MMT vs. RPSIX

Last updated Jun 3, 2026

MMT (MFS Multimarket Income Trust) and RPSIX (T. Rowe Price Spectrum Income Fund) are both Multisector Bonds funds. Over the past 10 years, MMT returned 6.03%/yr vs 3.91%/yr for RPSIX. At a 0.24 correlation, their price movements are largely independent. MMT charges 0.03%/yr vs 0.62%/yr for RPSIX.

Performance

MMT vs. RPSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Multimarket Income Trust (MMT) and T. Rowe Price Spectrum Income Fund (RPSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MMT achieves a 0.79% return, which is significantly lower than RPSIX's 1.73% return. Over the past 10 years, MMT has outperformed RPSIX with an annualized return of 6.03%, while RPSIX has yielded a comparatively lower 3.91% annualized return.

MMT

• 1D: -0.22%
• 1M: -1.43%
• YTD: 0.79%
• 6M: 0.65%
• 1Y: 6.42%
• 3Y*: 9.16%
• 5Y*: 2.10%
• 10Y*: 6.03%

RPSIX

• 1D: -0.09%
• 1M: 0.83%
• YTD: 1.73%
• 6M: 2.79%
• 1Y: 8.76%
• 3Y*: 7.67%
• 5Y*: 2.62%
• 10Y*: 3.91%

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

MMT vs. RPSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MMT MFS Multimarket Income Trust	0.79%	8.10%	12.40%	10.14%	-22.96%	13.11%	8.88%	30.32%	-7.70%	9.29%
RPSIX T. Rowe Price Spectrum Income Fund	1.73%	9.91%	5.62%	8.55%	-11.40%	2.60%	6.07%	11.57%	-2.61%	7.03%

Correlation

The correlation between MMT and RPSIX is 0.33, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.33
Correlation (3Y) Calculated over the trailing 3-year period	0.43
Correlation (5Y) Calculated over the trailing 5-year period	0.43
Correlation (10Y) Calculated over the trailing 10-year period	0.37
Correlation (All Time) Calculated using the full available price history since Jul 2, 1990	0.24

The correlation between MMT and RPSIX shifts across timeframes, from 0.24 (all time) to 0.43 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

MMT vs. RPSIX — Risk / Return Rank

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

MMT

MMT Risk / Return Rank: 10
MMT Sharpe Ratio Rank: 9
MMT Sortino Ratio Rank: 9
MMT Omega Ratio Rank: 9
MMT Calmar Ratio Rank: 13
MMT Martin Ratio Rank: 11

RPSIX

RPSIX Risk / Return Rank: 88
RPSIX Sharpe Ratio Rank: 88
RPSIX Sortino Ratio Rank: 94
RPSIX Omega Ratio Rank: 90
RPSIX Calmar Ratio Rank: 81
RPSIX Martin Ratio Rank: 90

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.

MMT vs. RPSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Multimarket Income Trust (MMT) and T. Rowe Price Spectrum Income Fund (RPSIX). 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.

	MMT	RPSIX	Difference
Sharpe ratio Return per unit of total volatility	0.74	2.86	-2.12
Sortino ratio Return per unit of downside risk	1.14	5.00	-3.86
Omega ratio Gain probability vs. loss probability	1.14	1.65	-0.51
Calmar ratio Return relative to maximum drawdown	1.22	3.70	-2.48
Martin ratio Return relative to average drawdown	3.25	17.93	-14.69
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MMT vs. RPSIX - Sharpe Ratio Comparison

The current MMT Sharpe Ratio is 0.74, which is lower than the RPSIX Sharpe Ratio of 2.86. The chart below compares the historical Sharpe Ratios of MMT and RPSIX, 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

	MMT	RPSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.74	2.86	-2.12
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.18	0.59	-0.40
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.42	0.87	-0.44
Sharpe Ratio (All Time) Calculated using the full available price history	0.41	1.50	-1.09

Drawdowns

MMT vs. RPSIX - Drawdown Comparison

The maximum MMT drawdown since its inception was -35.70%, which is greater than RPSIX's maximum drawdown of -16.73%. Use the drawdown chart below to compare losses from any high point for MMT and RPSIX.

Drawdown Indicators

	MMT	RPSIX	Difference
Max Drawdown Largest peak-to-trough decline	-35.70%	-16.73%	-18.97%
Max Drawdown (1Y) Largest decline over 1 year	-5.43%	-2.54%	-2.89%
Max Drawdown (3Y) Largest decline over 3 years	-8.23%	-4.92%	-3.31%
Max Drawdown (5Y) Largest decline over 5 years	-32.29%	-16.73%	-15.56%
Max Drawdown (10Y) Largest decline over 10 years	-35.70%	-16.73%	-18.97%
Current Drawdown Current decline from peak	-2.86%	-0.09%	-2.77%
Average Drawdown Average peak-to-trough decline	-5.25%	-1.69%	-3.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.05%	0.52%	+1.53%

Volatility

MMT vs. RPSIX - Volatility Comparison

MFS Multimarket Income Trust (MMT) has a higher volatility of 3.21% compared to T. Rowe Price Spectrum Income Fund (RPSIX) at 1.13%. This indicates that MMT's price experiences larger fluctuations and is considered to be riskier than RPSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MMT	RPSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.21%	1.13%	+2.08%
Volatility (6M) Calculated over the trailing 6-month period	6.70%	2.49%	+4.21%
Volatility (1Y) Calculated over the trailing 1-year period	8.73%	3.12%	+5.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.59%	4.51%	+7.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.30%	4.55%	+9.75%

MMT vs. RPSIX - Expense Ratio Comparison

MMT has a 0.03% expense ratio, which is lower than RPSIX's 0.62% expense ratio.

Dividends

MMT vs. RPSIX - Dividend Comparison

MMT's dividend yield for the trailing twelve months is around 8.90%, more than RPSIX's 7.98% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MMT MFS Multimarket Income Trust	8.90%	8.65%	8.65%	8.65%	9.38%	7.86%	8.07%	8.16%	9.86%	8.83%	8.71%	9.05%
RPSIX T. Rowe Price Spectrum Income Fund	7.98%	7.45%	6.57%	4.83%	3.99%	3.92%	3.64%	3.79%	4.73%	3.91%	3.75%	4.71%

Frequently Asked Questions

Can I hold both MMT and RPSIX in my portfolio?

MMT and RPSIX have a correlation of 0.33, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MMT or RPSIX?

MMT has higher volatility (3.21%) compared to RPSIX (1.13%). In terms of maximum drawdown, MMT dropped -35.70% vs RPSIX's -16.73%.

Which has better risk-adjusted returns?

RPSIX currently has the higher Sharpe Ratio (2.86 vs 0.74), 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.