DIFIX vs. SIFAX

Last updated Jun 4, 2026

DIFIX (MFS Diversified Income Fund) and SIFAX (SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund) are both Diversified Portfolio funds. Over the past 10 years, DIFIX returned 4.90%/yr vs 3.55%/yr for SIFAX. At a 0.36 correlation, their price movements are largely independent. DIFIX charges 0.73%/yr vs 0.90%/yr for SIFAX.

Performance

DIFIX vs. SIFAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Diversified Income Fund (DIFIX) and SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund (SIFAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DIFIX achieves a 4.93% return, which is significantly lower than SIFAX's 8.08% return. Over the past 10 years, DIFIX has outperformed SIFAX with an annualized return of 4.90%, while SIFAX has yielded a comparatively lower 3.55% annualized return.

DIFIX

• 1D: 0.23%
• 1M: 1.06%
• YTD: 4.93%
• 6M: 5.25%
• 1Y: 11.71%
• 3Y*: 8.57%
• 5Y*: 3.27%
• 10Y*: 4.90%

SIFAX

• 1D: 0.12%
• 1M: -1.50%
• YTD: 8.08%
• 6M: 7.70%
• 1Y: 12.43%
• 3Y*: 7.51%
• 5Y*: 5.83%
• 10Y*: 3.55%

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

DIFIX vs. SIFAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DIFIX MFS Diversified Income Fund	4.93%	9.73%	4.60%	8.84%	-13.55%	9.26%	2.17%	17.69%	-3.41%	8.94%
SIFAX SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund	8.08%	7.82%	4.08%	-1.74%	8.48%	10.83%	-1.59%	5.68%	-3.64%	-1.96%

Correlation

The correlation between DIFIX and SIFAX is 0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.01
Correlation (3Y) Calculated over the trailing 3-year period	0.19
Correlation (5Y) Calculated over the trailing 5-year period	0.25
Correlation (10Y) Calculated over the trailing 10-year period	0.34
Correlation (All Time) Calculated using the full available price history since Jan 3, 2013	0.36

Over the past year, the correlation between DIFIX and SIFAX has dropped to 0.01 - well below their long-term average of 0.36, suggesting their price drivers have been diverging.

Return for Risk

DIFIX vs. SIFAX — Risk / Return Rank

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

DIFIX

DIFIX Risk / Return Rank: 61
DIFIX Sharpe Ratio Rank: 64
DIFIX Sortino Ratio Rank: 69
DIFIX Omega Ratio Rank: 67
DIFIX Calmar Ratio Rank: 47
DIFIX Martin Ratio Rank: 55

SIFAX

SIFAX Risk / Return Rank: 73
SIFAX Sharpe Ratio Rank: 62
SIFAX Sortino Ratio Rank: 64
SIFAX Omega Ratio Rank: 62
SIFAX Calmar Ratio Rank: 93
SIFAX Martin Ratio Rank: 86

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.

DIFIX vs. SIFAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Diversified Income Fund (DIFIX) and SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund (SIFAX). 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.

	DIFIX	SIFAX	Difference
Sharpe ratio: Return per unit of total volatility	2.36	2.31	+0.05
Sortino ratio: Return per unit of downside risk	3.47	3.36	+0.12
Omega ratio: Gain probability vs. loss probability	1.46	1.44	+0.02
Calmar ratio: Return relative to maximum drawdown	2.62	5.18	-2.56
Martin ratio: Return relative to average drawdown	11.21	16.54	-5.32
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DIFIX vs. SIFAX - Sharpe Ratio Comparison

The current DIFIX Sharpe Ratio is 2.36, which is comparable to the SIFAX Sharpe Ratio of 2.31. The chart below compares the historical Sharpe Ratios of DIFIX and SIFAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	DIFIX	SIFAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.36	2.31	+0.05
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.48	1.05	-0.57
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.65	0.68	-0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.66	0.34	+0.32

Drawdowns

DIFIX vs. SIFAX - Drawdown Comparison

The maximum DIFIX drawdown since its inception was -35.04%, which is greater than SIFAX's maximum drawdown of -23.62%. Use the drawdown chart below to compare losses from any high point for DIFIX and SIFAX.

Drawdown Indicators

	DIFIX	SIFAX	Difference
Max Drawdown Largest peak-to-trough decline	-35.04%	-23.62%	-11.42%
Max Drawdown (1Y) Largest decline over 1 year	-4.48%	-2.41%	-2.07%
Max Drawdown (3Y) Largest decline over 3 years	-7.29%	-3.57%	-3.72%
Max Drawdown (5Y) Largest decline over 5 years	-19.70%	-8.32%	-11.38%
Max Drawdown (10Y) Largest decline over 10 years	-23.69%	-14.69%	-9.00%
Current Drawdown Current decline from peak	-0.04%	-1.83%	+1.79%
Average Drawdown Average peak-to-trough decline	-3.86%	-8.55%	+4.69%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.05%	0.75%	+0.30%

Volatility

DIFIX vs. SIFAX - Volatility Comparison

The current volatility for MFS Diversified Income Fund (DIFIX) is 1.62%, while SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund (SIFAX) has a volatility of 2.18%. This indicates that DIFIX experiences smaller price fluctuations and is considered to be less risky than SIFAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DIFIX	SIFAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.62%	2.18%	-0.56%
Volatility (6M) Calculated over the trailing 6-month period	3.85%	4.69%	-0.84%
Volatility (1Y) Calculated over the trailing 1-year period	4.99%	5.41%	-0.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.84%	5.60%	+1.24%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.51%	5.22%	+2.29%

DIFIX vs. SIFAX - Expense Ratio Comparison

DIFIX has a 0.73% expense ratio, which is lower than SIFAX's 0.90% expense ratio.

Dividends

DIFIX vs. SIFAX - Dividend Comparison

DIFIX's dividend yield for the trailing twelve months is around 5.73%, more than SIFAX's 4.21% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIFIX MFS Diversified Income Fund	5.73%	5.62%	3.86%	3.12%	3.99%	4.95%	2.83%	3.13%	4.39%	3.79%	3.76%	7.57%
SIFAX SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund	4.21%	4.55%	3.25%	3.82%	11.90%	7.89%	1.45%	1.49%	1.90%	1.39%	1.15%	0.48%

Frequently Asked Questions

Can I hold both DIFIX and SIFAX in my portfolio?

DIFIX and SIFAX have a correlation of 0.01, 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 SIFAX?

SIFAX has higher volatility (2.18%) compared to DIFIX (1.62%). In terms of maximum drawdown, DIFIX dropped -35.04% vs SIFAX's -23.62%.

Which has better risk-adjusted returns?

DIFIX currently has the higher Sharpe Ratio (2.36 vs 2.31), 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.