Star Delta Transformers (BOM:539255) E10: ₹23.75 (As of Mar. 2026)


BOM:539255 Star Delta Transformers Ltd BOM:539255
90 GF Score
Price ₹609.80
GF Value ₹883.86
Valuation Possible Value Trap
! 4 Warning Signs
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What is Star Delta Transformers E10?

Star Delta Transformers BOM:539255 +1.19% 90 E10 is ₹23.75 as of Mar. 2026. GuruFocus rates BOM:539255 with a GF Score™ of 90/100 and a GF Value™ of ₹883.86 (Possible Value Trap). The stock has 4 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.

Star Delta Transformers's adjusted earnings per share data for the three months ended in Mar. 2026 was ₹14.730. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is ₹23.75 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Star Delta Transformers's average E10 Growth Rate was 16.80% per year. During the past 3 years, the average E10 Growth Rate was 17.70% per year. During the past 5 years, the average E10 Growth Rate was 11.80% 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 Star Delta Transformers was 17.70% per year. The lowest was 6.70% per year. And the median was 13.50% per year.

As of today (2026-07-12), Star Delta Transformers's current stock price is ₹609.80. Star Delta Transformers's E10 for the quarter that ended in Mar. 2026 was ₹23.75. Star Delta Transformers's Shiller PE Ratio of today is 25.68.

During the past 13 years, the highest Shiller PE Ratio of Star Delta Transformers was 72.91. The lowest was 4.73. And the median was 17.69.


Star Delta Transformers  (BOM:539255) 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.

Star Delta Transformers's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=609.80/23.75
=25.68

* 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 Star Delta Transformers was 72.91. The lowest was 4.73. And the median was 17.69.


Be Aware

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


Star Delta Transformers E10 Related Terms


Star Delta Transformers E10 Historical Data

* Premium members only.

The historical data trend for Star Delta Transformers'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.

Star Delta Transformers E10 Chart

Star Delta Transformers 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 13.91 14.55 17.19 20.34 23.75

Star Delta Transformers 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 20.34 21.20 22.36 22.63 23.75

BOM:539255 vs GEV, ETN, PH: E10 Comparison

For the Specialty Industrial Machinery subindustry, Star Delta Transformers'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.


Star Delta Transformers Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Star Delta Transformers's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Star Delta Transformers's Shiller PE Ratio falls into.


BOM:539255
90GF Score
Star Delta Transformers Ltd BOM:539255
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Star Delta Transformers 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, Star Delta Transformers'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)
=14.73/164.2724*164.2724
=14.730

Current CPI (Mar. 2026) = 164.2724.

Star Delta Transformers Quarterly Data

per share eps CPI Adj_EPS
201606 1.810 105.961 2.806
201609 -1.100 105.961 -1.705
201612 1.520 105.196 2.374
201703 8.490 105.196 13.258
201706 3.520 107.109 5.399
201709 -2.370 109.021 -3.571
201712 -1.220 109.404 -1.832
201803 7.320 109.786 10.953
201806 2.670 111.317 3.940
201809 3.060 115.142 4.366
201812 10.870 115.142 15.508
201903 2.090 118.202 2.905
201906 6.160 120.880 8.371
201909 8.040 123.175 10.723
201912 -0.500 126.235 -0.651
202003 0.920 124.705 1.212
202006 1.170 127.000 1.513
202009 1.290 130.118 1.629
202012 3.570 130.889 4.481
202103 -0.140 131.771 -0.175
202106 1.100 134.084 1.348
202109 1.340 135.847 1.620
202112 2.510 138.161 2.984
202203 7.220 138.822 8.544
202206 2.140 142.347 2.470
202209 0.470 144.661 0.534
202212 4.920 145.763 5.545
202303 11.660 146.865 13.042
202306 11.460 150.280 12.527
202309 10.360 151.492 11.234
202312 8.160 152.924 8.766
202403 7.070 153.035 7.589
202406 8.500 155.789 8.963
202409 9.580 157.882 9.968
202412 7.140 158.323 7.408
202503 10.200 157.552 10.635
202506 7.570 159.755 7.784
202509 13.240 162.289 13.402
202512 6.870 163.281 6.912
202603 14.730 164.272 14.730

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 ₹23.75 mean?
Star Delta Transformers (BOM:539255) has a E10 of ₹23.75 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Star Delta Transformers and its competitors.
Is Star Delta Transformers' E10 too high?
Star Delta Transformers' current E10 is ₹23.75. Overall, Star Delta Transformers has a GF Score™ of 90/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Star Delta Transformers' E10 compare to GEV and ETN?
Star Delta Transformers' E10 of ₹23.75 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 Star Delta Transformers and its competitors. Star Delta Transformers's current E10 is ₹23.75. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Star Delta Transformers stock overvalued right now?
Based on GuruFocus' analysis, Star Delta Transformers (BOM:539255) is currently considered Possible Value Trap. The stock's GF Value™ is ₹883.86, compared to a current price of ₹609.80 — trading 31% below its estimated fair value. The current E10 is ₹23.75. Star Delta Transformers' overall GF Score™ is 90/100 with 4 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 Star Delta Transformers (BOM:539255), the current E10 is ₹23.75 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 Star Delta Transformers (BOM:539255) Overvalued in 2026?

Based on GuruFocus' analysis, Star Delta Transformers stock appears to be undervalued. The current stock price of ₹609.80 is trading 31% below its estimated GF Value™ of ₹883.86. GuruFocus considers Star Delta Transformers to be Possible Value Trap.

Key valuation signals for BOM:539255:

  • E10: ₹23.75
  • GF Value™: ₹883.86 vs. price of ₹609.80 (31% below fair value)
  • GF Score™: 90/100 with 4 warning signs

No single metric tells the full story. See the BOM:539255 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Star Delta Transformers Business Description

Address 92-A, Industrial Area, Govindpura, Bhopal, MP, IND, 462023
Star Delta Transformers Ltd is a manufacturer of distribution and power transformers. Its operating segments include; Manufacturing of Transformers and Solar Power. The Manufacturing segment offers a range of distribution and power transformers varying from Single Phase Transformers, 3 phase Transformers, Power Transformers, Extra High Voltage Transformers, Solar/Wind Transformers, and Special Purpose Transformers. The Solar segment includes the generation of power from solar plants.
90GF Score

Get the complete analysis for BOM:539255

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

₹609.80
Price
₹883.86
GF Value