BIV vs. VWOB

Last updated Jun 9, 2026

BIV (Vanguard Intermediate-Term Bond Index ETF) and VWOB (Vanguard Emerging Markets Government Bond ETF) are both exchange-traded funds - BIV is a Intermediate Core Bond fund tracking the Bloomberg U.S. 5–10 Year Government/Credit Float Adjusted Bond Index, while VWOB is a Emerging Markets Bonds fund tracking the Bloomberg USD Emerging Markets Government RIC Capped Index. Both are passively managed. Over the past 10 years, BIV returned 1.83%/yr vs 3.44%/yr for VWOB. A 0.52 correlation means they provide meaningful diversification when combined. BIV charges 0.03%/yr vs 0.15%/yr for VWOB.

Performance

BIV vs. VWOB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Intermediate-Term Bond Index ETF (BIV) and Vanguard Emerging Markets Government Bond ETF (VWOB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BIV achieves a -0.67% return, which is significantly lower than VWOB's 0.95% return. Over the past 10 years, BIV has underperformed VWOB with an annualized return of 1.83%, while VWOB has yielded a comparatively higher 3.44% annualized return.

BIV

• 1D: -0.05%
• 1M: -0.94%
• YTD: -0.67%
• 6M: -0.33%
• 1Y: 4.70%
• 3Y*: 4.27%
• 5Y*: 0.08%
• 10Y*: 1.83%

VWOB

• 1D: -0.18%
• 1M: -0.48%
• YTD: 0.95%
• 6M: 1.64%
• 1Y: 10.16%
• 3Y*: 9.06%
• 5Y*: 1.85%
• 10Y*: 3.44%

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

BIV vs. VWOB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BIV Vanguard Intermediate-Term Bond Index ETF	-0.67%	8.52%	1.57%	6.07%	-13.21%	-2.40%	9.67%	10.34%	-0.19%	3.65%
VWOB Vanguard Emerging Markets Government Bond ETF	0.95%	13.49%	5.20%	10.68%	-17.39%	-1.80%	5.65%	14.46%	-2.92%	8.41%

Correlation

The correlation between BIV and VWOB 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	0.79
Correlation (5Y) Calculated over the trailing 5-year period	0.71
Correlation (10Y) Calculated over the trailing 10-year period	0.59
Correlation (All Time) Calculated using the full available price history since Jun 5, 2013	0.52

Over the past year, BIV and VWOB have become more correlated (0.78) than their long-term average of 0.52, meaning their price movements have been converging.

Return for Risk

BIV vs. VWOB — Risk / Return Rank

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

BIV

BIV Risk / Return Rank: 34
BIV Sharpe Ratio Rank: 36
BIV Sortino Ratio Rank: 37
BIV Omega Ratio Rank: 33
BIV Calmar Ratio Rank: 33
BIV Martin Ratio Rank: 32

VWOB

VWOB Risk / Return Rank: 63
VWOB Sharpe Ratio Rank: 66
VWOB Sortino Ratio Rank: 70
VWOB Omega Ratio Rank: 71
VWOB Calmar Ratio Rank: 51
VWOB Martin Ratio Rank: 59

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.

BIV vs. VWOB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Intermediate-Term Bond Index ETF (BIV) and Vanguard Emerging Markets Government Bond ETF (VWOB). 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.

	BIV	VWOB	Difference
Sharpe ratio: Return per unit of total volatility	1.18	1.97	-0.79
Sortino ratio: Return per unit of downside risk	1.76	2.85	-1.09
Omega ratio: Gain probability vs. loss probability	1.21	1.38	-0.17
Calmar ratio: Return relative to maximum drawdown	1.49	2.28	-0.79
Martin ratio: Return relative to average drawdown	4.40	9.60	-5.20
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BIV vs. VWOB - Sharpe Ratio Comparison

The current BIV Sharpe Ratio is 1.18, which is lower than the VWOB Sharpe Ratio of 1.97. The chart below compares the historical Sharpe Ratios of BIV and VWOB, 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

	BIV	VWOB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.18	1.97	-0.79
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.01	0.20	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.33	0.37	-0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.64	0.41	+0.23

Drawdowns

BIV vs. VWOB - Drawdown Comparison

The maximum BIV drawdown since its inception was -18.95%, smaller than the maximum VWOB drawdown of -26.98%. Use the drawdown chart below to compare losses from any high point for BIV and VWOB.

