MNDIX vs. MEIIX

Last updated Jun 24, 2026

MNDIX (MFS New Discovery Fund) and MEIIX (MFS Value Fund Class I) are both mutual funds - MNDIX is a Small Cap Growth Equities fund managed by MFS, while MEIIX is a Large Cap Value Equities fund managed by MFS. Over the past 10 years, MNDIX returned 12.25%/yr vs 10.46%/yr for MEIIX. A 0.74 correlation means they provide meaningful diversification when combined. MNDIX charges 0.99%/yr vs 0.55%/yr for MEIIX.

Performance

MNDIX vs. MEIIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS New Discovery Fund (MNDIX) and MFS Value Fund Class I (MEIIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MNDIX achieves a 13.77% return, which is significantly higher than MEIIX's 6.89% return. Over the past 10 years, MNDIX has outperformed MEIIX with an annualized return of 12.25%, while MEIIX has yielded a comparatively lower 10.46% annualized return.

MNDIX

• 1D: 0.33%
• 1M: 4.64%
• YTD: 13.77%
• 6M: 10.86%
• 1Y: 26.18%
• 3Y*: 13.57%
• 5Y*: 0.55%
• 10Y*: 12.25%

MEIIX

• 1D: 0.38%
• 1M: 1.71%
• YTD: 6.89%
• 6M: 6.07%
• 1Y: 15.51%
• 3Y*: 13.74%
• 5Y*: 8.79%
• 10Y*: 10.46%

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

MNDIX vs. MEIIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MNDIX MFS New Discovery Fund	13.77%	12.62%	6.32%	14.30%	-29.64%	2.03%	45.14%	41.12%	-1.41%	26.27%
MEIIX MFS Value Fund Class I	6.89%	13.26%	11.86%	8.21%	-6.02%	25.43%	3.99%	30.04%	-9.90%	17.20%

Correlation

The correlation between MNDIX and MEIIX is 0.64, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.64
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.72
Correlation (10Y) Calculated over the trailing 10-year period	0.71
Correlation (All Time) Calculated using the full available price history since Dec 31, 1996	0.74

The correlation between MNDIX and MEIIX shifts across timeframes, from 0.64 (1 year) to 0.74 (all time), reflecting how their relationship changes across market environments.

Return for Risk

MNDIX vs. MEIIX — Risk / Return Rank

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

MNDIX

MNDIX Risk / Return Rank: 29
MNDIX Sharpe Ratio Rank: 26
MNDIX Sortino Ratio Rank: 25
MNDIX Omega Ratio Rank: 24
MNDIX Calmar Ratio Rank: 33
MNDIX Martin Ratio Rank: 37

MEIIX

MEIIX Risk / Return Rank: 37
MEIIX Sharpe Ratio Rank: 34
MEIIX Sortino Ratio Rank: 34
MEIIX Omega Ratio Rank: 30
MEIIX Calmar Ratio Rank: 45
MEIIX Martin Ratio Rank: 42

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.

MNDIX vs. MEIIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS New Discovery Fund (MNDIX) and MFS Value Fund Class I (MEIIX). 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.

	MNDIX	MEIIX	Difference
Sharpe ratio: Return per unit of total volatility	1.36	1.55	-0.19
Sortino ratio: Return per unit of downside risk	1.96	2.25	-0.29
Omega ratio: Gain probability vs. loss probability	1.24	1.27	-0.03
Calmar ratio: Return relative to maximum drawdown	2.04	2.44	-0.40
Martin ratio: Return relative to average drawdown	7.67	8.41	-0.74

MNDIX vs. MEIIX - Sharpe Ratio Comparison

The current MNDIX Sharpe Ratio is 1.36, which is comparable to the MEIIX Sharpe Ratio of 1.55. The chart below compares the historical Sharpe Ratios of MNDIX and MEIIX, 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

MNDIX vs. MEIIX - Drawdown Comparison

The maximum MNDIX drawdown since its inception was -62.02%, which is greater than MEIIX's maximum drawdown of -52.64%. Use the drawdown chart below to compare losses from any high point for MNDIX and MEIIX.

Drawdown Indicators

	MNDIX	MEIIX	Difference
Max Drawdown Largest peak-to-trough decline	-62.02%	-52.64%	-9.38%
Max Drawdown (1Y) Largest decline over 1 year	-13.42%	-6.76%	-6.66%
Max Drawdown (3Y) Largest decline over 3 years	-25.32%	-13.19%	-12.13%
Max Drawdown (5Y) Largest decline over 5 years	-42.04%	-17.58%	-24.46%
Max Drawdown (10Y) Largest decline over 10 years	-42.04%	-36.70%	-5.34%
Current Drawdown Current decline from peak	-2.97%	-1.05%	-1.92%
Average Drawdown Average peak-to-trough decline	-16.80%	-6.54%	-10.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.56%	1.96%	+1.60%

Volatility

MNDIX vs. MEIIX - Volatility Comparison

MFS New Discovery Fund (MNDIX) has a higher volatility of 6.84% compared to MFS Value Fund Class I (MEIIX) at 3.22%. This indicates that MNDIX's price experiences larger fluctuations and is considered to be riskier than MEIIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MNDIX	MEIIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.84%	3.22%	+3.62%
Volatility (6M) Calculated over the trailing 6-month period	15.81%	7.89%	+7.92%
Volatility (1Y) Calculated over the trailing 1-year period	20.17%	10.66%	+9.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.97%	13.93%	+9.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.13%	16.57%	+5.56%

MNDIX vs. MEIIX - Expense Ratio Comparison

MNDIX has a 0.99% expense ratio, which is higher than MEIIX's 0.55% expense ratio.

Dividends

MNDIX vs. MEIIX - Dividend Comparison

MNDIX has not paid dividends to shareholders, while MEIIX's dividend yield for the trailing twelve months is around 9.09%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MEIIX MFS Value Fund Class I	9.09%	9.52%	9.30%	8.41%	7.58%	3.32%	2.63%	3.17%	3.62%	4.04%	2.91%	5.97%
MNDIX MFS New Discovery Fund	0.00%	0.00%	0.00%	0.00%	0.09%	20.76%	9.22%	7.01%	23.11%	9.34%	2.24%	0.00%

Frequently Asked Questions

Can I hold both MNDIX and MEIIX in my portfolio?

MNDIX and MEIIX have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MNDIX or MEIIX?

MNDIX has higher volatility (6.84%) compared to MEIIX (3.22%). In terms of maximum drawdown, MNDIX dropped -62.02% vs MEIIX's -52.64%.

Which has better risk-adjusted returns?

MEIIX currently has the higher Sharpe Ratio (1.55 vs 1.36), 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.