OKE vs. KMI

Last updated Jun 3, 2026

OKE (ONEOK, Inc.) and KMI (Kinder Morgan, Inc.) are both stocks. Both operate in the Oil & Gas Midstream industry within the Energy sector. Over the past 10 years, OKE returned 13.69%/yr vs 11.24%/yr for KMI. A 0.67 correlation means they provide meaningful diversification when combined.

Performance

OKE vs. KMI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ONEOK, Inc. (OKE) and Kinder Morgan, Inc. (KMI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OKE achieves a 21.04% return, which is significantly higher than KMI's 16.54% return. Over the past 10 years, OKE has outperformed KMI with an annualized return of 13.69%, while KMI has yielded a comparatively lower 11.24% annualized return.

OKE

• 1D: 2.08%
• 1M: -2.88%
• YTD: 21.04%
• 6M: 21.70%
• 1Y: 10.89%
• 3Y*: 19.88%
• 5Y*: 16.30%
• 10Y*: 13.69%

KMI

• 1D: 1.91%
• 1M: -2.46%
• YTD: 16.54%
• 6M: 19.32%
• 1Y: 14.28%
• 3Y*: 29.77%
• 5Y*: 17.16%
• 10Y*: 11.24%

*Multi-year figures are annualized to reflect compound growth (CAGR)

OKE vs. KMI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OKE ONEOK, Inc.	21.04%	-22.94%	50.10%	13.21%	18.86%	64.67%	-43.45%	47.76%	6.27%	-2.12%
KMI Kinder Morgan, Inc.	16.54%	4.74%	64.42%	4.10%	21.23%	23.75%	-30.77%	44.43%	-11.18%	-10.56%

Correlation

The correlation between OKE and KMI is 0.61, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.61
Correlation (3Y) Calculated over the trailing 3-year period	0.70
Correlation (5Y) Calculated over the trailing 5-year period	0.77
Correlation (10Y) Calculated over the trailing 10-year period	0.73
Correlation (All Time) Calculated using the full available price history since Feb 14, 2011	0.67

The correlation between OKE and KMI shifts across timeframes, from 0.61 (1 year) to 0.77 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap OKE : $54.77B KMI : $69.95B
EPS OKE : $5.61 KMI : $1.53
PE Ratio OKE : 15.46 KMI : 20.55
PEG Ratio OKE : 1.10 KMI : 1.25
PS Ratio OKE : 1.55 KMI : 3.99
PB Ratio OKE : 2.45 KMI : 2.23
Total Revenue (TTM) OKE : $35.20B KMI : $17.52B
Gross Profit (TTM) OKE : $8.43B KMI : $5.86B
EBITDA (TTM) OKE : $7.85B KMI : $6.90B

Return for Risk

OKE vs. KMI — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

OKE

OKE Risk / Return Rank: 51
OKE Sharpe Ratio Rank: 55
OKE Sortino Ratio Rank: 46
OKE Omega Ratio Rank: 46
OKE Calmar Ratio Rank: 55
OKE Martin Ratio Rank: 55

KMI

KMI Risk / Return Rank: 61
KMI Sharpe Ratio Rank: 63
KMI Sortino Ratio Rank: 55
KMI Omega Ratio Rank: 54
KMI Calmar Ratio Rank: 68
KMI Martin Ratio Rank: 66

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

OKE vs. KMI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ONEOK, Inc. (OKE) and Kinder Morgan, Inc. (KMI). 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.

