CBT vs. MPC

Last updated Jun 3, 2026

CBT (Cabot Corporation) and MPC (Marathon Petroleum Corporation) are both stocks. CBT operates in Specialty Chemicals (Basic Materials), while MPC operates in Oil & Gas Refining & Marketing (Energy). Over the past 10 years, CBT returned 9.16%/yr vs 25.97%/yr for MPC. At a 0.43 correlation, their price movements are largely independent.

Performance

CBT vs. MPC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cabot Corporation (CBT) and Marathon Petroleum Corporation (MPC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CBT achieves a 33.22% return, which is significantly lower than MPC's 63.18% return. Over the past 10 years, CBT has underperformed MPC with an annualized return of 9.16%, while MPC has yielded a comparatively higher 25.97% annualized return.

CBT

• 1D: 0.67%
• 1M: 13.50%
• YTD: 33.22%
• 6M: 38.07%
• 1Y: 20.78%
• 3Y*: 7.58%
• 5Y*: 8.61%
• 10Y*: 9.16%

MPC

• 1D: 1.70%
• 1M: 7.28%
• YTD: 63.18%
• 6M: 37.72%
• 1Y: 68.95%
• 3Y*: 36.95%
• 5Y*: 36.17%
• 10Y*: 25.97%

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

CBT vs. MPC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CBT Cabot Corporation	33.22%	-25.68%	11.25%	27.63%	21.38%	28.40%	-2.16%	14.25%	-28.70%	24.65%
MPC Marathon Petroleum Corporation	63.18%	19.17%	-4.06%	30.46%	86.62%	61.00%	-27.38%	6.05%	-8.23%	34.78%

Correlation

The correlation between CBT and MPC is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.19
Correlation (3Y) Calculated over the trailing 3-year period	0.27
Correlation (5Y) Calculated over the trailing 5-year period	0.38
Correlation (10Y) Calculated over the trailing 10-year period	0.45
Correlation (All Time) Calculated using the full available price history since Jul 5, 2011	0.43

Over the past year, the correlation between CBT and MPC has dropped to 0.19 - well below their long-term average of 0.43, suggesting their price drivers have been diverging.

Fundamentals

EPS CBT : $5.83 MPC : $15.35
PE Ratio CBT : 14.98 MPC : 17.14
PEG Ratio CBT : 0.81 MPC : 0.08
PS Ratio CBT : 1.29 MPC : 0.58
Total Revenue (TTM) CBT : $3.61B MPC : $135.75B
Gross Profit (TTM) CBT : $916.00M MPC : $11.95B
EBITDA (TTM) CBT : $773.00M MPC : $12.39B

Return for Risk

CBT vs. MPC — Risk / Return Rank

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

CBT

CBT Risk / Return Rank: 58
CBT Sharpe Ratio Rank: 61
CBT Sortino Ratio Rank: 58
CBT Omega Ratio Rank: 56
CBT Calmar Ratio Rank: 55
CBT Martin Ratio Rank: 57

MPC

MPC Risk / Return Rank: 86
MPC Sharpe Ratio Rank: 89
MPC Sortino Ratio Rank: 85
MPC Omega Ratio Rank: 85
MPC Calmar Ratio Rank: 85
MPC Martin Ratio Rank: 86

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.

CBT vs. MPC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cabot Corporation (CBT) and Marathon Petroleum Corporation (MPC). 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.

