Quanta Services (STU:QAA) Cyclically Adjusted PS Ratio: (As of Sep. 22, 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.

STU:QAA Quanta Services Inc STU:QAA
92 GF Score
Price €561.20
GF Value €429.18
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Quanta Services Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Quanta Services  (STU:QAA) Cyclically Adjusted PS Ratio Explanation

Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.


Quanta Services Cyclically Adjusted PS Ratio Related Terms


Quanta Services Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for Quanta Services's Cyclically Adjusted PS Ratio 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 Cyclically Adjusted PS Ratio Chart

Quanta Services Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.88 2.03 2.51 3.45 3.48

Quanta Services Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PS Ratio 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 3.26 3.40 3.46 4.29 5.45

STU:QAA vs FIX, EME, MTZ: Cyclically Adjusted PS Ratio Comparison

For the Engineering & Construction subindustry, Quanta Services's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS 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 Cyclically Adjusted PS Ratio vs Construction Industry

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

* The bar in red indicates where Quanta Services's Cyclically Adjusted PS Ratio falls into.


STU:QAA
92GF Score
Quanta Services Inc STU:QAA
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Quanta Services Cyclically Adjusted PS Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.

Quanta Services's Cyclically Adjusted Revenue per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Quanta Services's adjusted Revenue per Share data for the three months ended in Jun. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=53.921/333.9520*333.9520
=53.921

Current CPI (Jun. 2026) = 333.9520.

Quanta Services Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 11.804 241.428 16.328
201612 12.586 241.432 17.409
201703 13.171 243.801 18.041
201706 12.804 244.955 17.456
201709 14.016 246.819 18.964
201712 13.275 246.524 17.983
201803 12.485 249.554 16.707
201806 14.422 251.989 19.113
201809 16.700 252.439 22.092
201812 18.083 251.233 24.037
201903 16.881 254.202 22.177
201906 17.161 256.143 22.374
201909 20.454 256.759 26.603
201912 18.985 256.974 24.672
202003 17.093 258.115 22.115
202006 15.857 257.797 20.541
202009 17.910 260.280 22.979
202012 16.844 260.474 21.596
202103 15.539 264.877 19.591
202106 17.221 271.696 21.167
202109 19.712 274.310 23.998
202112 23.221 278.802 27.814
202203 23.871 287.504 27.728
202206 26.793 296.311 30.197
202209 29.981 296.808 33.733
202212 29.365 296.797 33.041
202303 27.766 301.836 30.720
202306 31.180 305.109 34.128
202309 34.724 307.789 37.676
202312 36.128 306.746 39.332
202403 31.042 312.332 33.191
202406 34.692 314.175 36.876
202409 39.259 315.301 41.581
202412 40.790 315.605 43.161
202503 39.232 319.799 40.968
202506 39.593 322.561 40.991
202509 43.105 324.800 44.320
202512 44.403 324.054 45.759
202603 44.258 330.213 44.759
202606 53.921 333.952 53.921

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue per Share.

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.

Is Quanta Services (STU:QAA) Overvalued in 2026?

Based on GuruFocus' analysis, Quanta Services stock appears to be overvalued. The current stock price of €561.20 is trading 30.8% above its estimated GF Value™ of €429.18. GuruFocus considers Quanta Services to be Significantly Overvalued.

Key valuation signals for STU:QAA:

  • Cyclically Adjusted PS Ratio:
  • GF Value™: €429.18 vs. price of €561.20 (30.8% above fair value)
  • GF Score™: 92/100 with 2 warning signs

No single metric tells the full story. See the STU:QAA 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.
92GF Score

Get the complete analysis for STU:QAA

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

€561.20
Price
€429.18
GF Value