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The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. As of today, Westlake Chemical Partners LP's share price is $22.03.
Westlake Chemical Partners LP's Revenue per Share for the trailing twelve months (TTM) ended in Mar. 2026 was $35.04. Hence, Westlake Chemical Partners LP's PS Ratio for today is 0.63.
Good Sign:
Westlake Chemical Partners LP stock PS Ratio (=0.63) is close to 2-year low of 0.57.
The historical rank and industry rank for Westlake Chemical Partners LP's PS Ratio or its related term are showing as below:
WLKP'
s PS Ratio Range Over the Past 10 Years
Min: 0.3 Med: 0.63 Max: 0.97
Current: 0.64
During the past 13 years, Westlake Chemical Partners LP's highest PS Ratio was 0.97. The lowest was 0.30. And the median was 0.63.
WLKP's PS Ratio is ranked better than 75.6% of 1574
companies
in the Chemicals industry
Industry Median: 1.385
vs WLKP: 0.64
During the past 13 years, Westlake Chemical Partners LP's highest 3-Year average Revenue per Share Growth Rate was 12.60% per year. The lowest was -30.20% per year. And the median was -5.60% per year.
Back to Basics: PS Ratio
Westlake Chemical Partners LP (NYSE:WLKP) PS Ratio Explanation
The PS Ratio is an excellent valuation indicator if you want to compare a stock with its historical valuation or with the stocks in the same industry. The PS Ratio works especially well when you want to compare the stock's current valuation with its historical valuation. The PS Ratio is a great valuation tool for evaluating cyclical businesses where the PE Ratio works poorly. It works the best when comparing the current valuation with the historical valuation because over time, a company's profit margin tends to revert to the mean.
When the PS Ratio is applied to the whole stock market, it can be used to evaluate the current market valuation and projected returns. In this case, the price is the total market cap of all stocks that are traded, and sales are the GDP of the country. This is how Warren Buffett estimates the broad market valuation and project future returns.
The PS Ratio does not tell you how cheap or expensive the stock is. It cannot be used to compare companies in different industries. It works better for companies within the same industry because these companies tend to have similar capital structures and profit margins. It works the best when comparing a company with itself in the past.
Westlake Chemical Partners LP PS Ratio Related Terms
Westlake Chemical Partners LP PS 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 PS Ratio, along with its competitors' market caps and PS 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 PS Ratio vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, Westlake Chemical Partners LP's PS Ratio distribution charts can be found below:
* The bar in red indicates where Westlake Chemical Partners LP's PS Ratio falls into.
Westlake Chemical Partners LP PS Ratio Calculation
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. It is a ratio widely used to value stocks and it was first used by Ken Fisher.
Westlake Chemical Partners LP's Share Price of today is $22.03. Westlake Chemical Partners LP's Revenue per Share for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $35.04.
* 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:
Westlake Chemical Partners LP (WLKP) has a PS Ratio of 0.63 as of Jul. 22, 2026. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Westlake Chemical Partners LP and its competitors. This is near median its historical median of 0.63. Over the past decade, Westlake Chemical Partners LP's PS Ratio has ranged from 0.30 to 0.97. According to the industry distribution chart, Westlake Chemical Partners LP ranks #384 out of 1574 companies in the Chemicals industry, placing it in the top 24.4%.
Is Westlake Chemical Partners LP's PS Ratio too high?
Westlake Chemical Partners LP's current PS Ratio of 0.63 is near median its 10-year median of 0.63. Over the past 10 years, this metric has ranged from a low of 0.30 to a high of 0.97. The Chemicals industry median PS Ratio is 1.39. Westlake Chemical Partners LP's value of 0.63 is 54.5% below this industry median. Based on the distribution chart, Westlake Chemical Partners LP ranks #384 out of 1574 companies in the Chemicals industry, which is in the top quartile — a strong position relative to peers. 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 PS Ratio compare to LXU and ASPI?
According to the Chemicals industry distribution chart, Westlake Chemical Partners LP ranks #384 out of 1574 companies for PS Ratio. This places Westlake Chemical Partners LP in the top 24% of its industry — outperforming the majority of peers. The industry median PS Ratio is 1.39. Westlake Chemical Partners LP's value of 0.63 is 54.5% below this benchmark. Historically, Westlake Chemical Partners LP's own PS Ratio has ranged from 0.30 to 0.97 over the past decade. While the company's 10-year median is 0.63 vs. the industry median of 1.39, Westlake Chemical Partners LP has consistently been below 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 PS Ratio for a Chemicals company?
The median PS Ratio among Chemicals companies is 1.39, based on 1,574 companies in the industry. Companies in the top quartile (top 25%) have a PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Westlake Chemical Partners LP's current PS Ratio of 0.63 is 54.5% below 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 PS Ratio mean?
A high PS Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Westlake Chemical Partners LP and its competitors. For the Chemicals industry, the median PS Ratio is 1.39 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Westlake Chemical Partners LP's current PS Ratio is 0.63, which is near median its own 10-year median of 0.63. 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 $24.32, compared to a current price of $22.03 — trading 9.4% below its estimated fair value. The current PS Ratio is 0.63, which is near median its 10-year median of 0.63 and 54.5% below the Chemicals industry median of 1.39. 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 PS Ratio calculated?
PS Ratio is calculated from a company's financial statements. For Westlake Chemical Partners LP (WLKP), the current PS Ratio is 0.63 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 9.4% below its estimated GF Value™ of $24.32.
GuruFocus considers Westlake Chemical Partners LP to be Fairly Valued.
Key valuation signals for WLKP:
PS Ratio: 0.63 (near median its 10-year median of 0.63)
GF Value™: $24.32 vs. price of $22.03 (9.4% below fair value)
Industry Position: 54.5% below the Chemicals median (#384 of 1574)
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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