Watsco (MIL:1WSO) Cyclically Adjusted PB Ratio: (As of Jul. 31, 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.

MIL:1WSO Watsco Inc MIL:1WSO
86 GF Score
Price €354.60
GF Value €474.76
! 3 Warning Signs
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What is Watsco Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Watsco  (MIL:1WSO) 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.


Watsco Cyclically Adjusted PB Ratio Related Terms


Watsco Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Watsco'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.

Watsco Cyclically Adjusted PB Ratio Chart

Watsco 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 9.01 6.47 10.16 10.17 6.60

Watsco 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 8.97 8.02 6.60 6.89 0.00

MIL:1WSO vs QXO, WCC, AIT: Cyclically Adjusted PB Ratio Comparison

For the Industrial Distribution subindustry, Watsco'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.


Watsco Cyclically Adjusted PB Ratio vs Industrial Distribution Industry

For the Industrial Distribution industry and Industrials sector, Watsco's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


MIL:1WSO
86GF Score
Watsco Inc MIL:1WSO
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Watsco 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.

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

For example, Watsco'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)
=63.105/333.9520*333.9520
=63.105

Current CPI (Jun. 2026) = 333.9520.

Watsco Quarterly Data

Book Value per Share CPI Adj_Book
201609 26.058 241.428 36.044
201612 26.837 241.432 37.121
201703 25.647 243.801 35.131
201706 25.390 244.955 34.615
201709 24.698 246.819 33.417
201712 29.460 246.524 39.908
201803 28.056 249.554 37.544
201806 30.430 251.989 40.328
201809 31.307 252.439 41.416
201812 31.626 251.233 42.039
201903 31.400 254.202 41.251
201906 31.856 256.143 41.533
201909 34.391 256.759 44.730
201912 33.782 256.974 43.902
202003 33.141 258.115 42.878
202006 33.214 257.797 43.026
202009 32.864 260.280 42.166
202012 31.684 260.474 40.622
202103 32.405 264.877 40.856
202106 33.764 271.696 41.501
202109 36.053 274.310 43.892
202112 37.929 278.802 45.432
202203 40.216 287.504 46.713
202206 44.523 296.311 50.179
202209 49.383 296.808 55.563
202212 45.967 296.797 51.721
202303 46.248 301.836 51.169
202306 48.143 305.109 52.694
202309 52.897 307.789 57.393
202312 51.779 306.746 56.371
202403 57.675 312.332 61.667
202406 60.127 314.175 63.912
202409 60.161 315.301 63.720
202412 62.882 315.605 66.538
202503 60.900 319.799 63.595
202506 59.025 322.561 61.109
202509 59.130 324.800 60.796
202512 58.539 324.054 60.327
202603 58.768 330.213 59.433
202606 63.105 333.952 63.105

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 Watsco (MIL:1WSO) Overvalued in 2026?

Based on GuruFocus' analysis, Watsco stock appears to be undervalued. The current stock price of €354.60 is trading 25.3% below its estimated GF Value™ of €474.76.

Key valuation signals for MIL:1WSO:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €474.76 vs. price of €354.60 (25.3% below fair value)
  • GF Score™: 86/100 with 3 warning signs

No single metric tells the full story. See the MIL:1WSO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Watsco Business Description

Address 2665 South Bayshore Drive, Suite 901, Miami, FL, USA, 33133
Watsco is the largest HVAC and refrigeration products distributor in North America with approximately 13% market share. The company primarily operates in the United States (90% of revenue) with significant exposure in the Sunbelt states. Watsco also has operations in Canada, Latin America, and the Caribbean. The company's customer base comprises more than 120,000 dealers and contractors serving the replacement and new-construction HVAC/R markets for residential and light-commercial applications. As much as 20% of residential HVAC units are distributed through Watsco in any given year. Revenue is approximately 75%-80% residential HVAC and 20%-25% commercial, with relatively small exposure to more complex "applied" solutions.
86GF Score

Get the complete analysis for MIL:1WSO

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

€354.60
Price
€474.76
GF Value