LYB (LyondellBasell Industries NV) Market Cap: $18,899 Mil (As of Jul. 14, 2026)

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LYB LyondellBasell Industries NV LYB
61 GF Score
Price $58.55
GF Value $71.83
Valuation Modestly Undervalued
! 7 Warning Signs
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What is LyondellBasell Industries NV Market Cap?

LyondellBasell Industries NV LYB +0.39% 61 Market Cap is $18,899 Mil as of Jul. 14, 2026. GuruFocus rates LYB with a GF Score™ of 61/100 and a GF Value™ of $71.83 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 1,632 Chemicals companies, LyondellBasell Industries NV ranks better than 98.47% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). LyondellBasell Industries NV's share price for the quarter that ended in Mar. 2026 was $80.56. LyondellBasell Industries NV's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 323 Mil. Therefore, LyondellBasell Industries NV's market cap for the quarter that ended in Mar. 2026 was $26,002 Mil.

LyondellBasell Industries NV's quarterly market cap declined from Sep. 2025 ($15,783 Mil) to Dec. 2025 ($13,946 Mil) but then increased from Dec. 2025 ($13,946 Mil) to Mar. 2026 ($26,002 Mil).

LyondellBasell Industries NV's annual market cap declined from Dec. 2023 ($30,852 Mil) to Dec. 2024 ($24,055 Mil) and declined from Dec. 2024 ($24,055 Mil) to Dec. 2025 ($13,946 Mil).

Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. LyondellBasell Industries NV's Enterprise Value for Today is $30,641 Mil.


LyondellBasell Industries NV  (NYSE:LYB) Market Cap Explanation

Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the company’s debt. The real price you pay is the Enterprise Value.

Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.


LyondellBasell Industries NV Market Cap Related Terms


LyondellBasell Industries NV Market Cap Historical Data

* Premium members only.

The historical data trend for LyondellBasell Industries NV's Market Cap 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.

LyondellBasell Industries NV Market Cap Chart

LyondellBasell Industries NV Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 30,393.11 27,067.78 30,851.84 24,055.31 13,946.28

LyondellBasell Industries NV Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Market Cap 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 22,735.33 18,609.40 15,782.69 13,946.28 26,002.35

LYB vs DD, IFF, ALB: Market Cap Comparison

For the Specialty Chemicals subindustry, LyondellBasell Industries NV's Market Cap, along with its competitors' market caps and Market Cap 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.


LyondellBasell Industries NV Market Cap vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, LyondellBasell Industries NV's Market Cap distribution charts can be found below:

* The bar in red indicates where LyondellBasell Industries NV's Market Cap falls into.


LYB
61GF Score
LyondellBasell Industries NV LYB
Market Cap is just one metric. See GF Score™, valuation, warning signs, and more.
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LyondellBasell Industries NV Market Cap Calculation

Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.

LyondellBasell Industries NV's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as

Market Cap (A: Dec. 2025 )=Share Price (A: Dec. 2025 )*Shares Outstanding (EOP) (A: Dec. 2025 )
=$43.3*322.085
=$13,946

LyondellBasell Industries NV's Market Cap for the quarter that ended in Mar. 2026 is calculated as

Market Cap (Q: Mar. 2026 )=Share Price (Q: Mar. 2026 )*Shares Outstanding (EOP) (Q: Mar. 2026 )
=$80.56*322.770
=$26,002

* 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.

Frequently Asked Questions Learn more about Market Cap →
What does a Market Cap of $18,899 Mil mean?
LyondellBasell Industries NV (LYB) has a Market Cap of $18,899 Mil as of Jul. 14, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on LyondellBasell Industries NV and its competitors. According to the industry distribution chart, LyondellBasell Industries NV ranks #25 out of 1632 companies in the Chemicals industry, placing it in the top 1.5%.
Is LyondellBasell Industries NV's Market Cap too high?
LyondellBasell Industries NV's current Market Cap is $18,899 Mil. The Chemicals industry median Market Cap is 289.34. LyondellBasell Industries NV's value of $18,899 Mil is 6431.7% above this industry median. Based on the distribution chart, LyondellBasell Industries NV ranks #25 out of 1632 companies in the Chemicals industry, which is in the top quartile — a strong position relative to peers. Overall, LyondellBasell Industries NV has a GF Score™ of 61/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does LyondellBasell Industries NV's Market Cap compare to DD and IFF?
According to the Chemicals industry distribution chart, LyondellBasell Industries NV ranks #25 out of 1632 companies for Market Cap. This places LyondellBasell Industries NV in the top 2% of its industry — outperforming the majority of peers. The industry median Market Cap is 289.34. LyondellBasell Industries NV's value of $18,899 Mil is 6431.7% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Chemicals company?
The median Market Cap among Chemicals companies is 289.34, based on 1,632 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. LyondellBasell Industries NV's current Market Cap of $18,899 Mil is 6431.7% 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 Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on LyondellBasell Industries NV and its competitors. For the Chemicals industry, the median Market Cap is 289.34 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. LyondellBasell Industries NV's current Market Cap is $18,899 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is LyondellBasell Industries NV stock overvalued right now?
Based on GuruFocus' analysis, LyondellBasell Industries NV (LYB) is currently considered Modestly Undervalued. The stock's GF Value™ is $71.83, compared to a current price of $58.55 — trading 18.5% below its estimated fair value. The current Market Cap is $18,899 Mil and 6431.7% above the Chemicals industry median of 289.34. LyondellBasell Industries NV'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 Market Cap calculated?
Market Cap is calculated from a company's financial statements. For LyondellBasell Industries NV (LYB), the current Market Cap is $18,899 Mil as of Jul. 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 LyondellBasell Industries NV (LYB) Overvalued in 2026?

Based on GuruFocus' analysis, LyondellBasell Industries NV stock appears to be undervalued. The current stock price of $58.55 is trading 18.5% below its estimated GF Value™ of $71.83. GuruFocus considers LyondellBasell Industries NV to be Modestly Undervalued.

Key valuation signals for LYB:

  • Market Cap: $18,899 Mil
  • GF Value™: $71.83 vs. price of $58.55 (18.5% below fair value)
  • GF Score™: 61/100 with 7 warning signs
  • Industry Position: 6431.7% above the Chemicals median (#25 of 1632)

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


LyondellBasell Industries NV Business Description

Address One Vine Street, 4th Floor, London, GBR, W1J0AH
LyondellBasell is a petrochemical producer with operations in the United States, Europe, and Asia. The company is the world's largest producer of polypropylene and also a major producer of polyethylene and propylene oxide. Its chemicals are used in various consumer and industrial end products. Well over half of LyondellBasell's production comes from its North American operations.
61GF Score

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Market Cap is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$58.55
Price
$71.83
GF Value