Rangdong Light Source & Vacuum Flask JSC (STC:RAL) E10: ₫0.00 (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

STC:RAL Rangdong Light Source & Vacuum Flask JSC STC:RAL
72 GF Score
Price ₫81,000.00
GF Value ₫89,499.83
Valuation Fairly Valued
! 6 Warning Signs
View Full Analysis

What is Rangdong Light Source & Vacuum Flask JSC E10?

Rangdong Light Source & Vacuum Flask JSC STC:RAL 72 E10 is ₫0.00 as of Jun. 2026. GuruFocus rates STC:RAL with a GF Score™ of 72/100 and a GF Value™ of ₫89,499.83 (Fairly Valued). 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.

Rangdong Light Source & Vacuum Flask JSC's adjusted earnings per share data for the three months ended in Jun. 2026 was ₫4,973.000. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is ₫0.00 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Rangdong Light Source & Vacuum Flask JSC's average E10 Growth Rate was 3.50% 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.

As of today (2026-08-12), Rangdong Light Source & Vacuum Flask JSC's current stock price is ₫81000.00. Rangdong Light Source & Vacuum Flask JSC's E10 for the quarter that ended in Jun. 2026 was ₫0.00. Rangdong Light Source & Vacuum Flask JSC's Shiller PE Ratio of today is .

During the past 12 years, the highest Shiller PE Ratio of Rangdong Light Source & Vacuum Flask JSC was 2.25. The lowest was 1.10. And the median was 1.37.


Rangdong Light Source & Vacuum Flask JSC  (STC:RAL) 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.

During the past 12 years, the highest Shiller P/E Ratio of Rangdong Light Source & Vacuum Flask JSC was 2.25. The lowest was 1.10. And the median was 1.37.


Be Aware

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


Rangdong Light Source & Vacuum Flask JSC E10 Related Terms


Rangdong Light Source & Vacuum Flask JSC E10 Historical Data

* Premium members only.

The historical data trend for Rangdong Light Source & Vacuum Flask JSC'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.

Rangdong Light Source & Vacuum Flask JSC E10 Chart

Rangdong Light Source & Vacuum Flask JSC 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 0.00 0.00 0.00 68,367.07 70,851.16

Rangdong Light Source & Vacuum Flask JSC Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 70,347.61 70,984.38 70,851.16 71,940.45 0.00

STC:RAL vs VRT, BE, HUBB: E10 Comparison

For the Electrical Equipment & Parts subindustry, Rangdong Light Source & Vacuum Flask JSC'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.


Rangdong Light Source & Vacuum Flask JSC Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Rangdong Light Source & Vacuum Flask JSC's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Rangdong Light Source & Vacuum Flask JSC's Shiller PE Ratio falls into.


STC:RAL
72GF Score
Rangdong Light Source & Vacuum Flask JSC STC:RAL
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Rangdong Light Source & Vacuum Flask JSC 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, Rangdong Light Source & Vacuum Flask JSC's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=4973/333.9520*333.9520
=4,973.000

Current CPI (Jun. 2026) = 333.9520.

