TSI vs. MZLSX

Last updated Jul 15, 2026

TSI (TCW Strategic Income Fund Inc.) and MZLSX (Muzinich Low Duration Fund) are both Multisector Bonds funds. Over the past 10 years, TSI returned 4.83%/yr vs 3.71%/yr for MZLSX. At a 0.19 correlation, their price movements are largely independent.

Performance

TSI vs. MZLSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in TCW Strategic Income Fund Inc. (TSI) and Muzinich Low Duration Fund (MZLSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TSI achieves a -7.37% return, which is significantly lower than MZLSX's 1.63% return. Over the past 10 years, TSI has outperformed MZLSX with an annualized return of 4.83%, while MZLSX has yielded a comparatively lower 3.71% annualized return.

TSI

• 1D: -0.45%
• 1M: -1.59%
• 6M: -6.81%
• YTD: -7.37%
• 1Y: -2.65%
• 3Y*: 6.01%
• 5Y*: 1.66%
• 10Y*: 4.83%

MZLSX

• 1D: -0.11%
• 1M: 0.19%
• 6M: 1.41%
• YTD: 1.63%
• 1Y: 4.47%
• 3Y*: 6.29%
• 5Y*: 3.72%
• 10Y*: 3.71%

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

TSI vs. MZLSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TSI TCW Strategic Income Fund Inc.	-7.37%	9.72%	13.45%	7.13%	-14.33%	8.08%	3.77%	17.97%	-3.83%	16.42%
MZLSX Muzinich Low Duration Fund	1.63%	6.38%	6.30%	7.63%	-3.41%	2.50%	2.64%	7.86%	0.80%	4.26%

Correlation

The correlation between TSI and MZLSX is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.20
Correlation (3Y) Calculated over the trailing 3-year period	0.24
Correlation (5Y) Calculated over the trailing 5-year period	0.23
Correlation (10Y) Calculated over the trailing 10-year period	0.19
Correlation (All Time) Calculated using the full available price history since Jul 5, 2016	0.19

Return for Risk

TSI vs. MZLSX — Risk / Return Rank

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

TSI

TSI Risk / Return Rank: 2
TSI Sharpe Ratio Rank: 2
TSI Sortino Ratio Rank: 2
TSI Omega Ratio Rank: 2
TSI Calmar Ratio Rank: 2
TSI Martin Ratio Rank: 2

MZLSX

MZLSX Risk / Return Rank: 92
MZLSX Sharpe Ratio Rank: 96
MZLSX Sortino Ratio Rank: 96
MZLSX Omega Ratio Rank: 96
MZLSX Calmar Ratio Rank: 82
MZLSX 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.

TSI vs. MZLSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for TCW Strategic Income Fund Inc. (TSI) and Muzinich Low Duration Fund (MZLSX). 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.

	TSI	MZLSX	Difference
Sharpe ratio: Return per unit of total volatility	-0.32	2.84	-3.16
Sortino ratio: Return per unit of downside risk	-0.37	4.55	-4.92
Omega ratio: Gain probability vs. loss probability	0.95	1.69	-0.74
Calmar ratio: Return relative to maximum drawdown	-0.32	2.98	-3.30
Martin ratio: Return relative to average drawdown	-0.68	13.47	-14.14

TSI vs. MZLSX - Sharpe Ratio Comparison

The current TSI Sharpe Ratio is -0.32, which is lower than the MZLSX Sharpe Ratio of 2.84. The chart below compares the historical Sharpe Ratios of TSI and MZLSX, 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

TSI vs. MZLSX - Drawdown Comparison

The maximum TSI drawdown since its inception was -60.35%, which is greater than MZLSX's maximum drawdown of -12.66%. Use the drawdown chart below to compare losses from any high point for TSI and MZLSX.

Drawdown Indicators

	TSI	MZLSX	Difference
Max Drawdown Largest peak-to-trough decline	-60.35%	-12.66%	-47.69%
Max Drawdown (1Y) Largest decline over 1 year	-8.30%	-1.50%	-6.80%
Max Drawdown (3Y) Largest decline over 3 years	-8.30%	-1.50%	-6.80%
Max Drawdown (5Y) Largest decline over 5 years	-18.56%	-6.09%	-12.47%
Max Drawdown (10Y) Largest decline over 10 years	-30.00%	-12.66%	-17.34%
Current Drawdown Current decline from peak	-7.40%	-0.21%	-7.19%
Average Drawdown Average peak-to-trough decline	-7.69%	-0.84%	-6.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.92%	0.33%	+3.59%

Volatility

TSI vs. MZLSX - Volatility Comparison

TCW Strategic Income Fund Inc. (TSI) has a higher volatility of 2.22% compared to Muzinich Low Duration Fund (MZLSX) at 0.42%. This indicates that TSI's price experiences larger fluctuations and is considered to be riskier than MZLSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TSI	MZLSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.22%	0.42%	+1.80%
Volatility (6M) Calculated over the trailing 6-month period	7.12%	1.36%	+5.76%
Volatility (1Y) Calculated over the trailing 1-year period	8.35%	1.58%	+6.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.84%	1.63%	+9.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.03%	2.13%	+11.90%

Dividends

TSI vs. MZLSX - Dividend Comparison

TSI's dividend yield for the trailing twelve months is around 7.79%, more than MZLSX's 7.22% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MZLSX Muzinich Low Duration Fund	7.22%	7.03%	4.77%	4.88%	3.85%	6.36%	2.08%	2.24%	8.62%	1.86%	0.79%	0.00%
TSI TCW Strategic Income Fund Inc.	7.79%	6.58%	8.00%	7.73%	7.00%	6.36%	4.83%	7.39%	7.07%	5.36%	5.21%	4.08%

Frequently Asked Questions

Can I hold both TSI and MZLSX in my portfolio?

TSI and MZLSX have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TSI or MZLSX?

TSI has higher volatility (2.22%) compared to MZLSX (0.42%). In terms of maximum drawdown, TSI dropped -60.35% vs MZLSX's -12.66%.

Which has better risk-adjusted returns?

MZLSX currently has the higher Sharpe Ratio (2.84 vs -0.32), 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.