MIDLX vs. SAISX
MIDLX (MFS International New Discovery Fund Class R6) and SAISX (SA International Small Company Fund) are both Foreign Small & Mid Cap Equities funds. Over the past 10 years, MIDLX returned 7.01%/yr vs 8.53%/yr for SAISX. Their correlation of 0.90 suggests significant overlap in exposure. MIDLX charges 0.91%/yr vs 0.74%/yr for SAISX.
Performance
MIDLX vs. SAISX - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with MIDLX having a 7.81% return and SAISX slightly higher at 7.86%. Over the past 10 years, MIDLX has underperformed SAISX with an annualized return of 7.01%, while SAISX has yielded a comparatively higher 8.53% annualized return.
MIDLX
- 1D
- 0.44%
- 1M
- 1.48%
- YTD
- 7.81%
- 6M
- 7.91%
- 1Y
- 12.72%
- 3Y*
- 10.66%
- 5Y*
- 3.92%
- 10Y*
- 7.01%
SAISX
- 1D
- 0.00%
- 1M
- -0.15%
- YTD
- 7.86%
- 6M
- 8.12%
- 1Y
- 23.55%
- 3Y*
- 16.65%
- 5Y*
- 7.76%
- 10Y*
- 8.53%
MIDLX vs. SAISX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MIDLX MFS International New Discovery Fund Class R6 | 7.81% | 17.03% | 3.33% | 13.21% | -18.52% | 5.17% | 10.15% | 24.97% | -10.29% | 30.65% |
SAISX SA International Small Company Fund | 7.86% | 35.69% | 3.19% | 13.87% | -17.68% | 13.52% | 8.54% | 23.25% | -20.10% | 29.04% |
Correlation
The correlation between MIDLX and SAISX is 0.85, 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 | 0.85 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.85 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.90 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.90 |
Correlation (All Time) Calculated using the full available price history since Jun 1, 2012 | 0.90 |
The correlation between MIDLX and SAISX has been stable across timeframes, ranging from 0.85 to 0.90 - a consistent structural relationship.
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Return for Risk
MIDLX vs. SAISX — Risk / Return Rank
MIDLX
SAISX
MIDLX vs. SAISX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS International New Discovery Fund Class R6 (MIDLX) and SA International Small Company Fund (SAISX). 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.
| MIDLX | SAISX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.80 | ||
| Sortino ratioReturn per unit of downside risk | -1.05 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 1.32 | -0.13 |
| Calmar ratioReturn relative to maximum drawdown | 1.01 | 2.17 | -1.16 |
| Martin ratioReturn relative to average drawdown | 3.42 | 7.55 | -4.12 |
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Drawdowns
MIDLX vs. SAISX - Drawdown Comparison
The maximum MIDLX drawdown since its inception was -34.70%, smaller than the maximum SAISX drawdown of -61.36%. Use the drawdown chart below to compare losses from any high point for MIDLX and SAISX.
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Drawdown Indicators
| MIDLX | SAISX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.70% | -61.36% | +26.66% |
Max Drawdown (1Y)Largest decline over 1 year | -11.75% | -12.00% | +0.25% |
Max Drawdown (3Y)Largest decline over 3 years | -13.15% | -13.15% | 0.00% |
Max Drawdown (5Y)Largest decline over 5 years | -33.58% | -33.49% | -0.09% |
Max Drawdown (10Y)Largest decline over 10 years | -34.70% | -43.94% | +9.24% |
Current DrawdownCurrent decline from peak | -0.85% | -2.87% | +2.02% |
Average DrawdownAverage peak-to-trough decline | -6.90% | -12.62% | +5.72% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.46% | 3.31% | +0.15% |
Volatility
MIDLX vs. SAISX - Volatility Comparison
The current volatility for MFS International New Discovery Fund Class R6 (MIDLX) is 4.13%, while SA International Small Company Fund (SAISX) has a volatility of 4.56%. This indicates that MIDLX experiences smaller price fluctuations and is considered to be less risky than SAISX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MIDLX | SAISX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.13% | 4.56% | -0.43% |
Volatility (6M)Calculated over the trailing 6-month period | 10.04% | 11.62% | -1.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 11.90% | 14.55% | -2.65% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 13.29% | 16.32% | -3.03% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 14.01% | 16.31% | -2.30% |
MIDLX vs. SAISX - Expense Ratio Comparison
MIDLX has a 0.91% expense ratio, which is higher than SAISX's 0.74% expense ratio.
Dividends
MIDLX vs. SAISX - Dividend Comparison
MIDLX's dividend yield for the trailing twelve months is around 3.13%, less than SAISX's 5.50% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIDLX MFS International New Discovery Fund Class R6 | 3.13% | 3.37% | 10.08% | 4.21% | 5.85% | 5.19% | 4.03% | 4.36% | 6.82% | 1.63% | 1.09% | 1.25% |
SAISX SA International Small Company Fund | 5.50% | 5.93% | 3.96% | 3.31% | 6.05% | 5.68% | 1.95% | 5.67% | 6.70% | 4.28% | 4.07% | 3.84% |
Frequently Asked Questions
MIDLX and SAISX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SAISX has higher volatility (4.56%) compared to MIDLX (4.13%). In terms of maximum drawdown, MIDLX dropped -34.70% vs SAISX's -61.36%.
SAISX currently has the higher Sharpe Ratio (1.79 vs 1.00), 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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