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). Kosmos Energy's share price for the quarter that ended in Mar. 2026 was £2.23. Kosmos Energy's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 593 Mil. Therefore, Kosmos Energy's market cap for the quarter that ended in Mar. 2026 was £1,323 Mil.
Kosmos Energy's quarterly market cap
declined
from Sep. 2025 (£569 Mil) to Dec. 2025 (£324 Mil) but then
increased
from Dec. 2025 (£324 Mil) to Mar. 2026 (£1,323 Mil).
Kosmos Energy's annual market cap
declined
from Dec. 2023 (£2,496 Mil) to Dec. 2024 (£1,307 Mil) and
declined
from Dec. 2024 (£1,307 Mil) to Dec. 2025 (£324 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. Kosmos Energy's Enterprise Value for Today is £3,109 Mil.
Kosmos Energy (LSE:KOS) 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 companys 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.
Kosmos Energy Market Cap Related Terms
Kosmos Energy Market Cap Historical Data
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The historical data trend for Kosmos Energy'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.
For the Oil & Gas E&P subindustry, Kosmos Energy'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.
Kosmos Energy Market Cap vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Kosmos Energy's Market Cap distribution charts can be found below:
* The bar in red indicates where Kosmos Energy's Market Cap falls into.
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.
Kosmos Energy's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
Kosmos Energy (LSE:KOS) has a Market Cap of £953 Mil as of Jun. 25, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Kosmos Energy and its competitors. According to the industry distribution chart, Kosmos Energy ranks #295 out of 1043 companies in the Oil & Gas industry, placing it in the top 28.3%.
Is Kosmos Energy's Market Cap too high?
Kosmos Energy's current Market Cap is £953 Mil. Based on the distribution chart, Kosmos Energy ranks #295 out of 1043 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Kosmos Energy has a GF Score™ of 67/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Kosmos Energy's Market Cap compare to KRP and DMLP?
According to the Oil & Gas industry distribution chart, Kosmos Energy ranks #295 out of 1043 companies for Market Cap. This puts Kosmos Energy in the upper half of its industry. The industry median Market Cap is 210.36. 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 an Oil & Gas company?
The median Market Cap among Oil & Gas companies is 210.36, based on 1,043 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. 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 Kosmos Energy and its competitors. For the Oil & Gas industry, the median Market Cap is 210.36 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Kosmos Energy's current Market Cap is £953 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Kosmos Energy stock overvalued right now?
Based on GuruFocus' analysis, Kosmos Energy (LSE:KOS) is currently considered Possible Value Trap. The stock's GF Value™ is £2.45, compared to a current price of £1.66 — trading 32.2% below its estimated fair value. The current Market Cap is £953 Mil. Kosmos Energy's overall GF Score™ is 67/100 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 Kosmos Energy (LSE:KOS), the current Market Cap is £953 Mil as of Jun. 25, 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 Kosmos Energy (LSE:KOS) Overvalued in 2026?
Based on GuruFocus' analysis, Kosmos Energy stock appears to be undervalued.
The current stock price of £1.66 is trading 32.2% below its estimated GF Value™ of £2.45.
GuruFocus considers Kosmos Energy to be Possible Value Trap.
Key valuation signals for LSE:KOS:
Market Cap: £953 Mil
GF Value™: £2.45 vs. price of £1.66 (32.2% below fair value)
No single metric tells the full story. See the LSE:KOS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Kosmos Energy Ltd is a deepwater exploration and production company focused on meeting the world's growing demand for energy. It has diversified oil and gas production from assets offshore Ghana, Equatorial Guinea, Mauritania, Senegal and the Gulf of America. The Company had operations in four geographic reporting segments: Ghana, Equatorial Guinea, Mauritania/Senegal and the Gulf of America. The majority of revenue is derived from the Ghana segment.
67GF Score
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