION Co TSE:6823 -1.54% 87 E10 is 円190.61 as of Mar. 2026. GuruFocus rates TSE:6823 with a GF Score™ of 87/100 and a GF Value™ of 円2,672.12 (Significantly Overvalued). The stock has 6 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.

RION Co's adjusted earnings per share data for the three months ended in Mar. 2026 was 円88.990. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円190.61 for the trailing ten years ended in Mar. 2026.

During the past 12 months, RION Co's average E10 Growth Rate was 8.40% per year. During the past 3 years, the average E10 Growth Rate was 9.10% per year. During the past 5 years, the average E10 Growth Rate was 8.70% 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 RION Co was 10.50% per year. The lowest was 7.10% per year. And the median was 8.70% per year.

As of today (2026-06-30), RION Co's current stock price is 円3840.00. RION Co's E10 for the quarter that ended in Mar. 2026 was 円190.61. RION Co's Shiller PE Ratio of today is 20.15.

During the past 13 years, the highest Shiller PE Ratio of RION Co was 32.76. The lowest was 11.81. And the median was 17.55.


RION Co  (TSE:6823) 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.

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

Shiller PE Ratio=Share Price/E10
=3840.00/190.61
=20.15

* 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 RION Co was 32.76. The lowest was 11.81. And the median was 17.55.


Be Aware

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


RION Co E10 Related Terms


RION Co E10 Historical Data

* Premium members only.

The historical data trend for RION 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.

RION Co E10 Chart

RION 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 138.50 146.61 159.74 175.77 190.61

RION 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 175.77 179.33 183.31 187.79 190.61

TSE:6823 vs ABT, SYK, MDT: E10 Comparison

For the Medical Devices subindustry, RION 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.


RION Co Shiller PE Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, RION Co's Shiller PE Ratio distribution charts can be found below:

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


TSE:6823
87GF Score
RION Co Ltd TSE:6823
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

RION 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, RION 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)
=88.99/112.7000*112.7000
=88.990

Current CPI (Mar. 2026) = 112.7000.

RION Co Quarterly Data

per share eps CPI Adj_EPS
201606 11.790 98.100 13.545
201609 26.996 98.000 31.045
201612 27.057 98.400 30.989
201703 48.870 98.100 56.143
201706 25.290 98.500 28.936
201709 35.480 98.800 40.472
201712 48.365 99.400 54.836
201803 44.620 99.200 50.692
201806 30.920 99.200 35.128
201809 33.739 99.900 38.062
201812 45.870 99.700 51.851
201903 52.602 99.700 59.461
201906 36.730 99.800 41.478
201909 44.645 100.100 50.265
201912 25.770 100.500 28.898
202003 37.806 100.300 42.480
202006 24.690 99.900 27.853
202009 34.023 99.900 38.382
202012 37.363 99.300 42.405
202103 37.180 99.900 41.944
202106 29.670 99.500 33.606
202109 38.928 100.100 43.828
202112 56.462 100.100 63.569
202203 56.333 101.100 62.797
202206 15.250 101.800 16.883
202209 33.982 103.100 37.146
202212 55.706 104.100 60.308
202303 41.365 104.400 44.654
202306 55.580 105.200 59.542
202309 46.661 106.200 49.517
202312 60.454 106.800 63.794
202403 52.800 107.200 55.509
202406 32.561 108.200 33.915
202409 64.709 108.900 66.967
202412 75.600 110.700 76.966
202503 59.320 111.100 60.174
202506 48.310 111.700 48.742
202509 69.460 112.000 69.894
202512 64.650 113.000 64.478
202603 88.990 112.700 88.990

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 円190.61 mean?
RION Co (TSE:6823) has a E10 of 円190.61 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on RION Co and its competitors.
Is RION Co's E10 too high?
RION Co's current E10 is 円190.61. Overall, RION Co has a GF Score™ of 87/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does RION Co's E10 compare to ABT and SYK?
RION Co's E10 of 円190.61 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good E10 depends on the Medical Devices & Instruments 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 RION Co and its competitors. RION Co's current E10 is 円190.61. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is RION Co stock overvalued right now?
Based on GuruFocus' analysis, RION Co (TSE:6823) is currently considered Significantly Overvalued. The stock's GF Value™ is 円2,672.12, compared to a current price of 円3,840.00 — trading 43.7% above its estimated fair value. The current E10 is 円190.61. RION Co's overall GF Score™ is 87/100 with 6 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 RION Co (TSE:6823), the current E10 is 円190.61 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 RION Co (TSE:6823) Overvalued in 2026?

Based on GuruFocus' analysis, RION Co stock appears to be overvalued. The current stock price of 円3,840.00 is trading 43.7% above its estimated GF Value™ of 円2,672.12. GuruFocus considers RION Co to be Significantly Overvalued.

Key valuation signals for TSE:6823:

  • E10: 円190.61
  • GF Value™: 円2,672.12 vs. price of 円3,840.00 (43.7% above fair value)
  • GF Score™: 87/100 with 6 warning signs

No single metric tells the full story. See the TSE:6823 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


RION Co Business Description

Other Exchanges G73:Germany
Address 3-20-41 Higashimotomachi, Kokubunji, Tokyo, JPN, 185-8533
RION Co Ltd is engaged in manufacturing and selling of maintenance services of a medical device. The company offers hearing instruments and medical equipment, an environmental device including sound and vibration measuring instruments and particle counters and parts and equipment.
87GF Score

Get the complete analysis for TSE:6823

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

円3,840.00
Price
円2,672.12
GF Value