NOV vs. MRO
NOV (National Oilwell Varco, Inc.) and MRO (Marathon Oil Corporation) are both stocks. Both are in the Energy sector — NOV in Oil & Gas Equipment & Services, MRO in Oil & Gas E&P. A 0.60 correlation means they provide meaningful diversification when combined.
Performance
NOV vs. MRO - Performance Comparison
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Returns By Period
NOV
- 1D
- 0.37%
- 1M
- -9.10%
- YTD
- 21.61%
- 6M
- 20.76%
- 1Y
- 45.26%
- 3Y*
- 9.93%
- 5Y*
- 6.05%
- 10Y*
- -4.64%
MRO
- 1D
- —
- 1M
- —
- YTD
- —
- 6M
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
NOV vs. MRO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
NOV National Oilwell Varco, Inc. | 21.61% | 11.30% | -26.81% | -1.83% | 55.72% | -0.89% | -44.93% | -1.69% | -28.28% | -3.23% |
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 NOV and MRO is 0.60, 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 | 0.40 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.60 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.64 |
Correlation (All Time) Calculated using the full available price history since Oct 29, 1996 | 0.60 |
The correlation between NOV and MRO shifts across timeframes, from 0.40 (3 years) to 0.64 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
NOV:
$8.69B
MRO:
$6.58B
NOV:
$1.70B
MRO:
$3.50B
NOV:
$633.00M
MRO:
$4.23B
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Return for Risk
NOV vs. MRO — Risk / Return Rank
NOV
MRO
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
NOV vs. MRO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for National Oilwell Varco, Inc. (NOV) 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.
| NOV | MRO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.21 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 2.82 | — | — |
| Martin ratioReturn relative to average drawdown | 7.25 | — | — |
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Drawdowns
NOV vs. MRO - Drawdown Comparison
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Drawdown Indicators
| NOV | MRO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -89.77% | — | — |
Max Drawdown (1Y)Largest decline over 1 year | -16.10% | — | — |
Max Drawdown (3Y)Largest decline over 3 years | -47.15% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -53.70% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -83.26% | — | — |
Current DrawdownCurrent decline from peak | -73.69% | — | — |
Average DrawdownAverage peak-to-trough decline | -45.22% | — | — |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.27% | — | — |
Volatility
NOV vs. MRO - Volatility Comparison
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Volatility by Period
| NOV | MRO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.17% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 26.09% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 38.62% | — | — |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 42.22% | — | — |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 47.26% | — | — |
Dividends
NOV vs. MRO - Dividend Comparison
NOV's dividend yield for the trailing twelve months is around 2.24%, while MRO has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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% |
NOV National Oilwell Varco, Inc. | 2.24% | 3.26% | 1.88% | 0.99% | 0.96% | 0.37% | 0.36% | 0.80% | 0.78% | 0.56% | 1.63% | 5.49% |
Financials
NOV vs. MRO - Financials Comparison
This section allows you to compare key financial metrics between National Oilwell Varco, Inc. 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
NOV and MRO have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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