Ecolab (STU:ECJ) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

Author: Vera Yuan Vera Yuan
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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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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:ECJ Ecolab Inc STU:ECJ
86 GF Score
Price €234.60
GF Value €245.77
Valuation Fairly Valued
! 2 Warning Signs
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What is Ecolab Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Ecolab  (STU:ECJ) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value 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 PB Ratio should give similar results to regular PB Ratio.


Ecolab Cyclically Adjusted PB Ratio Related Terms


Ecolab Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Ecolab's Cyclically Adjusted PB 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.

Ecolab Cyclically Adjusted PB Ratio Chart

Ecolab Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 8.69 5.32 6.67 8.11 7.84

Ecolab Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB 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 8.15 8.23 7.99 8.01 8.40

STU:ECJ vs SHW, APD, PPG: Cyclically Adjusted PB Ratio Comparison

For the Specialty Chemicals subindustry, Ecolab's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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.


Ecolab Cyclically Adjusted PB Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Ecolab's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Ecolab's Cyclically Adjusted PB Ratio falls into.


STU:ECJ
86GF Score
Ecolab Inc STU:ECJ
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Ecolab Cyclically Adjusted PB Ratio Calculation

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

Ecolab's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Ecolab's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=31.465/333.9520*333.9520
=31.465

Current CPI (Jun. 2026) = 333.9520.

Ecolab Quarterly Data

Book Value per Share CPI Adj_Book
201609 21.187 241.428 29.307
201612 22.647 241.432 31.326
201703 22.173 243.801 30.372
201706 21.174 244.955 28.867
201709 21.371 246.819 28.915
201712 22.030 246.524 29.843
201803 21.615 249.554 28.925
201806 23.446 251.989 31.072
201809 23.792 252.439 31.474
201812 24.486 251.233 32.548
201903 25.543 254.202 33.557
201906 25.235 256.143 32.901
201909 27.407 256.759 35.647
201912 26.953 256.974 35.027
202003 27.923 258.115 36.127
202006 18.375 257.797 23.803
202009 18.075 260.280 23.191
202012 17.737 260.474 22.740
202103 18.809 264.877 23.714
202106 19.854 271.696 24.403
202109 20.959 274.310 25.516
202112 22.232 278.802 26.630
202203 22.355 287.504 25.967
202206 23.892 296.311 26.927
202209 25.409 296.808 28.589
202212 23.910 296.797 26.903
202303 23.809 301.836 26.342
202306 24.377 305.109 26.681
202309 25.915 307.789 28.118
202312 25.600 306.746 27.871
202403 26.668 312.332 28.514
202406 27.247 314.175 28.962
202409 27.132 315.301 28.737
202412 29.955 315.605 31.696
202503 29.073 319.799 30.360
202506 28.086 322.561 29.078
202509 29.308 324.800 30.134
202512 29.601 324.054 30.505
202603 30.937 330.213 31.287
202606 31.465 333.952 31.465

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book 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 Ecolab (STU:ECJ) Overvalued in 2026?

Based on GuruFocus' analysis, Ecolab stock appears to be undervalued. The current stock price of €234.60 is trading 4.5% below its estimated GF Value™ of €245.77. GuruFocus considers Ecolab to be Fairly Valued.

Key valuation signals for STU:ECJ:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €245.77 vs. price of €234.60 (4.5% below fair value)
  • GF Score™: 86/100 with 2 warning signs

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


Ecolab Business Description

Address 1 Ecolab Place, Saint Paul, MN, USA, 55102
Ecolab produces and markets cleaning and sanitation products for the industrial manufacturing, data center, hospitality, healthcare, and life sciences markets. The firm is the global market share leader in this category with a wide array of products and services, including dish and laundry washing systems, pest control, and infection control products. Additionally, Ecolab sells customized water management and cooling solutions across its end markets. The company has a strong hold on the US market and is growing its presence abroad.
86GF Score

Get the complete analysis for STU:ECJ

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

€234.60
Price
€245.77
GF Value