Harmonic Drive Systems (TSE:6324) E10: 円42.12 (As of Mar. 2026)


TSE:6324 Harmonic Drive Systems Inc TSE:6324
67 GF Score
Price 円7,880.00
GF Value 円3,868.69
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Harmonic Drive Systems E10?

Harmonic Drive Systems TSE:6324 +4.93% 67 E10 is 円42.12 as of Mar. 2026. GuruFocus rates TSE:6324 with a GF Score™ of 67/100 and a GF Value™ of 円3,868.69 (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.

Harmonic Drive Systems's adjusted earnings per share data for the three months ended in Mar. 2026 was 円8.860. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円42.12 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Harmonic Drive Systems's average E10 Growth Rate was -8.50% per year. During the past 3 years, the average E10 Growth Rate was -17.30% per year. During the past 5 years, the average E10 Growth Rate was -9.80% 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 Harmonic Drive Systems was 4.30% per year. The lowest was -17.30% per year. And the median was -4.40% per year.

As of today (2026-07-13), Harmonic Drive Systems's current stock price is 円7880.00. Harmonic Drive Systems's E10 for the quarter that ended in Mar. 2026 was 円42.12. Harmonic Drive Systems's Shiller PE Ratio of today is 187.08.

During the past 13 years, the highest Shiller PE Ratio of Harmonic Drive Systems was 209.88. The lowest was 42.60. And the median was 73.81.


Harmonic Drive Systems  (TSE:6324) 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.

Harmonic Drive Systems's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=7880.00/42.12
=187.08

* 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 Harmonic Drive Systems was 209.88. The lowest was 42.60. And the median was 73.81.


Be Aware

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


Harmonic Drive Systems E10 Related Terms


Harmonic Drive Systems E10 Historical Data

* Premium members only.

The historical data trend for Harmonic Drive Systems'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.

Harmonic Drive Systems E10 Chart

Harmonic Drive Systems 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 67.81 74.46 46.66 46.02 42.12

Harmonic Drive Systems 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 46.02 44.18 43.51 42.96 42.12

TSE:6324 vs GEV, ETN, PH: E10 Comparison

For the Specialty Industrial Machinery subindustry, Harmonic Drive Systems'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.


Harmonic Drive Systems Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Harmonic Drive Systems's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Harmonic Drive Systems's Shiller PE Ratio falls into.


TSE:6324
67GF Score
Harmonic Drive Systems Inc TSE:6324
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Harmonic Drive Systems 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, Harmonic Drive Systems'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)
=8.86/112.7000*112.7000
=8.860

Current CPI (Mar. 2026) = 112.7000.

Harmonic Drive Systems Quarterly Data

per share eps CPI Adj_EPS
201606 14.900 98.100 17.118
201609 15.150 98.000 17.423
201612 15.916 98.400 18.229
201703 169.450 98.100 194.669
201706 19.280 98.500 22.059
201709 20.720 98.800 23.635
201712 25.029 99.400 28.378
201803 21.850 99.200 24.824
201806 31.820 99.200 36.150
201809 29.550 99.900 33.336
201812 33.863 99.700 38.278
201903 25.280 99.700 28.576
201906 3.980 99.800 4.494
201909 -1.070 100.100 -1.205
201912 -8.490 100.500 -9.521
202003 -5.803 100.300 -6.520
202006 1.210 99.900 1.365
202009 -1.383 99.900 -1.560
202012 -0.010 99.300 -0.011
202103 7.059 99.900 7.963
202106 11.650 99.500 13.196
202109 11.394 100.100 12.828
202112 23.410 100.100 26.357
202203 22.559 101.100 25.147
202206 12.550 101.800 13.894
202209 18.190 103.100 19.884
202212 24.730 104.100 26.773
202303 24.200 104.400 26.124
202306 2.440 105.200 2.614
202309 0.850 106.200 0.902
202312 -7.522 106.800 -7.938
202403 -256.958 107.200 -270.141
202406 -2.980 108.200 -3.104
202409 -5.970 108.900 -6.178
202412 5.220 110.700 5.314
202503 40.300 111.100 40.880
202506 -0.400 111.700 -0.404
202509 3.750 112.000 3.773
202512 4.780 113.000 4.767
202603 8.860 112.700 8.860

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42.12 mean?
Harmonic Drive Systems (TSE:6324) has a E10 of 円42.12 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Harmonic Drive Systems and its competitors.
Is Harmonic Drive Systems' E10 too high?
Harmonic Drive Systems' current E10 is 円42.12. Overall, Harmonic Drive Systems has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Harmonic Drive Systems' E10 compare to GEV and ETN?
Harmonic Drive Systems' E10 of 円42.12 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good E10 depends on the Industrial Products 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 Harmonic Drive Systems and its competitors. Harmonic Drive Systems's current E10 is 円42.12. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Harmonic Drive Systems stock overvalued right now?
Based on GuruFocus' analysis, Harmonic Drive Systems (TSE:6324) is currently considered Significantly Overvalued. The stock's GF Value™ is 円3,868.69, compared to a current price of 円7,880.00 — trading 103.7% above its estimated fair value. The current E10 is 円42.12. Harmonic Drive Systems' overall GF Score™ is 67/100 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 Harmonic Drive Systems (TSE:6324), the current E10 is 円42.12 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 Harmonic Drive Systems (TSE:6324) Overvalued in 2026?

Based on GuruFocus' analysis, Harmonic Drive Systems stock appears to be overvalued. The current stock price of 円7,880.00 is trading 103.7% above its estimated GF Value™ of 円3,868.69. GuruFocus considers Harmonic Drive Systems to be Significantly Overvalued.

Key valuation signals for TSE:6324:

  • E10: 円42.12
  • GF Value™: 円3,868.69 vs. price of 円7,880.00 (103.7% above fair value)
  • GF Score™: 67/100 with 6 warning signs

No single metric tells the full story. See the TSE:6324 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Harmonic Drive Systems Business Description

Other Exchanges HSYDF:USAK3R:Germany
Address 6-25-3 Minami-Oi, Shinagawa-ku, Tokyo, JPN, 140-0013
Harmonic Drive Systems manufactures and sells high-precision reduction gears (harmonic reducers) under the Harmonic Drive brand as well as other mechatronics products, including rotary actuators, linear actuators, and AC servo motors. The company also provides planetary gear speed reducers under the AccuDrive and Harmonic Planetary brands. Its products are used in industrial robots, semiconductor production equipment, and other high-precision equipment. HDS was founded in 1970 and is headquartered in Tokyo, Japan.
67GF Score

Get the complete analysis for TSE:6324

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

円7,880.00
Price
円3,868.69
GF Value