Kosmos Energy Ltd. (KOS) stock
Close on Nov 11, 2026Market cap $1.21BP/E –Yield –
Kosmos Energy Ltd. grew revenue 20.9% to $1.68B over the twelve months to Sep 30, 2026. At the latest close the market valued the company at $1.21B.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026
Valuation
- Market cap
- $1.21B
- P/E ratio
- –
- Price to sales
- 0.72
- Price to book
- 1.82
- Dividend yield
- –
- Free cash flow yield
- –
Fundamentals
- Revenue
- $1.68B
- Net income
- -$460.95M
- EPS, diluted
- -$1.00
- Book value per share
- $1.12
- Diluted shares
- 595M
Trading
- Previous close
- $2.11
- Open
- $2.16
- Day's range
- $2.04 – $2.17
- Volume
- 18,717,620
- Average volume (20 days)
- 17,789,798
- Index membership
- Russell 2000 (since Jun 2020), Russell 3000
- Beta (5 years)
- 0.85
- 52-week range
- $0.84 – $3.34
- RSI (14 days)
- 31.5
- Volatility (1 year)
- 88.4%
- Relative volume
- 1.28×
- WACC
- 6.6%
Index membership is inferred from the holdings of funds that track each index (IWM, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2012, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.
| Period | KOS | S&P 500 | Difference | KOS per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | -22.7% | -2.4% | −20.3 pts | ||
| 3 months | -20.3% | -1.2% | −19.2 pts | ||
| Year to date | +124.8% | +12.3% | +112.5 pts | ||
| 1 year | +33.3% | +12.4% | +20.9 pts | ||
| 3 years | -70.8% | +78.8% | −149.6 pts | -33.7% | +21.4% |
| 5 years | -46.5% | +75.2% | −121.6 pts | -11.7% | +11.9% |
| 10 years | -53.8% | +311.1% | −365.0 pts | -7.4% | +15.2% |
Fifteen years at a glance
Fiscal years 2011 to 2025 and trailing twelve months, USD
Revenue
Net income
EPS, diluted
Free cash flow
Press releases
Releases Kosmos Energy filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- Results
- Results
- Update
- Update
- Update
About Kosmos Energy
Crude Petroleum & Natural Gas
Kosmos Energy is a deepwater exploration and production company operating in the upstream oil and gas sector. The company focuses on finding, developing, and extracting hydrocarbon resources to supply global energy needs. Its primary products comprise crude oil, natural gas, and natural gas liquids produced from deepwater fields. The company carries out exploration, appraisal, and development projects to convert discovered resources into active production. While the provided text does not identify specific corporate customers, the company delivers energy commodities to international markets and regional consumers.
Company profile, executives and historyKosmos Energy stock: common questions
What is Kosmos Energy's stock price?
KOS closed at $2.04 on Nov 11, 2026, down 3.32% on the day. Over the past 52 weeks it traded between $0.84 and $3.34.
What is Kosmos Energy's market cap?
Kosmos Energy was worth $1.21B at the close on Nov 11, 2026: the share price times the diluted shares outstanding.
What is KOS's P/E ratio?
Kosmos Energy lost money over the twelve months to Sep 30, 2026 (diluted EPS -$1.00), so it has no meaningful P/E ratio.
How much revenue does Kosmos Energy make?
Kosmos Energy reported revenue of $1.68B for the twelve months to Sep 30, 2026, up 20.9% from a year earlier.
Does Kosmos Energy pay a dividend?
No. Kosmos Energy has not paid a cash dividend over the last twelve months.
How has KOS stock performed over the past year?
Including dividends, KOS returned +33.3% over the past year, against +12.4% for the S&P 500.
How many KOS shares are sold short?
30M shares were sold short at the latest FINRA report, 5.20% of the float, or 2.0 days of average trading volume.
Who are Kosmos Energy's competitors?
Companies most similar to Kosmos Energy by business, industry and size include TALO, CRK, GPOR, VET, MUR.
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