Westlake (LTS:0LVK) Cyclically Adjusted Book per Share: $66.16 (As of Mar. 2026)

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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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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.

LTS:0LVK Westlake Corp LTS:0LVK
68 GF Score
Price $76.46
GF Value $107.11
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Westlake Cyclically Adjusted Book per Share?

Westlake LTS:0LVK +0.05% 68 Cyclically Adjusted Book per Share is $66.16 as of Mar. 2026. GuruFocus rates LTS:0LVK with a GF Score™ of 68/100 and a GF Value™ of $107.11 (Modestly Undervalued). The stock has 4 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 Mar. 2026 was $66.716. 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 $66.16 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Westlake's average Cyclically Adjusted Book Growth Rate was 9.70% 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 (2026-07-24), Westlake's current stock price is $76.46. Westlake's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $66.16. Westlake's Cyclically Adjusted PB Ratio of today is 1.16.

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 2.73.


Westlake  (LTS:0LVK) 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
=76.46/66.16
=1.16

* 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 2.73.


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 36.38 43.56 51.25 58.41 64.48

Westlake Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 59.08 61.79 61.98 64.48 66.16

LTS:0LVK vs ESI, EMN, AXTA: 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.


LTS:0LVK
68GF Score
Westlake Corp LTS:0LVK
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 Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=66.716/330.2130*330.2130
=66.716

Current CPI (Mar. 2026) = 330.2130.

Westlake Quarterly Data

Book Value per Share CPI Adj_Book
201606 26.705 241.018 36.588
201609 26.825 241.428 36.690
201612 27.334 241.432 37.385
201703 28.356 243.801 38.406
201706 29.762 244.955 40.121
201709 31.516 246.819 42.164
201712 37.661 246.524 50.446
201803 39.670 249.554 52.492
201806 41.357 251.989 54.195
201809 43.371 252.439 56.733
201812 43.513 251.233 57.192
201903 43.797 254.202 56.893
201906 44.586 256.143 57.479
201909 45.452 256.759 58.455
201912 45.644 256.974 58.653
202003 46.157 258.115 59.050
202006 46.214 257.797 59.196
202009 46.578 260.280 59.093
202012 47.274 260.474 59.931
202103 48.864 264.877 60.917
202106 52.837 271.696 64.217
202109 57.095 274.310 68.731
202112 62.189 278.802 73.657
202203 67.652 287.504 77.702
202206 73.463 296.311 81.868
202209 75.365 296.808 83.847
202212 77.968 296.797 86.746
202303 80.625 301.836 88.205
202306 82.578 305.109 89.372
202309 83.928 307.789 90.043
202312 79.876 306.746 85.987
202403 80.354 312.332 84.954
202406 82.235 314.175 86.433
202409 82.844 315.301 86.762
202412 82.097 315.605 85.897
202503 81.178 319.799 83.821
202506 80.147 322.561 82.048
202509 73.494 324.800 74.719
202512 68.735 324.054 70.041
202603 66.716 330.213 66.716

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 $66.16 mean?
Westlake (LTS:0LVK) has a Cyclically Adjusted Book per Share of $66.16 as of Mar. 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 $66.16. Overall, Westlake has a GF Score™ of 68/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Westlake's Cyclically Adjusted Book per Share compare to ESI and EMN?
Westlake's Cyclically Adjusted Book per Share of $66.16 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 $66.16. 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 (LTS:0LVK) is currently considered Modestly Undervalued. The stock's GF Value™ is $107.11, compared to a current price of $76.46 — trading 28.6% below its estimated fair value. The current Cyclically Adjusted Book per Share is $66.16. Westlake's overall GF Score™ is 68/100 with 4 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 (LTS:0LVK), the current Cyclically Adjusted Book per Share is $66.16 as of Mar. 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 (LTS:0LVK) Overvalued in 2026?

Based on GuruFocus' analysis, Westlake stock appears to be undervalued. The current stock price of $76.46 is trading 28.6% below its estimated GF Value™ of $107.11. GuruFocus considers Westlake to be Modestly Undervalued.

Key valuation signals for LTS:0LVK:

  • Cyclically Adjusted Book per Share: $66.16
  • GF Value™: $107.11 vs. price of $76.46 (28.6% below fair value)
  • GF Score™: 68/100 with 4 warning signs

No single metric tells the full story. See the LTS:0LVK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Westlake Business Description

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.
68GF Score

Get the complete analysis for LTS:0LVK

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

$76.46
Price
$107.11
GF Value