Quanta Services (BSP:Q1UA34) E10: R$1.94 (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.
Reviewed by: Charlie Tian Charlie Tian
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.

BSP:Q1UA34 Quanta Services Inc BSP:Q1UA34
87 GF Score
Price R$276.19
GF Value R$203.90
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Quanta Services E10?

Quanta Services BSP:Q1UA34 -3.71% 87 E10 is R$1.94 as of Jun. 2026. GuruFocus rates BSP:Q1UA34 with a GF Score™ of 87/100 and a GF Value™ of R$203.90 (Significantly Overvalued). The stock has 2 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.

Quanta Services's adjusted earnings per share data for the three months ended in Jun. 2026 was R$1.264. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is R$1.94 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Quanta Services's average E10 Growth Rate was 22.40% per year. During the past 3 years, the average E10 Growth Rate was 15.50% per year. During the past 5 years, the average E10 Growth Rate was 15.60% per year. During the past 10 years, the average E10 Growth Rate was 14.30% 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 Quanta Services was 88.70% per year. The lowest was -23.30% per year. And the median was 15.50% per year.

As of today (2026-08-22), Quanta Services's current stock price is R$276.19. Quanta Services's E10 for the quarter that ended in Jun. 2026 was R$1.94. Quanta Services's Shiller PE Ratio of today is 142.37.

During the past 13 years, the highest Shiller PE Ratio of Quanta Services was 182.90. The lowest was 15.14. And the median was 46.64.


Quanta Services  (BSP:Q1UA34) 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.

Quanta Services's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=276.19/1.94
=142.37

* 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 Quanta Services was 182.90. The lowest was 15.14. And the median was 46.64.


Be Aware

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


Quanta Services E10 Related Terms


Quanta Services E10 Historical Data

* Premium members only.

The historical data trend for Quanta Services'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.

Quanta Services E10 Chart

Quanta Services 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 1.05 1.16 0.89 1.84 1.91

Quanta Services 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 1.69 1.64 1.91 1.79 1.94

BSP:Q1UA34 vs FIX, EME, MTZ: E10 Comparison

For the Engineering & Construction subindustry, Quanta Services'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.


Quanta Services Shiller PE Ratio vs Construction Industry

For the Construction industry and Industrials sector, Quanta Services's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Quanta Services's Shiller PE Ratio falls into.


BSP:Q1UA34
87GF Score
Quanta Services Inc BSP:Q1UA34
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Quanta Services 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, Quanta Services'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)
=1.264/333.9520*333.9520
=1.264

Current CPI (Jun. 2026) = 333.9520.

Quanta Services Quarterly Data

per share eps CPI Adj_EPS
201609 0.130 241.428 0.180
201612 0.159 241.432 0.220
201703 0.081 243.801 0.111
201706 0.113 244.955 0.154
201709 0.146 246.819 0.198
201712 0.198 246.524 0.268
201803 0.066 249.554 0.088
201806 0.151 251.989 0.200
201809 0.277 252.439 0.366
201812 0.123 251.233 0.163
201903 0.262 254.202 0.344
201906 0.061 256.143 0.080
201909 0.316 256.759 0.411
201912 0.274 256.974 0.356
202003 0.106 258.115 0.137
202006 0.225 257.797 0.291
202009 0.509 260.280 0.653
202012 0.502 260.474 0.644
202103 0.291 264.877 0.367
202106 0.339 271.696 0.417
202109 0.532 274.310 0.648
202112 0.335 278.802 0.401
202203 0.236 287.504 0.274
202206 0.248 296.311 0.280
202209 0.463 296.808 0.521
202212 0.481 296.797 0.541
202303 0.278 301.836 0.308
202306 0.453 305.109 0.496
202309 0.753 307.789 0.817
202312 0.580 306.746 0.631
202403 0.328 312.332 0.351
202406 0.566 314.175 0.602
202409 0.900 315.301 0.953
202412 1.032 315.605 1.092
202503 0.461 319.799 0.481
202506 0.702 322.561 0.727
202509 1.001 324.800 1.029
202512 0.946 324.054 0.975
202603 0.632 330.213 0.639
202606 1.264 333.952 1.264

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 R$1.94 mean?
Quanta Services (BSP:Q1UA34) has a E10 of R$1.94 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Quanta Services and its competitors.
Is Quanta Services' E10 too high?
Quanta Services' current E10 is R$1.94. Overall, Quanta Services has a GF Score™ of 87/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Quanta Services' E10 compare to FIX and EME?
Quanta Services' E10 of R$1.94 can be compared against companies in the Construction 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 Construction company?
A good E10 depends on the Construction 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 Quanta Services and its competitors. Quanta Services's current E10 is R$1.94. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Quanta Services stock overvalued right now?
Based on GuruFocus' analysis, Quanta Services (BSP:Q1UA34) is currently considered Significantly Overvalued. The stock's GF Value™ is R$203.90, compared to a current price of R$276.19 — trading 35.5% above its estimated fair value. The current E10 is R$1.94. Quanta Services' overall GF Score™ is 87/100 with 2 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 Quanta Services (BSP:Q1UA34), the current E10 is R$1.94 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 Quanta Services (BSP:Q1UA34) Overvalued in 2026?

Based on GuruFocus' analysis, Quanta Services stock appears to be overvalued. The current stock price of R$276.19 is trading 35.5% above its estimated GF Value™ of R$203.90. GuruFocus considers Quanta Services to be Significantly Overvalued.

Key valuation signals for BSP:Q1UA34:

  • E10: R$1.94
  • GF Value™: R$203.90 vs. price of R$276.19 (35.5% above fair value)
  • GF Score™: 87/100 with 2 warning signs

No single metric tells the full story. See the BSP:Q1UA34 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Quanta Services Business Description

Address 2727 North Loop West, Houston, TX, USA, 77008
Quanta Services is a leading provider of specialty contracting services, delivering comprehensive infrastructure solutions for the electric and gas utility, communications, pipeline, and energy industries in the United States, Canada, and Australia. Quanta reports its results under two segments: electric and underground utility and infrastructure.
87GF Score

Get the complete analysis for BSP:Q1UA34

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

R$276.19
Price
R$203.90
GF Value