| KOS Market Cap History Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Below is a table of the KOS market cap history going back to 6/1/2011:
Also see: KOS Shares Outstanding History and KOS YTD Return |
KOS Market Cap History — Kosmos Energy Capitalization Over Time
As of 4/30/2026 Kosmos Energy has a market cap of 1.83 billion. Investors often follow the KOS market cap history to compare the size of the company over time.
This page shows KOS market capitalization trends over time, with 61 market cap datapoints presented, dating back to 6/1/2011.
| KOS Market Cap History Chart | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
KOS Historical Market Cap: -8.87% CAGR 
Mouse over chart for data details
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| KOS Stock Price Chart |
| About Kosmos Energy Ltd (DE) |
| Kosmos Energy Ltd. is a full cycle, deepwater, independent oil and gas exploration and production company focused along the offshore Atlantic Margins. Its key assets include production offshore Ghana, Equatorial Guinea and the U.S. Gulf of Mexico, as well as gas projects offshore Mauritania and Senegal. Co. has operations in four geographic reporting segments: Ghana, Equatorial Guinea, Mauritania/Senegal and the U.S. Gulf of Mexico. The West Cape Three Points and Deepwater Tano Blocks are located within the Tano Basin, offshore Ghana. This basin contains a petroleum system. We show 61 historical shares outstanding datapoints in our KOS shares outstanding history coverage, used to compute KOS market cap on those dates. Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing KOS market cap history over the course of time is important for investors interested in comparing KOS's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of KOS versus a peer is one thing; comparing KOS market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like KOS can fluctuate over the course of history. With this page we aim to empower investors researching KOS by allowing them to research the KOS market cap history. |
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| Video: The Importance of Market Cap | |
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Video: The Importance of Market Cap
| KOS Share Performance |
| Market Cap Peers |
| Kosmos Energy (KOS) is categorized under the Energy sector; to help you further research historical market cap numbers, below are some other companies in the same sector:
LBRT Market Cap History LGCY Market Cap History LNG Market Cap History LNZA Market Cap History LONE Market Cap History LPI Market Cap History MCEP Market Cap History MGY Market Cap History MIND Market Cap History MMLP Market Cap History More Energy companies » |
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