LSSAX vs. SSAFX

Last updated Jun 4, 2026

LSSAX (Loomis Sayles Securitized Asset Fund) and SSAFX (State Street Aggregate Bond Index Portfolio) are both Intermediate Core Bond funds. Over the past 10 years, LSSAX returned 2.52%/yr vs 27.83%/yr for SSAFX. Their correlation of 0.86 suggests significant overlap in exposure. LSSAX charges 0.00%/yr vs 0.02%/yr for SSAFX.

Performance

LSSAX vs. SSAFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Loomis Sayles Securitized Asset Fund (LSSAX) and State Street Aggregate Bond Index Portfolio (SSAFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LSSAX achieves a 1.24% return, which is significantly higher than SSAFX's 0.42% return. Over the past 10 years, LSSAX has underperformed SSAFX with an annualized return of 2.52%, while SSAFX has yielded a comparatively higher 27.83% annualized return.

LSSAX

• 1D: 0.00%
• 1M: 0.60%
• YTD: 1.24%
• 6M: 1.22%
• 1Y: 7.13%
• 3Y*: 5.86%
• 5Y*: 1.40%
• 10Y*: 2.52%

SSAFX

• 1D: 0.05%
• 1M: 0.49%
• YTD: 0.42%
• 6M: 0.33%
• 1Y: 5.39%
• 3Y*: 3.90%
• 5Y*: 0.09%
• 10Y*: 27.83%

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

LSSAX vs. SSAFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
LSSAX Loomis Sayles Securitized Asset Fund	1.24%	8.32%	3.94%	7.01%	-11.82%	0.64%	4.68%	6.81%	2.48%	3.40%
SSAFX State Street Aggregate Bond Index Portfolio	0.42%	6.81%	1.34%	5.61%	-13.30%	-1.72%	978.57%	8.69%	-0.12%	3.38%

Correlation

The correlation between LSSAX and SSAFX is 0.78, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.78
Correlation (3Y) Calculated over the trailing 3-year period	0.90
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (10Y) Calculated over the trailing 10-year period	0.86
Correlation (All Time) Calculated using the full available price history since Sep 23, 2014	0.86

The correlation between LSSAX and SSAFX shifts across timeframes, from 0.78 (1 year) to 0.91 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

LSSAX vs. SSAFX — Risk / Return Rank

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

LSSAX

LSSAX Risk / Return Rank: 65
LSSAX Sharpe Ratio Rank: 52
LSSAX Sortino Ratio Rank: 63
LSSAX Omega Ratio Rank: 55
LSSAX Calmar Ratio Rank: 85
LSSAX Martin Ratio Rank: 72

SSAFX

SSAFX Risk / Return Rank: 26
SSAFX Sharpe Ratio Rank: 26
SSAFX Sortino Ratio Rank: 27
SSAFX Omega Ratio Rank: 24
SSAFX Calmar Ratio Rank: 27
SSAFX Martin Ratio Rank: 24

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.

LSSAX vs. SSAFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Loomis Sayles Securitized Asset Fund (LSSAX) and State Street Aggregate Bond Index Portfolio (SSAFX). 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.

	LSSAX	SSAFX	Difference
Sharpe ratio: Return per unit of total volatility	2.13	1.45	+0.69
Sortino ratio: Return per unit of downside risk	3.32	2.17	+1.16
Omega ratio: Gain probability vs. loss probability	1.41	1.26	+0.15
Calmar ratio: Return relative to maximum drawdown	4.05	1.96	+2.09
Martin ratio: Return relative to average drawdown	13.79	6.00	+7.79
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LSSAX vs. SSAFX - Sharpe Ratio Comparison

The current LSSAX Sharpe Ratio is 2.13, which is higher than the SSAFX Sharpe Ratio of 1.45. The chart below compares the historical Sharpe Ratios of LSSAX and SSAFX, 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

	LSSAX	SSAFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.13	1.45	+0.69
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.25	0.01	+0.24
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.58	0.10	+0.48
Sharpe Ratio (All Time) Calculated using the full available price history	0.95	0.09	+0.86

Drawdowns

LSSAX vs. SSAFX - Drawdown Comparison

The maximum LSSAX drawdown since its inception was -16.40%, smaller than the maximum SSAFX drawdown of -18.74%. Use the drawdown chart below to compare losses from any high point for LSSAX and SSAFX.

Drawdown Indicators

	LSSAX	SSAFX	Difference
Max Drawdown Largest peak-to-trough decline	-16.40%	-18.74%	+2.34%
Max Drawdown (1Y) Largest decline over 1 year	-2.16%	-2.74%	+0.58%
Max Drawdown (3Y) Largest decline over 3 years	-5.91%	-6.09%	+0.18%
Max Drawdown (5Y) Largest decline over 5 years	-16.40%	-18.10%	+1.70%
Max Drawdown (10Y) Largest decline over 10 years	-16.40%	-18.74%	+2.34%
Current Drawdown Current decline from peak	-0.61%	-2.62%	+2.01%
Average Drawdown Average peak-to-trough decline	-1.98%	-4.41%	+2.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.90%	0.90%	0.00%

Volatility

LSSAX vs. SSAFX - Volatility Comparison

Loomis Sayles Securitized Asset Fund (LSSAX) has a higher volatility of 1.47% compared to State Street Aggregate Bond Index Portfolio (SSAFX) at 1.29%. This indicates that LSSAX's price experiences larger fluctuations and is considered to be riskier than SSAFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LSSAX	SSAFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.47%	1.29%	+0.18%
Volatility (6M) Calculated over the trailing 6-month period	2.66%	2.65%	+0.01%
Volatility (1Y) Calculated over the trailing 1-year period	4.10%	3.74%	+0.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.78%	5.95%	-0.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.42%	277.51%	-273.09%

LSSAX vs. SSAFX - Expense Ratio Comparison

LSSAX has a 0.00% expense ratio, which is lower than SSAFX's 0.02% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

LSSAX vs. SSAFX - Dividend Comparison

LSSAX's dividend yield for the trailing twelve months is around 4.34%, more than SSAFX's 4.16% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LSSAX Loomis Sayles Securitized Asset Fund	4.34%	4.23%	4.54%	5.65%	6.47%	6.38%	5.95%	5.48%	5.62%	5.42%	5.12%	5.20%
SSAFX State Street Aggregate Bond Index Portfolio	4.16%	3.70%	3.76%	3.16%	2.49%	1.90%	2.41%	2.88%	2.82%	2.42%	2.21%	3.21%

Frequently Asked Questions

Can I hold both LSSAX and SSAFX in my portfolio?

LSSAX and SSAFX have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LSSAX or SSAFX?

LSSAX has higher volatility (1.47%) compared to SSAFX (1.29%). In terms of maximum drawdown, LSSAX dropped -16.40% vs SSAFX's -18.74%.

Which has better risk-adjusted returns?

LSSAX currently has the higher Sharpe Ratio (2.13 vs 1.45), 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.