	OKE	KMI	Difference
Sharpe ratio Return per unit of total volatility	0.42	0.71	-0.28
Sortino ratio Return per unit of downside risk	0.71	1.06	-0.35
Omega ratio Gain probability vs. loss probability	1.09	1.14	-0.05
Calmar ratio Return relative to maximum drawdown	0.63	1.51	-0.88
Martin ratio Return relative to average drawdown	1.44	3.07	-1.63
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OKE vs. KMI - Sharpe Ratio Comparison

The current OKE Sharpe Ratio is 0.42, which is lower than the KMI Sharpe Ratio of 0.71. The chart below compares the historical Sharpe Ratios of OKE and KMI, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	OKE	KMI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.42	0.71	-0.28
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.58	0.76	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.35	0.41	-0.05
Sharpe Ratio (All Time) Calculated using the full available price history	0.39	0.17	+0.22

Drawdowns

OKE vs. KMI - Drawdown Comparison

The maximum OKE drawdown since its inception was -80.17%, which is greater than KMI's maximum drawdown of -72.70%. Use the drawdown chart below to compare losses from any high point for OKE and KMI.

Drawdown Indicators

	OKE	KMI	Difference
Max Drawdown Largest peak-to-trough decline	-80.17%	-72.70%	-7.47%
Max Drawdown (1Y) Largest decline over 1 year	-21.02%	-11.11%	-9.91%
Max Drawdown (3Y) Largest decline over 3 years	-42.17%	-18.40%	-23.77%
Max Drawdown (5Y) Largest decline over 5 years	-42.17%	-20.31%	-21.86%
Max Drawdown (10Y) Largest decline over 10 years	-80.17%	-55.13%	-25.04%
Current Drawdown Current decline from peak	-20.00%	-8.36%	-11.64%
Average Drawdown Average peak-to-trough decline	-16.67%	-32.06%	+15.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.18%	5.47%	+3.71%

Volatility

OKE vs. KMI - Volatility Comparison

ONEOK, Inc. (OKE) has a higher volatility of 10.58% compared to Kinder Morgan, Inc. (KMI) at 7.20%. This indicates that OKE's price experiences larger fluctuations and is considered to be riskier than KMI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OKE	KMI	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.58%	7.20%	+3.38%
Volatility (6M) Calculated over the trailing 6-month period	20.68%	15.03%	+5.65%
Volatility (1Y) Calculated over the trailing 1-year period	26.00%	20.43%	+5.57%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.30%	22.58%	+5.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	38.89%	27.75%	+11.14%

Dividends

OKE vs. KMI - Dividend Comparison

OKE's dividend yield for the trailing twelve months is around 4.84%, more than KMI's 3.74% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
KMI Kinder Morgan, Inc.	3.74%	4.24%	4.18%	6.38%	6.10%	6.76%	7.59%	4.49%	4.71%	2.77%	2.41%	12.94%
OKE ONEOK, Inc.	4.84%	5.61%	3.94%	5.44%	5.69%	6.36%	9.74%	4.66%	6.01%	5.09%	4.28%	9.85%

Financials

OKE vs. KMI - Profitability Comparison

The chart below illustrates the profitability comparison between ONEOK, Inc. and Kinder Morgan, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

OKE - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, ONEOK, Inc. reported a gross profit of 2.57B and revenue of 9.62B. Therefore, the gross margin over that period was 26.7%.

KMI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Kinder Morgan, Inc. reported a gross profit of 0.00 and revenue of 4.83B. Therefore, the gross margin over that period was 0.0%.

OKE - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, ONEOK, Inc. reported an operating income of 1.43B and revenue of 9.62B, resulting in an operating margin of 14.9%.

KMI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Kinder Morgan, Inc. reported an operating income of 1.44B and revenue of 4.83B, resulting in an operating margin of 29.9%.

OKE - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, ONEOK, Inc. reported a net income of 774.00M and revenue of 9.62B, resulting in a net margin of 8.1%.

KMI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Kinder Morgan, Inc. reported a net income of 1.06B and revenue of 4.83B, resulting in a net margin of 22.0%.

Frequently Asked Questions

Can I hold both OKE and KMI in my portfolio?

OKE and KMI have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OKE or KMI?

OKE has higher volatility (10.58%) compared to KMI (7.20%). In terms of maximum drawdown, OKE dropped -80.17% vs KMI's -72.70%.

Which has better risk-adjusted returns?

KMI currently has the higher Sharpe Ratio (0.71 vs 0.42), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.