Rangdong Light Source & Vacuum Flask JSC Quarterly Data

per share eps CPI Adj_EPS
201609 2,372.099 241.428 3,281.174
201612 3,024.956 241.432 4,184.160
201703 3,204.453 243.801 4,389.373
201706 2,351.976 244.955 3,206.495
201709 371,966.969 246.819 503,280.190
201712 4,996.733 246.524 6,768.789
201803 3,269.960 249.554 4,375.845
201806 2,112.094 251.989 2,799.083
201809 3,530.847 252.439 4,670.964
201812 4,739.366 251.233 6,299.812
201903 3,462.778 254.202 4,549.145
201906 2,963.805 256.143 3,864.125
201909 4,298.967 256.759 5,591.425
201912 -2,379.591 256.974 -3,092.411
202003 5,025.905 258.115 6,502.571
202006 4,195.039 257.797 5,434.282
202009 4,647.010 260.280 5,962.342
202012 8,562.998 260.474 10,978.563
202103 9,108.710 264.877 11,484.092
202106 6,621.000 271.696 8,138.126
202109 3,492.000 274.310 4,251.250
202112 10,550.943 278.802 12,638.032
202203 10,645.000 287.504 12,364.764
202206 3,888.000 296.311 4,381.901
202209 2,577.000 296.808 2,899.498
202212 13,270.232 296.797 14,931.487
202303 7,952.000 301.836 8,798.110
202306 4,687.000 305.109 5,130.078
202309 4,115.000 307.789 4,464.788
202312 8,261.000 306.746 8,993.687
202403 8,267.000 312.332 8,839.252
202406 5,830.000 314.175 6,196.993
202409 3,254.000 315.301 3,446.484
202412 7,761.000 315.605 8,212.169
202503 4,284.000 319.799 4,473.592
202506 2,965.000 322.561 3,069.707
202509 3,433.000 324.800 3,529.733
202512 4,654.000 324.054 4,796.153
202603 4.951 330.213 5.007
202606 4,973.000 333.952 4,973.000

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 ₫0.00 mean?
Rangdong Light Source & Vacuum Flask JSC (STC:RAL) has a E10 of ₫0.00 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Rangdong Light Source & Vacuum Flask JSC and its competitors.
Is Rangdong Light Source & Vacuum Flask JSC's E10 too high?
Rangdong Light Source & Vacuum Flask JSC's current E10 is ₫0.00. Overall, Rangdong Light Source & Vacuum Flask JSC has a GF Score™ of 72/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Rangdong Light Source & Vacuum Flask JSC's E10 compare to VRT and BE?
Rangdong Light Source & Vacuum Flask JSC's E10 of ₫0.00 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 Rangdong Light Source & Vacuum Flask JSC and its competitors. Rangdong Light Source & Vacuum Flask JSC's current E10 is ₫0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rangdong Light Source & Vacuum Flask JSC stock overvalued right now?
Based on GuruFocus' analysis, Rangdong Light Source & Vacuum Flask JSC (STC:RAL) is currently considered Fairly Valued. The stock's GF Value™ is ₫89,499.83, compared to a current price of ₫81,000.00 — trading 9.5% below its estimated fair value. The current E10 is ₫0.00. Rangdong Light Source & Vacuum Flask JSC's overall GF Score™ is 72/100 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 Rangdong Light Source & Vacuum Flask JSC (STC:RAL), the current E10 is ₫0.00 as of Jun. 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 Rangdong Light Source & Vacuum Flask JSC (STC:RAL) Overvalued in 2026?

Based on GuruFocus' analysis, Rangdong Light Source & Vacuum Flask JSC stock appears to be undervalued. The current stock price of ₫81,000.00 is trading 9.5% below its estimated GF Value™ of ₫89,499.83. GuruFocus considers Rangdong Light Source & Vacuum Flask JSC to be Fairly Valued.

Key valuation signals for STC:RAL:

  • E10: ₫0.00
  • GF Value™: ₫89,499.83 vs. price of ₫81,000.00 (9.5% below fair value)
  • GF Score™: 72/100 with 6 warning signs

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


Rangdong Light Source & Vacuum Flask JSC Business Description

Address 87-89, Ha Dinh, Thanh Xuan Trung Ward, Thanh Xuan District, Ha Noi, VNM
Rangdong Light Source & Vacuum Flask JSC is engaged in the manufacturing and trading of light products, electrical equipment, lighting tools, glass products and water thermos; service of science, technology and technology transfer; consulting and lighting design in civil and industrial; repairing and installing lighting equipment in civil and industrial and others.
72GF Score

Get the complete analysis for STC:RAL

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

₫81,000.00
Price
₫89,499.83
GF Value