VEMRX vs. CNWIX

Last updated Jun 26, 2026

VEMRX (Vanguard Emerging Markets Index Fund Institutional Plus Shares) and CNWIX (Calamos Evolving World Growth Fund Class I) are both Emerging Markets Equities funds. Over the past 10 years, VEMRX returned 8.83%/yr vs 11.97%/yr for CNWIX. Their correlation of 0.92 suggests significant overlap in exposure. VEMRX charges 0.08%/yr vs 1.05%/yr for CNWIX.

Performance

VEMRX vs. CNWIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Emerging Markets Index Fund Institutional Plus Shares (VEMRX) and Calamos Evolving World Growth Fund Class I (CNWIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VEMRX achieves a 9.94% return, which is significantly lower than CNWIX's 42.33% return. Over the past 10 years, VEMRX has underperformed CNWIX with an annualized return of 8.83%, while CNWIX has yielded a comparatively higher 11.97% annualized return.

VEMRX

• 1D: -0.55%
• 1M: -1.66%
• YTD: 9.94%
• 6M: 10.20%
• 1Y: 23.64%
• 3Y*: 17.07%
• 5Y*: 4.81%
• 10Y*: 8.83%

CNWIX

• 1D: 0.25%
• 1M: -1.77%
• YTD: 42.33%
• 6M: 43.65%
• 1Y: 54.54%
• 3Y*: 26.98%
• 5Y*: 7.51%
• 10Y*: 11.97%

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

VEMRX vs. CNWIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VEMRX Vanguard Emerging Markets Index Fund Institutional Plus Shares	9.94%	24.84%	11.40%	8.88%	-17.74%	0.92%	15.29%	20.39%	-14.55%	31.44%
CNWIX Calamos Evolving World Growth Fund Class I	42.33%	19.29%	14.99%	6.60%	-24.35%	-4.70%	54.23%	20.76%	-17.74%	36.97%

Correlation

The correlation between VEMRX and CNWIX is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (10Y) Calculated over the trailing 10-year period	0.93
Correlation (All Time) Calculated using the full available price history since Dec 13, 2010	0.92

The correlation between VEMRX and CNWIX has been stable across timeframes, ranging from 0.89 to 0.93 - a consistent structural relationship.

Return for Risk

VEMRX vs. CNWIX — Risk / Return Rank

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

VEMRX

VEMRX Risk / Return Rank: 42
VEMRX Sharpe Ratio Rank: 42
VEMRX Sortino Ratio Rank: 39
VEMRX Omega Ratio Rank: 42
VEMRX Calmar Ratio Rank: 43
VEMRX Martin Ratio Rank: 43

CNWIX

CNWIX Risk / Return Rank: 71
CNWIX Sharpe Ratio Rank: 72
CNWIX Sortino Ratio Rank: 53
CNWIX Omega Ratio Rank: 73
CNWIX Calmar Ratio Rank: 83
CNWIX Martin Ratio Rank: 74

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.

VEMRX vs. CNWIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Emerging Markets Index Fund Institutional Plus Shares (VEMRX) and Calamos Evolving World Growth Fund Class I (CNWIX). 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.

	VEMRX	CNWIX	Difference
Sharpe ratio: Return per unit of total volatility	1.58	2.04	-0.46
Sortino ratio: Return per unit of downside risk	2.18	2.51	-0.33
Omega ratio: Gain probability vs. loss probability	1.29	1.39	-0.10
Calmar ratio: Return relative to maximum drawdown	2.18	3.36	-1.19
Martin ratio: Return relative to average drawdown	7.88	11.63	-3.75

VEMRX vs. CNWIX - Sharpe Ratio Comparison

The current VEMRX Sharpe Ratio is 1.58, which is comparable to the CNWIX Sharpe Ratio of 2.04. The chart below compares the historical Sharpe Ratios of VEMRX and CNWIX, 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

VEMRX vs. CNWIX - Drawdown Comparison

The maximum VEMRX drawdown since its inception was -36.01%, smaller than the maximum CNWIX drawdown of -43.57%. Use the drawdown chart below to compare losses from any high point for VEMRX and CNWIX.

Drawdown Indicators

	VEMRX	CNWIX	Difference
Max Drawdown Largest peak-to-trough decline	-36.01%	-43.57%	+7.56%
Max Drawdown (1Y) Largest decline over 1 year	-11.04%	-16.28%	+5.24%
Max Drawdown (3Y) Largest decline over 3 years	-15.74%	-19.34%	+3.60%
Max Drawdown (5Y) Largest decline over 5 years	-32.41%	-37.36%	+4.95%
Max Drawdown (10Y) Largest decline over 10 years	-36.01%	-43.57%	+7.56%
Current Drawdown Current decline from peak	-3.57%	-6.25%	+2.68%
Average Drawdown Average peak-to-trough decline	-12.78%	-16.39%	+3.61%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.04%	4.70%	-1.66%

Volatility

VEMRX vs. CNWIX - Volatility Comparison

The current volatility for Vanguard Emerging Markets Index Fund Institutional Plus Shares (VEMRX) is 6.83%, while Calamos Evolving World Growth Fund Class I (CNWIX) has a volatility of 15.49%. This indicates that VEMRX experiences smaller price fluctuations and is considered to be less risky than CNWIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VEMRX	CNWIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.83%	15.49%	-8.66%
Volatility (6M) Calculated over the trailing 6-month period	13.19%	24.69%	-11.50%
Volatility (1Y) Calculated over the trailing 1-year period	15.37%	26.92%	-11.55%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.58%	19.49%	-3.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.47%	24.82%	-8.35%

VEMRX vs. CNWIX - Expense Ratio Comparison

VEMRX has a 0.08% expense ratio, which is lower than CNWIX's 1.05% expense ratio.

Dividends

VEMRX vs. CNWIX - Dividend Comparison

VEMRX's dividend yield for the trailing twelve months is around 2.35%, more than CNWIX's 0.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CNWIX Calamos Evolving World Growth Fund Class I	0.04%	0.06%	0.00%	0.54%	0.97%	2.79%	2.01%	1.04%	0.00%	0.42%	0.00%	0.38%
VEMRX Vanguard Emerging Markets Index Fund Institutional Plus Shares	2.35%	2.79%	3.19%	3.53%	4.11%	2.63%	1.92%	3.26%	2.92%	2.35%	2.56%	3.31%

Frequently Asked Questions

Can I hold both VEMRX and CNWIX in my portfolio?

VEMRX and CNWIX have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VEMRX or CNWIX?

CNWIX has higher volatility (15.49%) compared to VEMRX (6.83%). In terms of maximum drawdown, VEMRX dropped -36.01% vs CNWIX's -43.57%.

Which has better risk-adjusted returns?

CNWIX currently has the higher Sharpe Ratio (2.04 vs 1.58), 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.