MRSH vs. VOO

Last updated Jul 17, 2026

MRSH (Marsh & McLennan Companies, Inc) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, MRSH returned 12.43%/yr vs 15.15%/yr for VOO. A 0.59 correlation means they provide meaningful diversification when combined.

Performance

MRSH vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Marsh & McLennan Companies, Inc (MRSH) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MRSH achieves a -0.81% return, which is significantly lower than VOO's 10.72% return. Over the past 10 years, MRSH has underperformed VOO with an annualized return of 12.43%, while VOO has yielded a comparatively higher 15.15% annualized return.

MRSH

• 1D: 3.37%
• 1M: 9.22%
• 6M: 0.96%
• YTD: -0.81%
• 1Y: -12.43%
• 3Y*: 0.48%
• 5Y*: 6.82%
• 10Y*: 12.43%

VOO

• 1D: -0.53%
• 1M: 0.35%
• 6M: 9.07%
• YTD: 10.72%
• 1Y: 21.71%
• 3Y*: 20.11%
• 5Y*: 13.31%
• 10Y*: 15.15%

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

MRSH vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MRSH Marsh & McLennan Companies, Inc	-0.81%	-11.26%	13.75%	16.15%	-3.45%	50.83%	6.86%	42.33%	-0.14%	22.73%
VOO Vanguard S&P 500 ETF	10.72%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between MRSH and VOO is -0.13, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.13
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.41
Correlation (10Y) Calculated over the trailing 10-year period	0.50
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.59

The correlation between MRSH and VOO shifts across timeframes, from -0.13 (1 year) to 0.59 (all time), reflecting how their relationship changes across market environments.

Return for Risk

MRSH vs. VOO — Risk / Return Rank

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

MRSH

MRSH Risk / Return Rank: 23
MRSH Sharpe Ratio Rank: 22
MRSH Sortino Ratio Rank: 21
MRSH Omega Ratio Rank: 20
MRSH Calmar Ratio Rank: 26
MRSH Martin Ratio Rank: 26

VOO

VOO Risk / Return Rank: 66
VOO Sharpe Ratio Rank: 66
VOO Sortino Ratio Rank: 64
VOO Omega Ratio Rank: 66
VOO Calmar Ratio Rank: 61
VOO Martin Ratio Rank: 73

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.

MRSH vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Marsh & McLennan Companies, Inc (MRSH) and Vanguard S&P 500 ETF (VOO). 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.

	MRSH	VOO	Difference
Sharpe ratio: Return per unit of total volatility	-0.50	1.74	-2.24
Sortino ratio: Return per unit of downside risk	-0.56	2.40	-2.96
Omega ratio: Gain probability vs. loss probability	0.93	1.32	-0.39
Calmar ratio: Return relative to maximum drawdown	-0.51	2.45	-2.96
Martin ratio: Return relative to average drawdown	-0.89	10.68	-11.57

MRSH vs. VOO - Sharpe Ratio Comparison

The current MRSH Sharpe Ratio is -0.50, which is lower than the VOO Sharpe Ratio of 1.74. The chart below compares the historical Sharpe Ratios of MRSH and VOO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

MRSH vs. VOO - Drawdown Comparison

The maximum MRSH drawdown since its inception was -67.46%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for MRSH and VOO.

Drawdown Indicators

	MRSH	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-67.46%	-33.99%	-33.47%
Max Drawdown (1Y) Largest decline over 1 year	-24.47%	-8.90%	-15.57%
Max Drawdown (3Y) Largest decline over 3 years	-34.36%	-18.69%	-15.67%
Max Drawdown (5Y) Largest decline over 5 years	-34.36%	-24.52%	-9.84%
Max Drawdown (10Y) Largest decline over 10 years	-35.80%	-33.99%	-1.81%
Current Drawdown Current decline from peak	-24.00%	-0.88%	-23.12%
Average Drawdown Average peak-to-trough decline	-17.43%	-3.67%	-13.76%
Ulcer Index Depth and duration of drawdowns from previous peaks	14.05%	2.04%	+12.01%

Volatility

MRSH vs. VOO - Volatility Comparison

Marsh & McLennan Companies, Inc (MRSH) has a higher volatility of 9.39% compared to Vanguard S&P 500 ETF (VOO) at 3.48%. This indicates that MRSH's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MRSH	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.39%	3.48%	+5.91%
Volatility (6M) Calculated over the trailing 6-month period	20.69%	9.98%	+10.71%
Volatility (1Y) Calculated over the trailing 1-year period	24.97%	12.52%	+12.45%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.57%	16.92%	+3.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.04%	17.99%	+3.05%

Dividends

MRSH vs. VOO - Dividend Comparison

MRSH's dividend yield for the trailing twelve months is around 1.98%, more than VOO's 1.06% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MRSH Marsh & McLennan Companies, Inc	1.98%	1.85%	1.44%	1.37%	1.36%	1.15%	1.57%	1.56%	1.98%	1.76%	1.92%	2.13%
VOO Vanguard S&P 500 ETF	1.06%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both MRSH and VOO in my portfolio?

MRSH and VOO have a correlation of -0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MRSH or VOO?

MRSH has higher volatility (9.39%) compared to VOO (3.48%). In terms of maximum drawdown, MRSH dropped -67.46% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.74 vs -0.50), 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.