BNDW vs. VBTIX

Last updated Jun 4, 2026

BNDW (Vanguard Total World Bond ETF) and VBTIX (Vanguard Total Bond Market Index Fund Institutional Shares) are both funds - BNDW is a Global Bonds fund tracking the Bloomberg Global Aggregate Float Adjusted Composite Index, while VBTIX is a Total Bond Market fund managed by Vanguard. Over the past 5 years, BNDW returned 0.22%/yr vs 0.22%/yr for VBTIX. Their correlation of 0.90 suggests significant overlap in exposure. BNDW charges 0.05%/yr vs 0.04%/yr for VBTIX.

Performance

BNDW vs. VBTIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Total World Bond ETF (BNDW) and Vanguard Total Bond Market Index Fund Institutional Shares (VBTIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with BNDW having a 0.42% return and VBTIX slightly higher at 0.43%.

BNDW

• 1D: -0.26%
• 1M: 0.44%
• YTD: 0.42%
• 6M: 0.18%
• 1Y: 3.51%
• 3Y*: 3.99%
• 5Y*: 0.22%
• 10Y*: —

VBTIX

• 1D: 0.00%
• 1M: 0.55%
• YTD: 0.43%
• 6M: 0.35%
• 1Y: 5.36%
• 3Y*: 4.06%
• 5Y*: 0.22%
• 10Y*: 1.58%

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

BNDW vs. VBTIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BNDW Vanguard Total World Bond ETF	0.42%	5.02%	2.42%	7.18%	-12.88%	-2.10%	6.22%	8.37%	1.21%
VBTIX Vanguard Total Bond Market Index Fund Institutional Shares	0.43%	7.18%	1.27%	5.75%	-13.15%	-1.95%	7.75%	8.74%	1.17%

Correlation

The correlation between BNDW and VBTIX 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	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Sep 7, 2018	0.90

The correlation between BNDW and VBTIX has been stable across timeframes, ranging from 0.89 to 0.93 - a consistent structural relationship.

Return for Risk

BNDW vs. VBTIX — Risk / Return Rank

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

BNDW

BNDW Risk / Return Rank: 27
BNDW Sharpe Ratio Rank: 28
BNDW Sortino Ratio Rank: 27
BNDW Omega Ratio Rank: 26
BNDW Calmar Ratio Rank: 27
BNDW Martin Ratio Rank: 26

VBTIX

VBTIX Risk / Return Rank: 23
VBTIX Sharpe Ratio Rank: 23
VBTIX Sortino Ratio Rank: 24
VBTIX Omega Ratio Rank: 22
VBTIX Calmar Ratio Rank: 25
VBTIX Martin Ratio Rank: 21

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.

BNDW vs. VBTIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Total World Bond ETF (BNDW) and Vanguard Total Bond Market Index Fund Institutional Shares (VBTIX). 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.

	BNDW	VBTIX	Difference
Sharpe ratio Return per unit of total volatility	1.05	1.36	-0.31
Sortino ratio Return per unit of downside risk	1.50	2.05	-0.55
Omega ratio Gain probability vs. loss probability	1.18	1.24	-0.06
Calmar ratio Return relative to maximum drawdown	1.31	1.86	-0.56
Martin ratio Return relative to average drawdown	3.70	5.60	-1.91
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BNDW vs. VBTIX - Sharpe Ratio Comparison

The current BNDW Sharpe Ratio is 1.05, which is comparable to the VBTIX Sharpe Ratio of 1.36. The chart below compares the historical Sharpe Ratios of BNDW and VBTIX, 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

	BNDW	VBTIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.05	1.36	-0.31
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.04	0.04	+0.01
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.32	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.37	0.95	-0.57

Drawdowns

BNDW vs. VBTIX - Drawdown Comparison

The maximum BNDW drawdown since its inception was -17.22%, smaller than the maximum VBTIX drawdown of -18.90%. Use the drawdown chart below to compare losses from any high point for BNDW and VBTIX.

Drawdown Indicators

	BNDW	VBTIX	Difference
Max Drawdown Largest peak-to-trough decline	-17.22%	-18.90%	+1.68%
Max Drawdown (1Y) Largest decline over 1 year	-2.70%	-2.89%	+0.19%
Max Drawdown (3Y) Largest decline over 3 years	-4.27%	-5.99%	+1.72%
Max Drawdown (5Y) Largest decline over 5 years	-16.93%	-18.13%	+1.20%
Max Drawdown (10Y) Largest decline over 10 years	—	-18.90%	—
Current Drawdown Current decline from peak	-1.53%	-2.25%	+0.72%
Average Drawdown Average peak-to-trough decline	-4.98%	-2.32%	-2.66%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.95%	0.96%	-0.01%

Volatility

BNDW vs. VBTIX - Volatility Comparison

The current volatility for Vanguard Total World Bond ETF (BNDW) is 1.31%, while Vanguard Total Bond Market Index Fund Institutional Shares (VBTIX) has a volatility of 1.38%. This indicates that BNDW experiences smaller price fluctuations and is considered to be less risky than VBTIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BNDW	VBTIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.31%	1.38%	-0.07%
Volatility (6M) Calculated over the trailing 6-month period	2.62%	2.80%	-0.18%
Volatility (1Y) Calculated over the trailing 1-year period	3.36%	3.97%	-0.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.21%	6.02%	-0.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.90%	4.98%	-0.08%

BNDW vs. VBTIX - Expense Ratio Comparison

BNDW has a 0.05% expense ratio, which is higher than VBTIX's 0.04% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

BNDW vs. VBTIX - Dividend Comparison

BNDW's dividend yield for the trailing twelve months is around 4.21%, more than VBTIX's 3.99% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BNDW Vanguard Total World Bond ETF	4.21%	4.12%	3.90%	3.73%	2.02%	2.58%	1.56%	3.05%	1.66%	0.00%	0.00%	0.00%
VBTIX Vanguard Total Bond Market Index Fund Institutional Shares	3.99%	3.88%	3.69%	3.12%	2.61%	1.81%	2.41%	2.75%	2.58%	2.56%	2.54%	2.84%

Frequently Asked Questions

Can I hold both BNDW and VBTIX in my portfolio?

BNDW and VBTIX 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, BNDW or VBTIX?

VBTIX has higher volatility (1.38%) compared to BNDW (1.31%). In terms of maximum drawdown, BNDW dropped -17.22% vs VBTIX's -18.90%.

Which has better risk-adjusted returns?

VBTIX currently has the higher Sharpe Ratio (1.36 vs 1.05), 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.