Westlake (STU:UEO) Cyclically Adjusted Book per Share: €64.85 (As of Jun. 2026)

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STU:UEO Westlake Corp STU:UEO
61 GF Score
Price €60.46
GF Value €93.34
Valuation Possible Value Trap
! 7 Warning Signs
View Full Analysis

What is Westlake Cyclically Adjusted Book per Share?

Westlake STU:UEO +1.85% 61 Cyclically Adjusted Book per Share is €64.85 as of Jun. 2026. GuruFocus rates STU:UEO with a GF Score™ of 61/100 and a GF Value™ of €93.34 (Possible Value Trap). The stock has 7 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Westlake's adjusted book value per share for the three months ended in Jun. 2026 was €63.021. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €64.85 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Westlake's average Cyclically Adjusted Book Growth Rate was 9.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 13.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 16.90% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 17.10% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Westlake was 19.90% per year. The lowest was 13.00% per year. And the median was 16.70% per year.

As of today (2026-09-16), Westlake's current stock price is €60.46. Westlake's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €64.85. Westlake's Cyclically Adjusted PB Ratio of today is 0.93.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Westlake was 6.42. The lowest was 0.93. And the median was 2.70.


Westlake  (STU:UEO) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Westlake's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=60.46/64.846
=0.93

* 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 Cyclically Adjusted PB Ratio of Westlake was 6.42. The lowest was 0.93. And the median was 2.70.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Westlake Cyclically Adjusted Book per Share Related Terms


Westlake Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Westlake's Cyclically Adjusted Book per Share 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.

Westlake Cyclically Adjusted Book per Share Chart

Westlake Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 35.18 43.78 51.12 58.23 62.53

Westlake Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted Book per Share 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 59.83 61.07 61.62 63.46 64.85

STU:UEO vs SOLS, ESI, NEU: Cyclically Adjusted Book per Share Comparison

For the Specialty Chemicals subindustry, Westlake'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.


Westlake Cyclically Adjusted PB Ratio vs Chemicals Industry

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

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


STU:UEO
61GF Score
Westlake Corp STU:UEO
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Westlake Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

For example, Westlake'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)
=63.021/333.9520*333.9520
=63.021

Current CPI (Jun. 2026) = 333.9520.

Westlake Quarterly Data

Book Value per Share CPI Adj_Book
201609 26.399 241.428 36.516
201612 28.621 241.432 39.589
201703 29.220 243.801 40.025
201706 28.596 244.955 38.985
201709 29.822 246.819 40.350
201712 34.548 246.524 46.800
201803 35.393 249.554 47.363
201806 38.619 251.989 51.180
201809 40.580 252.439 53.683
201812 41.373 251.233 54.995
201903 42.835 254.202 56.273
201906 42.849 256.143 55.865
201909 45.542 256.759 59.234
201912 44.431 256.974 57.741
202003 45.957 258.115 59.460
202006 44.884 257.797 58.143
202009 43.319 260.280 55.580
202012 42.057 260.474 53.921
202103 45.321 264.877 57.140
202106 48.292 271.696 59.358
202109 53.119 274.310 64.668
202112 58.625 278.802 70.222
202203 64.801 287.504 75.270
202206 74.528 296.311 83.995
202209 81.464 296.808 91.659
202212 76.983 296.797 86.620
202303 78.082 301.836 86.390
202306 79.516 305.109 87.033
202309 83.186 307.789 90.257
202312 76.001 306.746 82.742
202403 78.161 312.332 83.571
202406 80.503 314.175 85.571
202409 77.878 315.301 82.485
202412 83.168 315.605 88.003
202503 78.839 319.799 82.328
202506 71.685 322.561 74.217
202509 65.945 324.800 67.803
202512 61.874 324.054 63.764
202603 61.317 330.213 62.011
202606 63.021 333.952 63.021

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of €64.85 mean?
Westlake (STU:UEO) has a Cyclically Adjusted Book per Share of €64.85 as of Jun. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Westlake and its competitors.
Is Westlake's Cyclically Adjusted Book per Share too high?
Westlake's current Cyclically Adjusted Book per Share is €64.85. Overall, Westlake has a GF Score™ of 61/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Westlake's Cyclically Adjusted Book per Share compare to SOLS and ESI?
Westlake's Cyclically Adjusted Book per Share of €64.85 can be compared against companies in the Chemicals industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Chemicals company?
A good Cyclically Adjusted Book per Share depends on the Chemicals industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Westlake and its competitors. Westlake's current Cyclically Adjusted Book per Share is €64.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Westlake stock overvalued right now?
Based on GuruFocus' analysis, Westlake (STU:UEO) is currently considered Possible Value Trap. The stock's GF Value™ is €93.34, compared to a current price of €60.46 — trading 35.2% below its estimated fair value. The current Cyclically Adjusted Book per Share is €64.85. Westlake's overall GF Score™ is 61/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Westlake (STU:UEO), the current Cyclically Adjusted Book per Share is €64.85 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 Westlake (STU:UEO) Overvalued in 2026?

Based on GuruFocus' analysis, Westlake stock appears to be undervalued. The current stock price of €60.46 is trading 35.2% below its estimated GF Value™ of €93.34. GuruFocus considers Westlake to be Possible Value Trap.

Key valuation signals for STU:UEO:

  • Cyclically Adjusted Book per Share: €64.85
  • GF Value™: €93.34 vs. price of €60.46 (35.2% below fair value)
  • GF Score™: 61/100 with 7 warning signs

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


Westlake Business Description

Other Exchanges WLK:USAWLK:Mexico0LVK:UK
Address 2801 Post Oak Boulevard, Suite 600, Houston, TX, USA, 77056
Westlake is a forward-integrated commodity chemicals firm based in Houston. It began as a single low-density polyethylene plant and expanded its capabilities to include ethylene, vinyl chloride monomers, and polyvinyl chloride over the next two decades. The acquisition of Axiall in 2016 made it a North American leader in chlor-alkali and PVC. Today, Westlake has two defined segments: performance and essential materials, and housing and infrastructure products. The HIP segment began operating in 2022 following a series of acquisitions in the building products space. The firm aims to maximize the value of its chemical production by integrating with the HIP segment, realizing the higher margins of finished commercial goods.
61GF Score

Get the complete analysis for STU:UEO

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

€60.46
Price
€93.34
GF Value