LIGYX vs. NEFSX

Last updated Jul 17, 2026

LIGYX (Loomis Sayles International Growth Fund) and NEFSX (Natixis Funds Trust I U.S. Equity Opportunities Fund) are both mutual funds - LIGYX is a Foreign Large Cap Equities fund managed by Natixis, while NEFSX is a Large Cap Growth Equities fund managed by Natixis. Over the past 5 years, LIGYX returned 1.65%/yr vs 11.07%/yr for NEFSX. A 0.78 correlation means they provide meaningful diversification when combined. LIGYX charges 0.95%/yr vs 1.14%/yr for NEFSX.

Performance

LIGYX vs. NEFSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Loomis Sayles International Growth Fund (LIGYX) and Natixis Funds Trust I U.S. Equity Opportunities Fund (NEFSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LIGYX achieves a -7.56% return, which is significantly lower than NEFSX's 1.05% return.

LIGYX

• 1D: 0.95%
• 1M: -1.94%
• 6M: -8.35%
• YTD: -7.56%
• 1Y: -6.48%
• 3Y*: 5.09%
• 5Y*: 1.65%
• 10Y*: —

NEFSX

• 1D: 0.71%
• 1M: 1.49%
• 6M: 0.61%
• YTD: 1.05%
• 1Y: 8.78%
• 3Y*: 16.94%
• 5Y*: 11.07%
• 10Y*: 14.87%

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

LIGYX vs. NEFSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
LIGYX Loomis Sayles International Growth Fund	-7.56%	9.53%	13.96%	20.81%	-17.49%	-3.79%	1.08%
NEFSX Natixis Funds Trust I U.S. Equity Opportunities Fund	1.05%	17.23%	25.79%	37.13%	-21.15%	23.21%	1.25%

Correlation

The correlation between LIGYX and NEFSX 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	0.77
Correlation (5Y) Calculated over the trailing 5-year period	0.80
Correlation (All Time) Calculated using the full available price history since Dec 22, 2020	0.78

The correlation between LIGYX and NEFSX has been stable across timeframes, ranging from 0.77 to 0.80 - a consistent structural relationship.

Return for Risk

LIGYX vs. NEFSX — Risk / Return Rank

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

LIGYX

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

NEFSX

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

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.

LIGYX vs. NEFSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Loomis Sayles International Growth Fund (LIGYX) and Natixis Funds Trust I U.S. Equity Opportunities Fund (NEFSX). 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.

	LIGYX	NEFSX	Difference
Sharpe ratio: Return per unit of total volatility	-0.31	0.82	-1.13
Sortino ratio: Return per unit of downside risk	-0.30	1.20	-1.50
Omega ratio: Gain probability vs. loss probability	0.97	1.15	-0.18
Calmar ratio: Return relative to maximum drawdown	-0.28	0.98	-1.26
Martin ratio: Return relative to average drawdown	-0.58	2.97	-3.55

LIGYX vs. NEFSX - Sharpe Ratio Comparison

The current LIGYX Sharpe Ratio is -0.31, which is lower than the NEFSX Sharpe Ratio of 0.82. The chart below compares the historical Sharpe Ratios of LIGYX and NEFSX, 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

LIGYX vs. NEFSX - Drawdown Comparison

The maximum LIGYX drawdown since its inception was -38.11%, smaller than the maximum NEFSX drawdown of -55.83%. Use the drawdown chart below to compare losses from any high point for LIGYX and NEFSX.

Drawdown Indicators

	LIGYX	NEFSX	Difference
Max Drawdown Largest peak-to-trough decline	-38.11%	-55.83%	+17.72%
Max Drawdown (1Y) Largest decline over 1 year	-22.58%	-11.20%	-11.38%
Max Drawdown (3Y) Largest decline over 3 years	-22.58%	-19.58%	-3.00%
Max Drawdown (5Y) Largest decline over 5 years	-33.83%	-30.08%	-3.75%
Max Drawdown (10Y) Largest decline over 10 years	—	-32.27%	—
Current Drawdown Current decline from peak	-12.97%	-0.89%	-12.08%
Average Drawdown Average peak-to-trough decline	-13.72%	-11.71%	-2.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.99%	3.43%	+6.56%

Volatility

LIGYX vs. NEFSX - Volatility Comparison

Loomis Sayles International Growth Fund (LIGYX) has a higher volatility of 6.13% compared to Natixis Funds Trust I U.S. Equity Opportunities Fund (NEFSX) at 3.87%. This indicates that LIGYX's price experiences larger fluctuations and is considered to be riskier than NEFSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LIGYX	NEFSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.13%	3.87%	+2.26%
Volatility (6M) Calculated over the trailing 6-month period	15.95%	10.08%	+5.87%
Volatility (1Y) Calculated over the trailing 1-year period	20.32%	13.43%	+6.89%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.13%	19.65%	+1.48%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.76%	19.64%	+1.12%

LIGYX vs. NEFSX - Expense Ratio Comparison

LIGYX has a 0.95% expense ratio, which is lower than NEFSX's 1.14% expense ratio.

Dividends

LIGYX vs. NEFSX - Dividend Comparison

LIGYX's dividend yield for the trailing twelve months is around 0.61%, less than NEFSX's 9.21% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LIGYX Loomis Sayles International Growth Fund	0.61%	1.70%	0.64%	0.57%	0.69%	1.72%	0.08%	0.00%	0.00%	0.00%	0.00%	0.00%
NEFSX Natixis Funds Trust I U.S. Equity Opportunities Fund	9.21%	5.92%	6.38%	8.13%	18.10%	11.12%	13.07%	10.85%	11.18%	3.55%	1.88%	5.09%

Frequently Asked Questions

Can I hold both LIGYX and NEFSX in my portfolio?

LIGYX and NEFSX 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, LIGYX or NEFSX?

LIGYX has higher volatility (6.13%) compared to NEFSX (3.87%). In terms of maximum drawdown, LIGYX dropped -38.11% vs NEFSX's -55.83%.

Which has better risk-adjusted returns?

NEFSX currently has the higher Sharpe Ratio (0.82 vs -0.31), 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.