MNWIX vs. FDFIX

Last updated Jun 23, 2026

MNWIX (MFS Managed Wealth Fund) and FDFIX (Fidelity Flex 500 Index Fund) are both mutual funds - MNWIX is a Long-Short fund managed by BlackRock, while FDFIX is a Large Cap Blend Equities fund tracking the Fidelity U.S. Large Cap Index. Over the past 5 years, MNWIX returned 4.03%/yr vs 14.02%/yr for FDFIX. A 0.53 correlation means they provide meaningful diversification when combined. MNWIX charges 0.67%/yr vs 0.00%/yr for FDFIX.

Performance

MNWIX vs. FDFIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Managed Wealth Fund (MNWIX) and Fidelity Flex 500 Index Fund (FDFIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MNWIX achieves a 1.58% return, which is significantly lower than FDFIX's 10.05% return.

MNWIX

• 1D: 0.22%
• 1M: 0.45%
• YTD: 1.58%
• 6M: 1.43%
• 1Y: 4.62%
• 3Y*: 6.23%
• 5Y*: 4.03%
• 10Y*: 3.94%

FDFIX

• 1D: 1.14%
• 1M: 0.69%
• YTD: 10.05%
• 6M: 9.52%
• 1Y: 26.74%
• 3Y*: 20.85%
• 5Y*: 14.02%
• 10Y*: —

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

MNWIX vs. FDFIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MNWIX MFS Managed Wealth Fund	1.58%	7.71%	6.42%	5.41%	-2.15%	1.35%	3.11%	8.70%	2.10%	4.53%
FDFIX Fidelity Flex 500 Index Fund	10.05%	17.59%	25.06%	26.27%	-18.10%	28.69%	18.46%	31.47%	-4.45%	14.41%

Correlation

The correlation between MNWIX and FDFIX is 0.84, 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	0.84
Correlation (3Y) Calculated over the trailing 3-year period	0.70
Correlation (5Y) Calculated over the trailing 5-year period	0.62
Correlation (All Time) Calculated using the full available price history since Mar 9, 2017	0.53

Over the past year, MNWIX and FDFIX have become more correlated (0.84) than their long-term average of 0.53, meaning their price movements have been converging.

Return for Risk

MNWIX vs. FDFIX — Risk / Return Rank

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

MNWIX

MNWIX Risk / Return Rank: 10
MNWIX Sharpe Ratio Rank: 10
MNWIX Sortino Ratio Rank: 9
MNWIX Omega Ratio Rank: 9
MNWIX Calmar Ratio Rank: 9
MNWIX Martin Ratio Rank: 12

FDFIX

FDFIX Risk / Return Rank: 63
FDFIX Sharpe Ratio Rank: 61
FDFIX Sortino Ratio Rank: 55
FDFIX Omega Ratio Rank: 57
FDFIX Calmar Ratio Rank: 65
FDFIX 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.

MNWIX vs. FDFIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Managed Wealth Fund (MNWIX) and Fidelity Flex 500 Index Fund (FDFIX). 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.

	MNWIX	FDFIX	Difference
Sharpe ratio: Return per unit of total volatility	0.75	2.12	-1.37
Sortino ratio: Return per unit of downside risk	1.12	2.86	-1.74
Omega ratio: Gain probability vs. loss probability	1.14	1.38	-0.24
Calmar ratio: Return relative to maximum drawdown	0.79	2.97	-2.18
Martin ratio: Return relative to average drawdown	3.15	13.11	-9.96

MNWIX vs. FDFIX - Sharpe Ratio Comparison

The current MNWIX Sharpe Ratio is 0.75, which is lower than the FDFIX Sharpe Ratio of 2.12. The chart below compares the historical Sharpe Ratios of MNWIX and FDFIX, 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

MNWIX vs. FDFIX - Drawdown Comparison

The maximum MNWIX drawdown since its inception was -5.57%, smaller than the maximum FDFIX drawdown of -33.77%. Use the drawdown chart below to compare losses from any high point for MNWIX and FDFIX.

Drawdown Indicators

	MNWIX	FDFIX	Difference
Max Drawdown Largest peak-to-trough decline	-5.57%	-33.77%	+28.20%
Max Drawdown (1Y) Largest decline over 1 year	-5.57%	-8.99%	+3.42%
Max Drawdown (3Y) Largest decline over 3 years	-5.57%	-18.76%	+13.19%
Max Drawdown (5Y) Largest decline over 5 years	-5.57%	-24.51%	+18.94%
Max Drawdown (10Y) Largest decline over 10 years	-5.57%	—	—
Current Drawdown Current decline from peak	-0.44%	-1.33%	+0.89%
Average Drawdown Average peak-to-trough decline	-1.12%	-4.56%	+3.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.39%	2.03%	-0.64%

Volatility

MNWIX vs. FDFIX - Volatility Comparison

The current volatility for MFS Managed Wealth Fund (MNWIX) is 2.12%, while Fidelity Flex 500 Index Fund (FDFIX) has a volatility of 4.90%. This indicates that MNWIX experiences smaller price fluctuations and is considered to be less risky than FDFIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MNWIX	FDFIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.12%	4.90%	-2.78%
Volatility (6M) Calculated over the trailing 6-month period	4.77%	10.00%	-5.23%
Volatility (1Y) Calculated over the trailing 1-year period	5.84%	12.61%	-6.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.07%	17.05%	-12.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.89%	18.60%	-14.71%

MNWIX vs. FDFIX - Expense Ratio Comparison

MNWIX has a 0.67% expense ratio, which is higher than FDFIX's 0.00% expense ratio.

Dividends

MNWIX vs. FDFIX - Dividend Comparison

MNWIX's dividend yield for the trailing twelve months is around 0.75%, less than FDFIX's 1.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FDFIX Fidelity Flex 500 Index Fund	1.04%	1.11%	1.26%	1.48%	1.70%	1.27%	1.52%	1.78%	2.16%	0.50%	0.00%	0.00%
MNWIX MFS Managed Wealth Fund	0.75%	0.76%	1.13%	0.78%	0.70%	0.13%	0.24%	0.54%	0.42%	0.94%	2.65%	1.19%

Frequently Asked Questions

Can I hold both MNWIX and FDFIX in my portfolio?

MNWIX and FDFIX have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MNWIX or FDFIX?

FDFIX has higher volatility (4.90%) compared to MNWIX (2.12%). In terms of maximum drawdown, MNWIX dropped -5.57% vs FDFIX's -33.77%.

Which has better risk-adjusted returns?

FDFIX currently has the higher Sharpe Ratio (2.12 vs 0.75), 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.