VBMFX vs. NEFRX

Last updated Jun 5, 2026

VBMFX (Vanguard Total Bond Market Index Fund) and NEFRX (Loomis Sayles Core Plus Bond Fund) are both mutual funds - VBMFX is a Intermediate Core Bond fund managed by Vanguard, while NEFRX is a Intermediate Core-Plus Bond fund managed by Natixis. Over the past 10 years, VBMFX returned 1.44%/yr vs 2.15%/yr for NEFRX. Their correlation of 0.83 suggests significant overlap in exposure. VBMFX charges 0.15%/yr vs 0.71%/yr for NEFRX.

Performance

VBMFX vs. NEFRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Total Bond Market Index Fund (VBMFX) and Loomis Sayles Core Plus Bond Fund (NEFRX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VBMFX achieves a 0.17% return, which is significantly higher than NEFRX's 0.05% return. Over the past 10 years, VBMFX has underperformed NEFRX with an annualized return of 1.44%, while NEFRX has yielded a comparatively higher 2.15% annualized return.

VBMFX

• 1D: -0.21%
• 1M: 0.12%
• YTD: 0.17%
• 6M: 0.29%
• 1Y: 4.35%
• 3Y*: 3.86%
• 5Y*: -0.01%
• 10Y*: 1.44%

NEFRX

• 1D: -0.26%
• 1M: 0.01%
• YTD: 0.05%
• 6M: 0.08%
• 1Y: 4.46%
• 3Y*: 3.53%
• 5Y*: -0.07%
• 10Y*: 2.15%

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

VBMFX vs. NEFRX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VBMFX Vanguard Total Bond Market Index Fund	0.17%	7.05%	1.15%	5.62%	-13.25%	-2.04%	7.63%	8.61%	-0.34%	3.45%
NEFRX Loomis Sayles Core Plus Bond Fund	0.05%	7.24%	0.60%	5.91%	-12.94%	-1.68%	10.29%	8.76%	-0.86%	4.92%

Correlation

The correlation between VBMFX and NEFRX is 0.75, 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	0.75
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (10Y) Calculated over the trailing 10-year period	0.86
Correlation (All Time) Calculated using the full available price history since Dec 12, 1986	0.83

The correlation between VBMFX and NEFRX shifts across timeframes, from 0.75 (1 year) to 0.89 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

VBMFX vs. NEFRX — Risk / Return Rank

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

VBMFX

VBMFX Risk / Return Rank: 20
VBMFX Sharpe Ratio Rank: 20
VBMFX Sortino Ratio Rank: 21
VBMFX Omega Ratio Rank: 18
VBMFX Calmar Ratio Rank: 22
VBMFX Martin Ratio Rank: 20

NEFRX

NEFRX Risk / Return Rank: 28
NEFRX Sharpe Ratio Rank: 26
NEFRX Sortino Ratio Rank: 30
NEFRX Omega Ratio Rank: 26
NEFRX Calmar Ratio Rank: 32
NEFRX Martin Ratio Rank: 25

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.

VBMFX vs. NEFRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Total Bond Market Index Fund (VBMFX) and Loomis Sayles Core Plus Bond Fund (NEFRX). 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.

	VBMFX	NEFRX	Difference
Sharpe ratio: Return per unit of total volatility	1.27	1.47	-0.19
Sortino ratio: Return per unit of downside risk	1.91	2.26	-0.35
Omega ratio: Gain probability vs. loss probability	1.23	1.26	-0.04
Calmar ratio: Return relative to maximum drawdown	1.73	2.11	-0.38
Martin ratio: Return relative to average drawdown	5.18	6.06	-0.89
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VBMFX vs. NEFRX - Sharpe Ratio Comparison

The current VBMFX Sharpe Ratio is 1.27, which is comparable to the NEFRX Sharpe Ratio of 1.47. The chart below compares the historical Sharpe Ratios of VBMFX and NEFRX, 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

	VBMFX	NEFRX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.27	1.47	-0.19
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.00	-0.01	+0.01
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.29	0.44	-0.14
Sharpe Ratio (All Time) Calculated using the full available price history	0.96	0.73	+0.23

Drawdowns

VBMFX vs. NEFRX - Drawdown Comparison

The maximum VBMFX drawdown since its inception was -19.08%, smaller than the maximum NEFRX drawdown of -25.45%. Use the drawdown chart below to compare losses from any high point for VBMFX and NEFRX.

Drawdown Indicators

	VBMFX	NEFRX	Difference
Max Drawdown Largest peak-to-trough decline	-19.08%	-25.45%	+6.37%
Max Drawdown (1Y) Largest decline over 1 year	-2.91%	-2.92%	+0.01%
Max Drawdown (3Y) Largest decline over 3 years	-6.02%	-7.95%	+1.93%
Max Drawdown (5Y) Largest decline over 5 years	-18.24%	-18.55%	+0.31%
Max Drawdown (10Y) Largest decline over 10 years	-19.08%	-18.76%	-0.32%
Current Drawdown Current decline from peak	-3.11%	-2.15%	-0.96%
Average Drawdown Average peak-to-trough decline	-2.70%	-3.97%	+1.27%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.97%	1.18%	-0.21%

Volatility

VBMFX vs. NEFRX - Volatility Comparison

Vanguard Total Bond Market Index Fund (VBMFX) and Loomis Sayles Core Plus Bond Fund (NEFRX) have volatilities of 1.32% and 1.36%, 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

	VBMFX	NEFRX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.32%	1.36%	-0.04%
Volatility (6M) Calculated over the trailing 6-month period	2.77%	2.74%	+0.03%
Volatility (1Y) Calculated over the trailing 1-year period	3.95%	4.20%	-0.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.01%	6.23%	-0.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.98%	5.03%	-0.05%

VBMFX vs. NEFRX - Expense Ratio Comparison

VBMFX has a 0.15% expense ratio, which is lower than NEFRX's 0.71% expense ratio.

Dividends

VBMFX vs. NEFRX - Dividend Comparison

VBMFX's dividend yield for the trailing twelve months is around 3.88%, more than NEFRX's 3.62% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NEFRX Loomis Sayles Core Plus Bond Fund	3.62%	3.97%	3.90%	3.58%	3.10%	2.34%	4.04%	2.51%	2.87%	2.68%	3.17%	2.58%
VBMFX Vanguard Total Bond Market Index Fund	3.88%	3.76%	3.57%	2.99%	2.49%	1.72%	2.31%	2.63%	2.47%	2.45%	2.43%	2.71%

Frequently Asked Questions

Can I hold both VBMFX and NEFRX in my portfolio?

VBMFX and NEFRX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VBMFX or NEFRX?

NEFRX has higher volatility (1.36%) compared to VBMFX (1.32%). In terms of maximum drawdown, VBMFX dropped -19.08% vs NEFRX's -25.45%.

Which has better risk-adjusted returns?

NEFRX currently has the higher Sharpe Ratio (1.47 vs 1.27), 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.