CVMC vs. VO

Last updated Jun 4, 2026

CVMC (Calvert US Mid-Cap Core Responsible Index ETF) and VO (Vanguard Mid-Cap ETF) are both Mid Cap Blend Equities funds - CVMC tracks the Russell Midcap Index while VO tracks the CRSP US Mid Cap Index. Both are passively managed. Over the past 3 years, CVMC returned 16.44%/yr vs 16.69%/yr for VO. With a 0.97 correlation, they move nearly in lockstep. CVMC charges 0.15%/yr vs 0.03%/yr for VO.

Performance

CVMC vs. VO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calvert US Mid-Cap Core Responsible Index ETF (CVMC) and Vanguard Mid-Cap ETF (VO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CVMC achieves a 15.51% return, which is significantly higher than VO's 10.05% return.

CVMC

• 1D: -0.01%
• 1M: 6.27%
• YTD: 15.51%
• 6M: 15.72%
• 1Y: 25.78%
• 3Y*: 16.44%
• 5Y*: —
• 10Y*: —

VO

• 1D: -0.45%
• 1M: 3.20%
• YTD: 10.05%
• 6M: 9.73%
• 1Y: 18.13%
• 3Y*: 16.69%
• 5Y*: 7.87%
• 10Y*: 11.55%

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

CVMC vs. VO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
CVMC Calvert US Mid-Cap Core Responsible Index ETF	15.51%	9.52%	12.57%	4.40%
VO Vanguard Mid-Cap ETF	10.05%	11.62%	15.31%	6.21%

Correlation

The correlation between CVMC and VO is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (All Time) Calculated using the full available price history since Feb 2, 2023	0.97

The correlation between CVMC and VO has been stable across timeframes, ranging from 0.96 to 0.97 - a consistent structural relationship.

CVMC vs. VO - Sectors Allocation Comparison

Sectors	CVMC	VO
Technology	20.9%	18.6%
Industrials	20.6%	17.9%
Financial Services	13.1%	12.8%
Healthcare	10.1%	7.6%
Consumer Cyclical	10.0%	8.6%
Real Estate	7.1%	5.4%
Utilities	6.0%	8.3%
Consumer Defensive	5.5%	4.8%
Communication Services	2.9%	3.1%
Basic Materials	2.6%	4.2%
Energy	1.1%	8.5%

Return for Risk

CVMC vs. VO — Risk / Return Rank

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

CVMC

CVMC Risk / Return Rank: 57
CVMC Sharpe Ratio Rank: 55
CVMC Sortino Ratio Rank: 58
CVMC Omega Ratio Rank: 53
CVMC Calmar Ratio Rank: 57
CVMC Martin Ratio Rank: 62

VO

VO Risk / Return Rank: 43
VO Sharpe Ratio Rank: 41
VO Sortino Ratio Rank: 41
VO Omega Ratio Rank: 38
VO Calmar Ratio Rank: 44
VO Martin Ratio Rank: 50

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.

CVMC vs. VO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calvert US Mid-Cap Core Responsible Index ETF (CVMC) and Vanguard Mid-Cap ETF (VO). 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.

	CVMC	VO	Difference
Sharpe ratio: Return per unit of total volatility	1.86	1.48	+0.38
Sortino ratio: Return per unit of downside risk	2.75	2.14	+0.61
Omega ratio: Gain probability vs. loss probability	1.33	1.26	+0.07
Calmar ratio: Return relative to maximum drawdown	2.77	2.23	+0.54
Martin ratio: Return relative to average drawdown	11.15	8.50	+2.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CVMC vs. VO - Sharpe Ratio Comparison

The current CVMC Sharpe Ratio is 1.86, which is comparable to the VO Sharpe Ratio of 1.48. The chart below compares the historical Sharpe Ratios of CVMC and VO, 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

	CVMC	VO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.86	1.48	+0.38
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.45	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.61	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.77	0.50	+0.27

Drawdowns

CVMC vs. VO - Drawdown Comparison

The maximum CVMC drawdown since its inception was -22.53%, smaller than the maximum VO drawdown of -58.87%. Use the drawdown chart below to compare losses from any high point for CVMC and VO.

Drawdown Indicators

	CVMC	VO	Difference
Max Drawdown Largest peak-to-trough decline	-22.53%	-58.87%	+36.34%
Max Drawdown (1Y) Largest decline over 1 year	-9.35%	-8.17%	-1.18%
Max Drawdown (3Y) Largest decline over 3 years	-22.53%	-19.02%	-3.51%
Max Drawdown (5Y) Largest decline over 5 years	—	-27.57%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-39.37%	—
Current Drawdown Current decline from peak	-0.01%	-0.45%	+0.44%
Average Drawdown Average peak-to-trough decline	-4.18%	-7.86%	+3.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.32%	2.14%	+0.18%

Volatility

CVMC vs. VO - Volatility Comparison

Calvert US Mid-Cap Core Responsible Index ETF (CVMC) has a higher volatility of 3.95% compared to Vanguard Mid-Cap ETF (VO) at 2.99%. This indicates that CVMC's price experiences larger fluctuations and is considered to be riskier than VO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CVMC	VO	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.95%	2.99%	+0.96%
Volatility (6M) Calculated over the trailing 6-month period	10.51%	9.21%	+1.30%
Volatility (1Y) Calculated over the trailing 1-year period	13.93%	12.34%	+1.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.46%	17.59%	-1.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.46%	18.95%	-2.49%

CVMC vs. VO - Expense Ratio Comparison

CVMC has a 0.15% expense ratio, which is higher than VO's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

CVMC vs. VO - Dividend Comparison

CVMC's dividend yield for the trailing twelve months is around 1.17%, less than VO's 1.36% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CVMC Calvert US Mid-Cap Core Responsible Index ETF	1.17%	1.39%	1.21%	1.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VO Vanguard Mid-Cap ETF	1.36%	1.52%	1.49%	1.52%	1.60%	1.12%	1.45%	1.48%	1.82%	1.35%	1.45%	1.47%

Frequently Asked Questions

Can I hold both CVMC and VO in my portfolio?

With a correlation of 0.96, CVMC and VO move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, CVMC or VO?

CVMC has higher volatility (3.95%) compared to VO (2.99%). In terms of maximum drawdown, CVMC dropped -22.53% vs VO's -58.87%.

Which ETF is better, CVMC or VO?

On 3-year performance, VO leads with 16.69% vs 16.44% for CVMC. On fees, VO is cheaper at 0.03% per year. On volatility, VO has been the lower-risk option at 2.99%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CVMC or VO?

Over the 3-year period, VO has performed better with a 16.69% return vs 16.44%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CVMC or VO?

VO is cheaper with a 0.03% expense ratio, compared with 0.15% for CVMC.

Which ETF pays a higher dividend yield, CVMC or VO?

VO has the higher dividend yield at 1.36%, compared with 1.17% for CVMC.

What is the main difference between CVMC and VO?

CVMC tracks Russell Midcap Index, while VO tracks CRSP US Mid Cap Index. They also come from different issuers: Calvert and Vanguard. Their fees differ too: 0.15% for CVMC and 0.03% for VO.

Which has better risk-adjusted returns?

CVMC currently has the higher Sharpe Ratio (1.86 vs 1.48), 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.