VIISX vs. MWNIX
VIISX (Virtus KAR International Small-Mid Cap Fund) and MWNIX (MFS International New Discovery Fund) are both Foreign Small & Mid Cap Equities funds. Over the past 10 years, VIISX returned 8.23%/yr vs 6.67%/yr for MWNIX. A 0.79 correlation means they provide meaningful diversification when combined. VIISX charges 1.19%/yr vs 1.03%/yr for MWNIX.
Performance
VIISX vs. MWNIX - Performance Comparison
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Returns By Period
In the year-to-date period, VIISX achieves a -0.83% return, which is significantly lower than MWNIX's 4.54% return. Over the past 10 years, VIISX has outperformed MWNIX with an annualized return of 8.23%, while MWNIX has yielded a comparatively lower 6.67% annualized return.
VIISX
- 1D
- -1.40%
- 1M
- -1.45%
- YTD
- -0.83%
- 6M
- -0.68%
- 1Y
- -5.48%
- 3Y*
- 9.35%
- 5Y*
- -1.34%
- 10Y*
- 8.23%
MWNIX
- 1D
- -2.41%
- 1M
- -1.51%
- YTD
- 4.54%
- 6M
- 4.20%
- 1Y
- 7.55%
- 3Y*
- 9.71%
- 5Y*
- 2.39%
- 10Y*
- 6.67%
VIISX vs. MWNIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VIISX Virtus KAR International Small-Mid Cap Fund | -0.83% | 14.30% | 4.06% | 22.36% | -34.42% | 5.84% | 24.38% | 27.62% | -6.81% | 28.48% |
MWNIX MFS International New Discovery Fund | 4.54% | 16.88% | 0.90% | 13.03% | -18.63% | 5.06% | 9.98% | 22.85% | -10.41% | 30.67% |
Correlation
The correlation between VIISX and MWNIX is 0.80, 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 | 0.80 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.80 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.84 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.82 |
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013 | 0.79 |
The correlation between VIISX and MWNIX has been stable across timeframes, ranging from 0.79 to 0.84 - a consistent structural relationship.
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Return for Risk
VIISX vs. MWNIX — Risk / Return Rank
VIISX
MWNIX
VIISX vs. MWNIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Virtus KAR International Small-Mid Cap Fund (VIISX) and MFS International New Discovery Fund (MWNIX). 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.
| VIISX | MWNIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.06 | ||
| Sortino ratioReturn per unit of downside risk | -1.49 | ||
| Omega ratioGain probability vs. loss probability | 0.96 | 1.14 | -0.19 |
| Calmar ratioReturn relative to maximum drawdown | -0.28 | 0.76 | -1.04 |
| Martin ratioReturn relative to average drawdown | -0.62 | 2.56 | -3.18 |
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Drawdowns
VIISX vs. MWNIX - Drawdown Comparison
The maximum VIISX drawdown since its inception was -50.31%, smaller than the maximum MWNIX drawdown of -58.38%. Use the drawdown chart below to compare losses from any high point for VIISX and MWNIX.
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Drawdown Indicators
| VIISX | MWNIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -50.31% | -58.38% | +8.07% |
Max Drawdown (1Y)Largest decline over 1 year | -14.94% | -11.78% | -3.16% |
Max Drawdown (3Y)Largest decline over 3 years | -15.58% | -15.12% | -0.46% |
Max Drawdown (5Y)Largest decline over 5 years | -50.31% | -33.67% | -16.64% |
Max Drawdown (10Y)Largest decline over 10 years | -50.31% | -34.72% | -15.59% |
Current DrawdownCurrent decline from peak | -12.69% | -3.83% | -8.86% |
Average DrawdownAverage peak-to-trough decline | -11.26% | -9.56% | -1.70% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.82% | 3.48% | +3.34% |
Volatility
VIISX vs. MWNIX - Volatility Comparison
The current volatility for Virtus KAR International Small-Mid Cap Fund (VIISX) is 4.13%, while MFS International New Discovery Fund (MWNIX) has a volatility of 4.81%. This indicates that VIISX experiences smaller price fluctuations and is considered to be less risky than MWNIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VIISX | MWNIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.13% | 4.81% | -0.68% |
Volatility (6M)Calculated over the trailing 6-month period | 10.59% | 10.36% | +0.23% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.81% | 12.16% | +0.65% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.26% | 13.30% | +2.96% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 15.41% | 13.82% | +1.59% |
VIISX vs. MWNIX - Expense Ratio Comparison
VIISX has a 1.19% expense ratio, which is higher than MWNIX's 1.03% expense ratio.
Dividends
VIISX vs. MWNIX - Dividend Comparison
VIISX's dividend yield for the trailing twelve months is around 3.75%, more than MWNIX's 3.10% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MWNIX MFS International New Discovery Fund | 3.10% | 3.24% | 7.61% | 4.05% | 5.68% | 5.06% | 3.90% | 2.67% | 6.68% | 1.63% | 1.09% | 1.12% |
VIISX Virtus KAR International Small-Mid Cap Fund | 3.75% | 3.72% | 1.94% | 0.00% | 0.00% | 8.43% | 1.16% | 1.98% | 1.42% | 1.82% | 2.75% | 3.43% |
Frequently Asked Questions
VIISX and MWNIX have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MWNIX has higher volatility (4.81%) compared to VIISX (4.13%). In terms of maximum drawdown, VIISX dropped -50.31% vs MWNIX's -58.38%.
MWNIX currently has the higher Sharpe Ratio (0.74 vs -0.33), 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.
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