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.
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.
Westlake Chemical Partners LPWLKP +0.28%81 Cyclically Adjusted PS Ratio is 0.45 as of Sep. 14, 2026, which is 13% above its 10-year median of 0.40. GuruFocus rates WLKP with a GF Score™ of 81/100 and a GF Value™ of $24.36 (Modestly Undervalued). The stock has 6 warning signs investors should review. Among 1,281 Chemicals companies, Westlake Chemical Partners LP ranks better than 82.59% on this metric.
The historical rank and industry rank for Westlake Chemical Partners LP's Cyclically Adjusted PS Ratio or its related term are showing as below:
WLKP'
s Cyclically Adjusted PS Ratio Range Over the Past 10 Years
Min: 0.33 Med: 0.4 Max: 0.48
Current: 0.45
During the past years, Westlake Chemical Partners LP's highest Cyclically Adjusted PS Ratio was 0.48. The lowest was 0.33. And the median was 0.40.
WLKP's Cyclically Adjusted PS Ratio is ranked better than 82.59% of 1281
companies
in the Chemicals industry
Industry Median: 1.32
vs WLKP: 0.45
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 PS Ratio. The Cyclically Adjusted Revenue per Share is the average of the inflation adjusted revenue per share of a company over the past 10 years.
Westlake Chemical Partners LP's adjusted revenue per share data for the three months ended in Jun. 2026 was $8.429. Add all the adjusted revenue per share for the past 10 years together and divide 10 will get our Cyclically Adjusted Revenue per Share, which is $47.81 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Westlake Chemical Partners LP (NYSE:WLKP) Cyclically Adjusted PS Ratio Explanation
Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue 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 PS Ratio should give similar results to regular PS Ratio.
Westlake Chemical Partners LP Cyclically Adjusted PS Ratio Related Terms
Westlake Chemical Partners LP Cyclically Adjusted 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.
Westlake Chemical Partners LP Cyclically Adjusted PS Ratio Chart
WLKP vs LXU, TROX, ASPI: Cyclically Adjusted PS Ratio Comparison
For the Chemicals subindustry, Westlake Chemical Partners LP's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted 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 Cyclically Adjusted PS Ratio vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, Westlake Chemical Partners LP's Cyclically Adjusted PS Ratio distribution charts can be found below:
* The bar in red indicates where Westlake Chemical Partners LP's Cyclically Adjusted PS Ratio falls into.
Westlake Chemical Partners LP Cyclically Adjusted PS Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS 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 PS Ratio.
* 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.
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.
What does a Cyclically Adjusted PS Ratio of 0.45 mean?
Westlake Chemical Partners LP (WLKP) has a Cyclically Adjusted PS Ratio of 0.45 as of Sep. 14, 2026. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Westlake Chemical Partners LP and its competitors. This is 13% above median its historical median of 0.40. Over the past decade, Westlake Chemical Partners LP's Cyclically Adjusted PS Ratio has ranged from 0.33 to 0.48. According to the industry distribution chart, Westlake Chemical Partners LP ranks #223 out of 1281 companies in the Chemicals industry, placing it in the top 17.4%.
Is Westlake Chemical Partners LP's Cyclically Adjusted PS Ratio too high?
Westlake Chemical Partners LP's current Cyclically Adjusted PS Ratio of 0.45 is 13% above median its 10-year median of 0.40. Over the past 10 years, this metric has ranged from a low of 0.33 to a high of 0.48. The Chemicals industry median Cyclically Adjusted PS Ratio is 1.32. Westlake Chemical Partners LP's value of 0.45 is 65.9% below this industry median. Based on the distribution chart, Westlake Chemical Partners LP ranks #223 out of 1281 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 81/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Westlake Chemical Partners LP's Cyclically Adjusted PS Ratio compare to LXU and TROX?
According to the Chemicals industry distribution chart, Westlake Chemical Partners LP ranks #223 out of 1281 companies for Cyclically Adjusted PS Ratio. This places Westlake Chemical Partners LP in the top 17% of its industry — outperforming the majority of peers. The industry median Cyclically Adjusted PS Ratio is 1.32. Westlake Chemical Partners LP's value of 0.45 is 65.9% below this benchmark. Historically, Westlake Chemical Partners LP's own Cyclically Adjusted PS Ratio has ranged from 0.33 to 0.48 over the past decade. While the company's 10-year median is 0.40 vs. the industry median of 1.32, 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 Cyclically Adjusted PS Ratio for a Chemicals company?
The median Cyclically Adjusted PS Ratio among Chemicals companies is 1.32, based on 1,281 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted 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 Cyclically Adjusted PS Ratio of 0.45 is 65.9% 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 Cyclically Adjusted PS Ratio mean?
A high Cyclically Adjusted PS Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Westlake Chemical Partners LP and its competitors. For the Chemicals industry, the median Cyclically Adjusted PS Ratio is 1.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Westlake Chemical Partners LP's current Cyclically Adjusted PS Ratio is 0.45, which is 13% above median its own 10-year median of 0.40. 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 Modestly Undervalued. The stock's GF Value™ is $24.36, compared to a current price of $21.58 — trading 11.4% below its estimated fair value. The current Cyclically Adjusted PS Ratio is 0.45, which is 13% above median its 10-year median of 0.40 and 65.9% below the Chemicals industry median of 1.32. Westlake Chemical Partners LP's overall GF Score™ is 81/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PS Ratio calculated?
Cyclically Adjusted PS Ratio is calculated from a company's financial statements. For Westlake Chemical Partners LP (WLKP), the current Cyclically Adjusted PS Ratio is 0.45 as of Sep. 14, 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 $21.58 is trading 11.4% below its estimated GF Value™ of $24.36.
GuruFocus considers Westlake Chemical Partners LP to be Modestly Undervalued.
Key valuation signals for WLKP:
Cyclically Adjusted PS Ratio: 0.45 (13% above median its 10-year median of 0.40)
GF Value™: $24.36 vs. price of $21.58 (11.4% below fair value)
Industry Position: 65.9% below the Chemicals median (#223 of 1281)
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 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.
81GF Score
Get the complete analysis for WLKP
Cyclically Adjusted PS Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
WLKP has been successfully added to your 
