KOS vs. MRO
KOS (Kosmos Energy Ltd.) and MRO (Marathon Oil Corporation) are both stocks. Both operate in the Oil & Gas E&P industry within the Energy sector. A 0.58 correlation means they provide meaningful diversification when combined.
Performance
KOS vs. MRO - Performance Comparison
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Returns By Period
KOS
- 1D
- -6.50%
- 1M
- -24.09%
- YTD
- 153.47%
- 6M
- 144.16%
- 1Y
- 15.00%
- 3Y*
- -25.08%
- 5Y*
- -9.98%
- 10Y*
- -7.75%
MRO
- 1D
- —
- 1M
- —
- YTD
- —
- 6M
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
KOS vs. MRO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
KOS Kosmos Energy Ltd. | 153.47% | -73.47% | -49.03% | 5.50% | 83.82% | 47.23% | -58.06% | 44.22% | -40.58% | -2.28% |
MRO Marathon Oil Corporation | 0.00% | 0.00% | 20.15% | -9.29% | 66.91% | 149.77% | -50.38% | -3.93% | -14.37% | -0.82% |
Correlation
The correlation between KOS and MRO is 0.58, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (3Y) Calculated over the trailing 3-year period | 0.35 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.55 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.59 |
Correlation (All Time) Calculated using the full available price history since May 11, 2011 | 0.58 |
The correlation between KOS and MRO shifts across timeframes, from 0.35 (3 years) to 0.59 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
KOS:
$1.37B
MRO:
$6.58B
KOS:
$10.14M
MRO:
$3.50B
KOS:
$95.79M
MRO:
$4.23B
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Return for Risk
KOS vs. MRO — Risk / Return Rank
KOS
MRO
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
KOS vs. MRO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Kosmos Energy Ltd. (KOS) and Marathon Oil Corporation (MRO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| KOS | MRO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.10 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 0.24 | — | — |
| Martin ratioReturn relative to average drawdown | 0.48 | — | — |
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Drawdowns
KOS vs. MRO - Drawdown Comparison
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Drawdown Indicators
| KOS | MRO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -97.15% | — | — |
Max Drawdown (1Y)Largest decline over 1 year | -63.57% | — | — |
Max Drawdown (3Y)Largest decline over 3 years | -89.39% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -89.82% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -94.28% | — | — |
Current DrawdownCurrent decline from peak | -87.64% | — | — |
Average DrawdownAverage peak-to-trough decline | -65.07% | — | — |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 31.33% | — | — |
Volatility
KOS vs. MRO - Volatility Comparison
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Volatility by Period
| KOS | MRO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 20.85% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 72.31% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 87.01% | — | — |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 69.92% | — | — |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 77.05% | — | — |
Dividends
KOS vs. MRO - Dividend Comparison
Neither KOS nor MRO has paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
KOS Kosmos Energy Ltd. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 1.92% | 3.17% | 0.00% | 0.00% | 0.00% | 0.00% |
MRO Marathon Oil Corporation | 0.00% | 0.00% | 1.54% | 1.70% | 1.18% | 1.10% | 1.20% | 1.47% | 1.39% | 1.18% | 1.16% | 5.40% |
Financials
KOS vs. MRO - Financials Comparison
This section allows you to compare key financial metrics between Kosmos Energy Ltd. and Marathon Oil Corporation. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
Frequently Asked Questions
KOS and MRO have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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