NEFZX vs. LSIIX

Last updated Jun 3, 2026

NEFZX (Loomis Sayles Strategic Income Fund) and LSIIX (Loomis Sayles Investment Grade Bond Fund Class Y) are both mutual funds - NEFZX is a Multisector Bonds fund managed by Natixis, while LSIIX is a Total Bond Market fund managed by Natixis. Over the past 10 years, NEFZX returned 3.23%/yr vs 3.13%/yr for LSIIX. A 0.70 correlation means they provide meaningful diversification when combined. NEFZX charges 0.95%/yr vs 0.54%/yr for LSIIX.

Performance

NEFZX vs. LSIIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Loomis Sayles Strategic Income Fund (NEFZX) 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, NEFZX achieves a -0.21% return, which is significantly lower than LSIIX's 0.25% return. Both investments have delivered pretty close results over the past 10 years, with NEFZX having a 3.23% annualized return and LSIIX not far behind at 3.13%.

NEFZX

• 1D: -0.16%
• 1M: -0.16%
• YTD: -0.21%
• 6M: -0.06%
• 1Y: 5.52%
• 3Y*: 7.38%
• 5Y*: 2.21%
• 10Y*: 3.23%

LSIIX

• 1D: -0.10%
• 1M: 0.22%
• YTD: 0.25%
• 6M: 0.33%
• 1Y: 3.99%
• 3Y*: 4.49%
• 5Y*: 0.90%
• 10Y*: 3.13%

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

NEFZX vs. LSIIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NEFZX Loomis Sayles Strategic Income Fund	-0.21%	8.92%	7.05%	8.02%	-12.82%	3.85%	1.15%	10.84%	-3.00%	7.22%
LSIIX Loomis Sayles Investment Grade Bond Fund Class Y	0.25%	5.58%	2.91%	7.50%	-11.31%	0.18%	11.60%	9.04%	-0.31%	6.65%

Correlation

The correlation between NEFZX and LSIIX is 0.80, 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	0.80
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.81
Correlation (10Y) Calculated over the trailing 10-year period	0.69
Correlation (All Time) Calculated using the full available price history since Jan 2, 1997	0.70

The correlation between NEFZX and LSIIX shifts across timeframes, from 0.69 (10 years) to 0.84 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

NEFZX vs. LSIIX — Risk / Return Rank

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

NEFZX

NEFZX Risk / Return Rank: 24
NEFZX Sharpe Ratio Rank: 27
NEFZX Sortino Ratio Rank: 26
NEFZX Omega Ratio Rank: 30
NEFZX Calmar Ratio Rank: 18
NEFZX Martin Ratio Rank: 20

LSIIX

LSIIX Risk / Return Rank: 14
LSIIX Sharpe Ratio Rank: 16
LSIIX Sortino Ratio Rank: 16
LSIIX Omega Ratio Rank: 15
LSIIX Calmar Ratio Rank: 13
LSIIX Martin Ratio Rank: 12

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.

NEFZX vs. LSIIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Loomis Sayles Strategic Income Fund (NEFZX) 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.

	NEFZX	LSIIX	Difference
Sharpe ratio Return per unit of total volatility	1.50	1.16	+0.34
Sortino ratio Return per unit of downside risk	2.17	1.71	+0.47
Omega ratio Gain probability vs. loss probability	1.29	1.21	+0.08
Calmar ratio Return relative to maximum drawdown	1.58	1.30	+0.28
Martin ratio Return relative to average drawdown	5.43	3.62	+1.82
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NEFZX vs. LSIIX - Sharpe Ratio Comparison

The current NEFZX Sharpe Ratio is 1.50, which is comparable to the LSIIX Sharpe Ratio of 1.16. The chart below compares the historical Sharpe Ratios of NEFZX 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.

Sharpe Ratios by Period

	NEFZX	LSIIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.50	1.16	+0.34
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	0.18	+0.24
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.63	0.71	-0.08
Sharpe Ratio (All Time) Calculated using the full available price history	1.12	1.14	-0.02

Drawdowns

NEFZX vs. LSIIX - Drawdown Comparison

The maximum NEFZX drawdown since its inception was -32.07%, which is greater than LSIIX's maximum drawdown of -20.77%. Use the drawdown chart below to compare losses from any high point for NEFZX and LSIIX.

Drawdown Indicators

	NEFZX	LSIIX	Difference
Max Drawdown Largest peak-to-trough decline	-32.07%	-20.77%	-11.30%
Max Drawdown (1Y) Largest decline over 1 year	-4.17%	-2.99%	-1.18%
Max Drawdown (3Y) Largest decline over 3 years	-5.88%	-5.45%	-0.43%
Max Drawdown (5Y) Largest decline over 5 years	-17.19%	-15.62%	-1.57%
Max Drawdown (10Y) Largest decline over 10 years	-17.21%	-15.62%	-1.59%
Current Drawdown Current decline from peak	-1.94%	-1.33%	-0.61%
Average Drawdown Average peak-to-trough decline	-3.36%	-2.42%	-0.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.21%	1.16%	+0.05%

Volatility

NEFZX vs. LSIIX - Volatility Comparison

Loomis Sayles Strategic Income Fund (NEFZX) has a higher volatility of 1.69% compared to Loomis Sayles Investment Grade Bond Fund Class Y (LSIIX) at 1.34%. This indicates that NEFZX'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

	NEFZX	LSIIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.69%	1.34%	+0.35%
Volatility (6M) Calculated over the trailing 6-month period	3.42%	2.85%	+0.57%
Volatility (1Y) Calculated over the trailing 1-year period	4.41%	4.04%	+0.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.57%	5.28%	+0.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.27%	4.52%	+0.75%

NEFZX vs. LSIIX - Expense Ratio Comparison

NEFZX has a 0.95% expense ratio, which is higher than LSIIX's 0.54% expense ratio.

Dividends

NEFZX vs. LSIIX - Dividend Comparison

NEFZX's dividend yield for the trailing twelve months is around 3.96%, more than LSIIX's 3.54% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LSIIX Loomis Sayles Investment Grade Bond Fund Class Y	3.54%	3.68%	4.86%	4.25%	3.32%	4.10%	8.20%	3.56%	2.18%	4.10%	6.71%	3.91%
NEFZX Loomis Sayles Strategic Income Fund	3.96%	3.83%	5.60%	5.37%	6.34%	2.64%	4.20%	3.51%	4.28%	4.06%	4.76%	10.22%

Frequently Asked Questions

Can I hold both NEFZX and LSIIX in my portfolio?

NEFZX and LSIIX have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NEFZX or LSIIX?

NEFZX has higher volatility (1.69%) compared to LSIIX (1.34%). In terms of maximum drawdown, NEFZX dropped -32.07% vs LSIIX's -20.77%.

Which has better risk-adjusted returns?

NEFZX currently has the higher Sharpe Ratio (1.50 vs 1.16), 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.