Drawdown Indicators

	BIV	VWOB	Difference
Max Drawdown Largest peak-to-trough decline	-18.95%	-26.98%	+8.03%
Max Drawdown (1Y) Largest decline over 1 year	-3.18%	-4.48%	+1.30%
Max Drawdown (3Y) Largest decline over 3 years	-6.07%	-7.71%	+1.64%
Max Drawdown (5Y) Largest decline over 5 years	-18.74%	-26.98%	+8.24%
Max Drawdown (10Y) Largest decline over 10 years	-18.95%	-26.98%	+8.03%
Current Drawdown Current decline from peak	-2.46%	-0.94%	-1.52%
Average Drawdown Average peak-to-trough decline	-3.39%	-4.78%	+1.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.07%	1.06%	+0.01%

Volatility

BIV vs. VWOB - Volatility Comparison

The current volatility for Vanguard Intermediate-Term Bond Index ETF (BIV) is 1.35%, while Vanguard Emerging Markets Government Bond ETF (VWOB) has a volatility of 1.65%. This indicates that BIV experiences smaller price fluctuations and is considered to be less risky than VWOB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BIV	VWOB	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.35%	1.65%	-0.30%
Volatility (6M) Calculated over the trailing 6-month period	2.93%	4.20%	-1.27%
Volatility (1Y) Calculated over the trailing 1-year period	4.00%	5.18%	-1.18%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.40%	9.18%	-2.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.51%	9.34%	-3.83%

BIV vs. VWOB - Expense Ratio Comparison

BIV has a 0.03% expense ratio, which is lower than VWOB's 0.15% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

BIV vs. VWOB - Dividend Comparison

BIV's dividend yield for the trailing twelve months is around 4.24%, less than VWOB's 5.88% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BIV Vanguard Intermediate-Term Bond Index ETF	4.24%	4.01%	3.79%	3.09%	2.41%	3.42%	2.95%	2.75%	2.88%	2.69%	3.01%	3.02%
VWOB Vanguard Emerging Markets Government Bond ETF	5.88%	5.92%	6.08%	5.50%	5.30%	4.04%	4.18%	4.58%	4.52%	4.61%	4.71%	4.93%

Frequently Asked Questions

Can I hold both BIV and VWOB in my portfolio?

BIV and VWOB 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, BIV or VWOB?

VWOB has higher volatility (1.65%) compared to BIV (1.35%). In terms of maximum drawdown, BIV dropped -18.95% vs VWOB's -26.98%.

Which ETF is better, BIV or VWOB?

On 10-year performance, VWOB leads with 3.44% vs 1.83% for BIV. On fees, BIV is cheaper at 0.03% per year. On volatility, BIV has been the lower-risk option at 1.35%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BIV or VWOB?

Over the 10-year period, VWOB has performed better with a 3.44% return vs 1.83%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BIV or VWOB?

BIV is cheaper with a 0.03% expense ratio, compared with 0.15% for VWOB.

Which ETF pays a higher dividend yield, BIV or VWOB?

VWOB has the higher dividend yield at 5.88%, compared with 4.24% for BIV.

What is the main difference between BIV and VWOB?

BIV is categorized as Intermediate Core Bond, while VWOB is Emerging Markets Bonds. BIV tracks Bloomberg U.S. 5–10 Year Government/Credit Float Adjusted Bond Index, while VWOB tracks Bloomberg USD Emerging Markets Government RIC Capped Index. Their fees differ too: 0.03% for BIV and 0.15% for VWOB.

Which has better risk-adjusted returns?

VWOB currently has the higher Sharpe Ratio (1.97 vs 1.18), 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.