LSSAX vs. LSIIX

Last updated Jun 23, 2026

LSSAX (Loomis Sayles Securitized Asset Fund) and LSIIX (Loomis Sayles Investment Grade Bond Fund Class Y) are both mutual funds - LSSAX is a Intermediate Core Bond fund managed by Loomis Sayles Funds, while LSIIX is a Total Bond Market fund managed by Natixis. Over the past 10 years, LSSAX returned 2.52%/yr vs 3.09%/yr for LSIIX. A 0.65 correlation means they provide meaningful diversification when combined. LSSAX charges 0.00%/yr vs 0.54%/yr for LSIIX.

Performance

LSSAX vs. LSIIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Loomis Sayles Securitized Asset Fund (LSSAX) and Loomis Sayles Investment Grade Bond Fund Class Y (LSIIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LSSAX achieves a 1.49% return, which is significantly higher than LSIIX's 0.46% return. Over the past 10 years, LSSAX has underperformed LSIIX with an annualized return of 2.52%, while LSIIX has yielded a comparatively higher 3.09% annualized return.

LSSAX

• 1D: 0.25%
• 1M: 0.86%
• YTD: 1.49%
• 6M: 1.62%
• 1Y: 6.57%
• 3Y*: 5.90%
• 5Y*: 1.46%
• 10Y*: 2.52%

LSIIX

• 1D: 0.21%
• 1M: 0.94%
• YTD: 0.46%
• 6M: 0.56%
• 1Y: 3.36%
• 3Y*: 4.56%
• 5Y*: 0.83%
• 10Y*: 3.09%

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

LSSAX vs. LSIIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
LSSAX Loomis Sayles Securitized Asset Fund	1.49%	8.32%	3.94%	7.01%	-11.82%	0.64%	4.68%	6.81%	2.48%	3.40%
LSIIX Loomis Sayles Investment Grade Bond Fund Class Y	0.46%	5.58%	2.91%	7.50%	-11.31%	0.18%	11.60%	9.04%	-0.31%	6.65%

Correlation

The correlation between LSSAX and LSIIX is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (10Y) Calculated over the trailing 10-year period	0.77
Correlation (All Time) Calculated using the full available price history since Mar 3, 2006	0.65

Over the past year, LSSAX and LSIIX have become more correlated (0.89) than their long-term average of 0.65, meaning their price movements have been converging.

Return for Risk

LSSAX vs. LSIIX — Risk / Return Rank

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

LSSAX

LSSAX Risk / Return Rank: 64
LSSAX Sharpe Ratio Rank: 51
LSSAX Sortino Ratio Rank: 62
LSSAX Omega Ratio Rank: 54
LSSAX Calmar Ratio Rank: 84
LSSAX Martin Ratio Rank: 67

LSIIX

LSIIX Risk / Return Rank: 15
LSIIX Sharpe Ratio Rank: 15
LSIIX Sortino Ratio Rank: 14
LSIIX Omega Ratio Rank: 14
LSIIX Calmar Ratio Rank: 16
LSIIX Martin Ratio Rank: 14

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. LSIIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Loomis Sayles Securitized Asset Fund (LSSAX) and Loomis Sayles Investment Grade Bond Fund Class Y (LSIIX). 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.

	LSSAX	LSIIX	Difference
Sharpe ratio: Return per unit of total volatility	1.94	1.01	+0.93
Sortino ratio: Return per unit of downside risk	3.01	1.49	+1.53
Omega ratio: Gain probability vs. loss probability	1.37	1.18	+0.19
Calmar ratio: Return relative to maximum drawdown	3.69	1.34	+2.36
Martin ratio: Return relative to average drawdown	12.25	3.69	+8.56

LSSAX vs. LSIIX - Sharpe Ratio Comparison

The current LSSAX Sharpe Ratio is 1.94, which is higher than the LSIIX Sharpe Ratio of 1.01. The chart below compares the historical Sharpe Ratios of LSSAX and LSIIX, 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

LSSAX vs. LSIIX - Drawdown Comparison

The maximum LSSAX drawdown since its inception was -16.40%, smaller than the maximum LSIIX drawdown of -20.77%. Use the drawdown chart below to compare losses from any high point for LSSAX and LSIIX.

Drawdown Indicators

	LSSAX	LSIIX	Difference
Max Drawdown Largest peak-to-trough decline	-16.40%	-20.77%	+4.37%
Max Drawdown (1Y) Largest decline over 1 year	-2.16%	-2.99%	+0.83%
Max Drawdown (3Y) Largest decline over 3 years	-5.91%	-5.45%	-0.46%
Max Drawdown (5Y) Largest decline over 5 years	-16.40%	-15.62%	-0.78%
Max Drawdown (10Y) Largest decline over 10 years	-16.40%	-15.62%	-0.78%
Current Drawdown Current decline from peak	-0.36%	-1.13%	+0.77%
Average Drawdown Average peak-to-trough decline	-1.97%	-2.42%	+0.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.73%	1.03%	-0.30%

Volatility

LSSAX vs. LSIIX - Volatility Comparison

Loomis Sayles Securitized Asset Fund (LSSAX) has a higher volatility of 1.31% compared to Loomis Sayles Investment Grade Bond Fund Class Y (LSIIX) at 1.16%. This indicates that LSSAX's price experiences larger fluctuations and is considered to be riskier than LSIIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LSSAX	LSIIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.31%	1.16%	+0.15%
Volatility (6M) Calculated over the trailing 6-month period	2.75%	2.89%	-0.14%
Volatility (1Y) Calculated over the trailing 1-year period	4.11%	3.96%	+0.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.80%	5.29%	+0.51%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.43%	4.51%	-0.08%

LSSAX vs. LSIIX - Expense Ratio Comparison

LSSAX has a 0.00% expense ratio, which is lower than LSIIX's 0.54% expense ratio.

Dividends

LSSAX vs. LSIIX - Dividend Comparison

LSSAX's dividend yield for the trailing twelve months is around 4.33%, more than LSIIX's 3.53% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LSIIX Loomis Sayles Investment Grade Bond Fund Class Y	3.53%	3.68%	4.86%	4.25%	3.32%	4.10%	8.20%	3.56%	2.18%	4.10%	6.71%	3.91%
LSSAX Loomis Sayles Securitized Asset Fund	4.33%	4.23%	4.54%	5.65%	6.47%	6.38%	5.95%	5.48%	5.62%	5.42%	5.12%	5.20%

Frequently Asked Questions

Can I hold both LSSAX and LSIIX in my portfolio?

LSSAX and LSIIX have a correlation of 0.89, 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 LSIIX?

LSSAX has higher volatility (1.31%) compared to LSIIX (1.16%). In terms of maximum drawdown, LSSAX dropped -16.40% vs LSIIX's -20.77%.

Which has better risk-adjusted returns?

LSSAX currently has the higher Sharpe Ratio (1.94 vs 1.01), 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.