DIFIX vs. FCSRX

Last updated Aug 1, 2026

DIFIX (MFS Diversified Income Fund) and FCSRX (Fidelity Advisor Strategic Real Return Fund Class C) are both Diversified Portfolio funds. Over the past 10 years, DIFIX returned 4.63%/yr vs 4.42%/yr for FCSRX. Their 0.65 correlation means they have sometimes moved together and sometimes differently. DIFIX charges 0.73%/yr vs 1.70%/yr for FCSRX.

Performance

DIFIX vs. FCSRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Diversified Income Fund (DIFIX) and Fidelity Advisor Strategic Real Return Fund Class C (FCSRX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DIFIX achieves a 6.09% return, which is significantly lower than FCSRX's 6.55% return. Both investments have delivered pretty close results over the past 10 years, with DIFIX having a 4.63% annualized return and FCSRX not far behind at 4.42%.

DIFIX

• 1D: 0.00%
• 1M: 0.31%
• 6M: 4.24%
• YTD: 6.09%
• 1Y: 11.09%
• 3Y*: 8.02%
• 5Y*: 3.20%
• 10Y*: 4.63%
• ALL TIME*: 5.91%

FCSRX

• 1D: 0.00%
• 1M: 0.77%
• 6M: 2.98%
• YTD: 6.55%
• 1Y: 12.24%
• 3Y*: 7.14%
• 5Y*: 4.52%
• 10Y*: 4.42%
• ALL TIME*: 2.96%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
DIFIX MFS Diversified Income Fund	$0.00	$0.00	$0.00
FCSRX Fidelity Advisor Strategic Real Return Fund Class C	$0.00	$0.00	$0.00

DIFIX vs. FCSRX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DIFIX MFS Diversified Income Fund	6.09%	9.73%	4.60%	8.84%	-13.55%	9.26%	2.17%	17.69%	-3.41%	8.94%
FCSRX Fidelity Advisor Strategic Real Return Fund Class C	6.55%	9.27%	4.75%	3.60%	-4.26%	14.68%	2.60%	9.54%	-5.03%	3.02%

Correlation

The correlation between DIFIX and FCSRX is 0.45, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.45
Correlation (3Y) Balances recent behavior with more history.	0.60
Correlation (5Y) Shows whether the relationship held over a longer period.	0.64
Correlation (10Y) Provides a long-term view across more market conditions.	0.66
Correlation (All Time) Calculated using the full available price history since May 26, 2006	0.65

The correlation between DIFIX and FCSRX shifts across timeframes, from 0.45 (1 year) to 0.66 (10 years), reflecting how their relationship changes across market environments.

Return for Risk

DIFIX vs. FCSRX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

DIFIX

DIFIX Risk / Return Rank: 86
DIFIX Sharpe Ratio Rank: 90
DIFIX Sortino Ratio Rank: 90
DIFIX Omega Ratio Rank: 88
DIFIX Calmar Ratio Rank: 77
DIFIX Martin Ratio Rank: 85

FCSRX

FCSRX Risk / Return Rank: 89
FCSRX Sharpe Ratio Rank: 93
FCSRX Sortino Ratio Rank: 89
FCSRX Omega Ratio Rank: 89
FCSRX Calmar Ratio Rank: 90
FCSRX Martin Ratio Rank: 84

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

DIFIX vs. FCSRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Diversified Income Fund (DIFIX) and Fidelity Advisor Strategic Real Return Fund Class C (FCSRX). 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.

	DIFIX	FCSRX	Difference
Sharpe ratio: Return per unit of total volatility	2.30	2.44	-0.14
Sortino ratio: Return per unit of downside risk	3.41	3.32	+0.08
Omega ratio: Gain probability vs. loss probability	1.46	1.47	-0.01
Calmar ratio: Return relative to maximum drawdown	2.54	3.36	-0.82
Martin ratio: Return relative to average drawdown	10.92	10.54	+0.38

DIFIX vs. FCSRX - Sharpe Ratio Comparison

The current DIFIX Sharpe Ratio is 2.30, which is comparable to the FCSRX Sharpe Ratio of 2.44. The chart below compares the historical Sharpe Ratios of DIFIX and FCSRX, 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

DIFIX vs. FCSRX - Drawdown Comparison

The maximum DIFIX drawdown since its inception was -35.04%, roughly equal to the maximum FCSRX drawdown of -33.91%. Use the drawdown chart below to compare losses from any high point for DIFIX and FCSRX.

Drawdown Indicators

	DIFIX	FCSRX	Difference
Max Drawdown Largest peak-to-trough decline	-35.04%	-33.91%	-1.13%
Max Drawdown (1Y) Largest decline over 1 year	-4.48%	-3.50%	-0.98%
Max Drawdown (3Y) Largest decline over 3 years	-6.25%	-5.85%	-0.40%
Max Drawdown (5Y) Largest decline over 5 years	-19.70%	-13.22%	-6.48%
Max Drawdown (10Y) Largest decline over 10 years	-23.69%	-20.02%	-3.67%
Current Drawdown Current decline from peak	-0.23%	-2.33%	+2.10%
Average Drawdown Average peak-to-trough decline	-3.83%	-5.07%	+1.24%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.04%	1.11%	-0.07%

Volatility

DIFIX vs. FCSRX - Volatility Comparison

The current volatility for MFS Diversified Income Fund (DIFIX) is 1.07%, while Fidelity Advisor Strategic Real Return Fund Class C (FCSRX) has a volatility of 1.62%. This indicates that DIFIX experiences smaller price fluctuations and is considered to be less risky than FCSRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DIFIX	FCSRX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.07%	1.62%	-0.55%
Volatility (6M) Calculated over the trailing 6-month period	4.02%	3.78%	+0.24%
Volatility (1Y) Calculated over the trailing 1-year period	4.98%	4.88%	+0.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.84%	6.90%	-0.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.49%	6.71%	+0.78%

DIFIX vs. FCSRX - Expense Ratio Comparison

DIFIX has a 0.73% expense ratio, which is lower than FCSRX's 1.70% expense ratio.

Dividends

DIFIX vs. FCSRX - Dividend Comparison

DIFIX's dividend yield for the trailing twelve months is around 5.22%, more than FCSRX's 2.54% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIFIX MFS Diversified Income Fund	5.22%	5.62%	3.86%	3.12%	3.99%	4.95%	2.83%	3.13%	4.39%	3.79%	3.76%	7.57%
FCSRX Fidelity Advisor Strategic Real Return Fund Class C	2.54%	3.74%	3.86%	4.35%	6.51%	4.53%	1.32%	2.20%	8.51%	1.58%	1.34%	0.66%

Frequently Asked Questions

Can I hold both DIFIX and FCSRX in my portfolio?

DIFIX and FCSRX have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DIFIX or FCSRX?

FCSRX has higher volatility (1.62%) compared to DIFIX (1.07%). In terms of maximum drawdown, DIFIX dropped -35.04% vs FCSRX's -33.91%.

Which has better risk-adjusted returns?

FCSRX currently has the higher Sharpe Ratio (2.44 vs 2.30), 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.