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Westlake Chemical Partners LP stock PB Ratio (=3.03) is close to 3-year high of 3.21.
The historical rank and industry rank for Westlake Chemical Partners LP's PB Ratio or its related term are showing as below:
WLKP'
s PB Ratio Range Over the Past 10 Years
Min: 1.71 Med: 3.02 Max: 6.87
Current: 3.03
During the past 13 years, Westlake Chemical Partners LP's highest PB Ratio was 6.87. The lowest was 1.71. And the median was 3.02.
WLKP's PB Ratio is ranked worse than 74.81% of 1576
companies
in the Chemicals industry
Industry Median: 1.63
vs WLKP: 3.03
During the past 12 months, Westlake Chemical Partners LP's average Book Value Per Share Growth Rate was -3.20% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -4.00% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -1.70% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 7.00% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Westlake Chemical Partners LP was 28.20% per year. The lowest was -40.50% per year. And the median was 1.70% per year.
Back to Basics: PB Ratio
Westlake Chemical Partners LP (NYSE:WLKP) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Westlake Chemical Partners LP PB Ratio Related Terms
Westlake Chemical Partners LP PB Ratio Historical Data
* 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.
For the Chemicals subindustry, Westlake Chemical Partners LP's PB Ratio, along with its competitors' market caps and 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 Chemical Partners LP PB Ratio vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, Westlake Chemical Partners LP's PB Ratio distribution charts can be found below:
* The bar in red indicates where Westlake Chemical Partners LP's PB Ratio falls into.
Westlake Chemical Partners LP PB Ratio Calculation
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Westlake Chemical Partners LP (WLKP) has a PB Ratio of 3.03 as of Jul. 22, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Westlake Chemical Partners LP and its competitors. This is near median its historical median of 3.02. Over the past decade, Westlake Chemical Partners LP's PB Ratio has ranged from 1.71 to 6.87. According to the industry distribution chart, Westlake Chemical Partners LP ranks #1179 out of 1576 companies in the Chemicals industry, placing it in the top 74.8%.
Is Westlake Chemical Partners LP's PB Ratio too high?
Westlake Chemical Partners LP's current PB Ratio of 3.03 is near median its 10-year median of 3.02. Over the past 10 years, this metric has ranged from a low of 1.71 to a high of 6.87. The Chemicals industry median PB Ratio is 1.63. Westlake Chemical Partners LP's value of 3.03 is 85.9% above this industry median. Based on the distribution chart, Westlake Chemical Partners LP ranks #1179 out of 1576 companies in the Chemicals industry, which is below the industry midpoint. Overall, Westlake Chemical Partners LP has a GF Score™ of 84/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Westlake Chemical Partners LP's PB Ratio compare to LXU and ASPI?
According to the Chemicals industry distribution chart, Westlake Chemical Partners LP ranks #1179 out of 1576 companies for PB Ratio. This places Westlake Chemical Partners LP in the lower half of its industry. The industry median PB Ratio is 1.63. Westlake Chemical Partners LP's value of 3.03 is 85.9% above this benchmark. Historically, Westlake Chemical Partners LP's own PB Ratio has ranged from 1.71 to 6.87 over the past decade. While the company's 10-year median is 3.02 vs. the industry median of 1.63, Westlake Chemical Partners LP has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Chemicals company?
The median PB Ratio among Chemicals companies is 1.63, based on 1,576 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Westlake Chemical Partners LP's current PB Ratio of 3.03 is 85.9% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Westlake Chemical Partners LP and its competitors. For the Chemicals industry, the median PB Ratio is 1.63 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Westlake Chemical Partners LP's current PB Ratio is 3.03, which is near median its own 10-year median of 3.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Westlake Chemical Partners LP stock overvalued right now?
Based on GuruFocus' analysis, Westlake Chemical Partners LP (WLKP) is currently considered Fairly Valued. The stock's GF Value™ is $24.33, compared to a current price of $22.03 — trading 9.5% below its estimated fair value. The current PB Ratio is 3.03, which is near median its 10-year median of 3.02 and 85.9% above the Chemicals industry median of 1.63. Westlake Chemical Partners LP's overall GF Score™ is 84/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Westlake Chemical Partners LP (WLKP), the current PB Ratio is 3.03 as of Jul. 22, 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 Chemical Partners LP (WLKP) Overvalued in 2026?
Based on GuruFocus' analysis, Westlake Chemical Partners LP stock appears to be undervalued.
The current stock price of $22.03 is trading 9.5% below its estimated GF Value™ of $24.33.
GuruFocus considers Westlake Chemical Partners LP to be Fairly Valued.
Key valuation signals for WLKP:
PB Ratio: 3.03 (near median its 10-year median of 3.02)
GF Value™: $24.33 vs. price of $22.03 (9.5% below fair value)
Industry Position: 85.9% above the Chemicals median (#1179 of 1576)
No single metric tells the full story. See the WLKP stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Westlake Chemical Partners LP Business Description
Westlake Chemical Partners LP is a part of the chemical industry in the United States. Its operations are conducted through OpCo, it acquires and develops ethylene production facilities, which convert ethane into ethylene. OpCo sells ethylene and its co-products, such as propylene, crude butadiene, pyrolysis gasoline, and hydrogen, to Westlake and other customers located in the United States. Its assets include three ethylene production facilities in Calvert City, Kentucky, and Lake Charles, Louisiana.
84GF Score
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