	CBT	MPC	Difference
Sharpe ratio Return per unit of total volatility	0.66	2.20	-1.55
Sortino ratio Return per unit of downside risk	1.23	2.75	-1.52
Omega ratio Gain probability vs. loss probability	1.14	1.37	-0.22
Calmar ratio Return relative to maximum drawdown	0.68	3.65	-2.96
Martin ratio Return relative to average drawdown	1.64	9.65	-8.01
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CBT vs. MPC - Sharpe Ratio Comparison

The current CBT Sharpe Ratio is 0.66, which is lower than the MPC Sharpe Ratio of 2.20. The chart below compares the historical Sharpe Ratios of CBT and MPC, 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

	CBT	MPC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.66	2.20	-1.55
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.26	1.10	-0.84
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.26	0.65	-0.39
Sharpe Ratio (All Time) Calculated using the full available price history	0.22	0.56	-0.34

Drawdowns

CBT vs. MPC - Drawdown Comparison

The maximum CBT drawdown since its inception was -82.87%, roughly equal to the maximum MPC drawdown of -79.67%. Use the drawdown chart below to compare losses from any high point for CBT and MPC.

Drawdown Indicators

	CBT	MPC	Difference
Max Drawdown Largest peak-to-trough decline	-82.87%	-79.67%	-3.20%
Max Drawdown (1Y) Largest decline over 1 year	-28.82%	-18.33%	-10.49%
Max Drawdown (3Y) Largest decline over 3 years	-48.78%	-44.75%	-4.03%
Max Drawdown (5Y) Largest decline over 5 years	-48.78%	-44.75%	-4.03%
Max Drawdown (10Y) Largest decline over 10 years	-67.20%	-79.67%	+12.47%
Current Drawdown Current decline from peak	-22.42%	0.00%	-22.42%
Average Drawdown Average peak-to-trough decline	-20.82%	-17.37%	-3.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.03%	6.93%	+5.10%

Volatility

CBT vs. MPC - Volatility Comparison

Cabot Corporation (CBT) and Marathon Petroleum Corporation (MPC) have volatilities of 11.97% and 11.47%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CBT	MPC	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.97%	11.47%	+0.50%
Volatility (6M) Calculated over the trailing 6-month period	22.21%	25.79%	-3.58%
Volatility (1Y) Calculated over the trailing 1-year period	31.89%	31.50%	+0.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	33.54%	33.03%	+0.51%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	35.33%	40.27%	-4.94%

Dividends

CBT vs. MPC - Dividend Comparison

CBT's dividend yield for the trailing twelve months is around 2.09%, more than MPC's 1.49% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CBT Cabot Corporation	2.09%	2.69%	1.85%	1.88%	2.21%	2.53%	3.12%	2.90%	3.04%	2.02%	2.22%	2.15%
MPC Marathon Petroleum Corporation	1.49%	2.29%	2.43%	2.07%	2.14%	3.63%	5.61%	3.52%	3.12%	2.30%	2.70%	2.20%

Financials

CBT vs. MPC - Profitability Comparison

The chart below illustrates the profitability comparison between Cabot Corporation and Marathon Petroleum Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

CBT - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Cabot Corporation reported a gross profit of 211.00M and revenue of 849.00M. Therefore, the gross margin over that period was 24.9%.

MPC - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Marathon Petroleum Corporation reported a gross profit of 3.31B and revenue of 34.57B. Therefore, the gross margin over that period was 9.6%.

CBT - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Cabot Corporation reported an operating income of 129.00M and revenue of 849.00M, resulting in an operating margin of 15.2%.

MPC - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Marathon Petroleum Corporation reported an operating income of 1.40B and revenue of 34.57B, resulting in an operating margin of 4.1%.

CBT - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Cabot Corporation reported a net income of 73.00M and revenue of 849.00M, resulting in a net margin of 8.6%.

MPC - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Marathon Petroleum Corporation reported a net income of 511.00M and revenue of 34.57B, resulting in a net margin of 1.5%.

Frequently Asked Questions

Can I hold both CBT and MPC in my portfolio?

CBT and MPC have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CBT or MPC?

CBT has higher volatility (11.97%) compared to MPC (11.47%). In terms of maximum drawdown, CBT dropped -82.87% vs MPC's -79.67%.

Which has better risk-adjusted returns?

MPC currently has the higher Sharpe Ratio (2.20 vs 0.66), 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.