MWESX vs. SSASX

Last updated Jun 4, 2026

MWESX (MetWest ESG Securitized Fund) and SSASX (State Street Income Fund) are both Intermediate Core-Plus Bond funds. Over the past 3 years, MWESX returned 7.37%/yr vs 2.95%/yr for SSASX. Their correlation of 0.94 suggests significant overlap in exposure. MWESX charges 0.49%/yr vs 0.20%/yr for SSASX.

Performance

MWESX vs. SSASX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MetWest ESG Securitized Fund (MWESX) and State Street Income Fund (SSASX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

MWESX

• 1D: 0.00%
• 1M: 0.37%
• YTD: 0.82%
• 6M: 0.99%
• 1Y: 6.62%
• 3Y*: 7.37%
• 5Y*: —
• 10Y*: —

SSASX

• 1D: 0.00%
• 1M: 0.35%
• YTD: -0.00%
• 6M: -0.08%
• 1Y: 5.12%
• 3Y*: 2.95%
• 5Y*: -0.64%
• 10Y*: —

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

MWESX vs. SSASX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
MWESX MetWest ESG Securitized Fund	0.82%	8.16%	8.45%	5.41%	-14.50%	-0.35%
SSASX State Street Income Fund	-0.00%	7.49%	-0.95%	4.83%	-13.74%	-0.31%

Correlation

The correlation between MWESX and SSASX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (All Time) Calculated using the full available price history since Oct 1, 2021	0.94

The correlation between MWESX and SSASX has been stable across timeframes, ranging from 0.94 to 0.95 - a consistent structural relationship.

Return for Risk

MWESX vs. SSASX — Risk / Return Rank

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

MWESX

MWESX Risk / Return Rank: 35
MWESX Sharpe Ratio Rank: 33
MWESX Sortino Ratio Rank: 37
MWESX Omega Ratio Rank: 34
MWESX Calmar Ratio Rank: 40
MWESX Martin Ratio Rank: 32

SSASX

SSASX Risk / Return Rank: 18
SSASX Sharpe Ratio Rank: 18
SSASX Sortino Ratio Rank: 19
SSASX Omega Ratio Rank: 17
SSASX Calmar Ratio Rank: 17
SSASX Martin Ratio Rank: 16

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.

MWESX vs. SSASX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MetWest ESG Securitized Fund (MWESX) and State Street Income Fund (SSASX). 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.

	MWESX	SSASX	Difference
Sharpe ratio: Return per unit of total volatility	1.67	1.22	+0.45
Sortino ratio: Return per unit of downside risk	2.56	1.83	+0.74
Omega ratio: Gain probability vs. loss probability	1.31	1.22	+0.09
Calmar ratio: Return relative to maximum drawdown	2.40	1.50	+0.90
Martin ratio: Return relative to average drawdown	7.30	4.51	+2.80
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MWESX vs. SSASX - Sharpe Ratio Comparison

The current MWESX Sharpe Ratio is 1.67, which is higher than the SSASX Sharpe Ratio of 1.22. The chart below compares the historical Sharpe Ratios of MWESX and SSASX, 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

	MWESX	SSASX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.67	1.22	+0.45
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.10	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.19	-0.10	+0.29

Drawdowns

MWESX vs. SSASX - Drawdown Comparison

The maximum MWESX drawdown since its inception was -19.57%, roughly equal to the maximum SSASX drawdown of -19.65%. Use the drawdown chart below to compare losses from any high point for MWESX and SSASX.

Drawdown Indicators

	MWESX	SSASX	Difference
Max Drawdown Largest peak-to-trough decline	-19.57%	-19.65%	+0.08%
Max Drawdown (1Y) Largest decline over 1 year	-2.71%	-3.42%	+0.71%
Max Drawdown (3Y) Largest decline over 3 years	-6.40%	-7.97%	+1.57%
Max Drawdown (5Y) Largest decline over 5 years	—	-19.65%	—
Current Drawdown Current decline from peak	-1.22%	-5.26%	+4.04%
Average Drawdown Average peak-to-trough decline	-6.87%	-9.68%	+2.81%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.89%	1.14%	-0.25%

Volatility

MWESX vs. SSASX - Volatility Comparison

MetWest ESG Securitized Fund (MWESX) and State Street Income Fund (SSASX) have volatilities of 1.46% and 1.46%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MWESX	SSASX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.46%	1.46%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	2.83%	2.96%	-0.13%
Volatility (1Y) Calculated over the trailing 1-year period	3.91%	4.22%	-0.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.82%	6.49%	+0.33%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.82%	6.49%	+0.33%

MWESX vs. SSASX - Expense Ratio Comparison

MWESX has a 0.49% expense ratio, which is higher than SSASX's 0.20% expense ratio.

Dividends

MWESX vs. SSASX - Dividend Comparison

MWESX's dividend yield for the trailing twelve months is around 4.58%, more than SSASX's 4.00% yield.

Position	TTM	2025	2024	2023	2022	2021
MWESX MetWest ESG Securitized Fund	4.58%	4.55%	7.39%	3.63%	2.07%	0.15%
SSASX State Street Income Fund	4.00%	4.01%	2.76%	2.86%	2.48%	3.77%

Frequently Asked Questions

Can I hold both MWESX and SSASX in my portfolio?

With a correlation of 0.95, MWESX and SSASX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, MWESX or SSASX?

SSASX has higher volatility (1.46%) compared to MWESX (1.46%). In terms of maximum drawdown, MWESX dropped -19.57% vs SSASX's -19.65%.

Which has better risk-adjusted returns?

MWESX currently has the higher Sharpe Ratio (1.67 vs 1.22), 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.