IBDU vs. VWOB

Last updated Jun 3, 2026

IBDU (iShares iBonds Dec 2029 Term Corporate ETF) and VWOB (Vanguard Emerging Markets Government Bond ETF) are both exchange-traded funds - IBDU is a Corporate Bonds fund tracking the Bloomberg December 2029 Maturity Corporate Index, while VWOB is a Emerging Markets Bonds fund tracking the Barclays USD Emerging Markets Government RIC Capped Index. Both are passively managed. Over the past 5 years, IBDU returned 1.41%/yr vs 2.27%/yr for VWOB. A 0.65 correlation means they provide meaningful diversification when combined. IBDU charges 0.10%/yr vs 0.20%/yr for VWOB.

Performance

IBDU vs. VWOB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds Dec 2029 Term Corporate ETF (IBDU) 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, IBDU achieves a 0.67% return, which is significantly lower than VWOB's 1.86% return.

IBDU

• 1D: 0.00%
• 1M: 0.12%
• YTD: 0.67%
• 6M: 1.10%
• 1Y: 4.86%
• 3Y*: 5.78%
• 5Y*: 1.41%
• 10Y*: —

VWOB

• 1D: 0.25%
• 1M: 0.97%
• YTD: 1.86%
• 6M: 2.07%
• 1Y: 11.50%
• 3Y*: 9.51%
• 5Y*: 2.27%
• 10Y*: 3.57%

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

IBDU vs. VWOB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
IBDU iShares iBonds Dec 2029 Term Corporate ETF	0.67%	7.59%	3.62%	8.67%	-13.04%	-2.05%	10.38%	2.22%
VWOB Vanguard Emerging Markets Government Bond ETF	1.86%	13.49%	5.20%	10.68%	-17.39%	-1.80%	5.65%	2.47%

Correlation

The correlation between IBDU and VWOB is 0.69, 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	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.76
Correlation (5Y) Calculated over the trailing 5-year period	0.71
Correlation (All Time) Calculated using the full available price history since Sep 20, 2019	0.65

The correlation between IBDU and VWOB shifts across timeframes, from 0.65 (all time) to 0.76 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

IBDU vs. VWOB — Risk / Return Rank

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

IBDU

IBDU Risk / Return Rank: 66
IBDU Sharpe Ratio Rank: 64
IBDU Sortino Ratio Rank: 73
IBDU Omega Ratio Rank: 68
IBDU Calmar Ratio Rank: 60
IBDU Martin Ratio Rank: 63

VWOB

VWOB Risk / Return Rank: 64
VWOB Sharpe Ratio Rank: 67
VWOB Sortino Ratio Rank: 71
VWOB Omega Ratio Rank: 72
VWOB Calmar Ratio Rank: 51
VWOB Martin Ratio Rank: 60

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.

IBDU vs. VWOB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2029 Term Corporate ETF (IBDU) 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.

	IBDU	VWOB	Difference
Sharpe ratio Return per unit of total volatility	2.16	2.25	-0.09
Sortino ratio Return per unit of downside risk	3.36	3.27	+0.10
Omega ratio Gain probability vs. loss probability	1.42	1.44	-0.02
Calmar ratio Return relative to maximum drawdown	3.04	2.56	+0.48
Martin ratio Return relative to average drawdown	11.47	10.85	+0.61
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IBDU vs. VWOB - Sharpe Ratio Comparison

The current IBDU Sharpe Ratio is 2.16, which is comparable to the VWOB Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of IBDU 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

	IBDU	VWOB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.16	2.25	-0.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.25	0.25	0.00
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.38	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.33	0.42	-0.09

Drawdowns

IBDU vs. VWOB - Drawdown Comparison

The maximum IBDU drawdown since its inception was -19.44%, smaller than the maximum VWOB drawdown of -26.98%. Use the drawdown chart below to compare losses from any high point for IBDU and VWOB.

Drawdown Indicators

	IBDU	VWOB	Difference
Max Drawdown Largest peak-to-trough decline	-19.44%	-26.98%	+7.54%
Max Drawdown (1Y) Largest decline over 1 year	-1.59%	-4.48%	+2.89%
Max Drawdown (3Y) Largest decline over 3 years	-4.14%	-7.71%	+3.57%
Max Drawdown (5Y) Largest decline over 5 years	-19.44%	-26.98%	+7.54%
Max Drawdown (10Y) Largest decline over 10 years	—	-26.98%	—
Current Drawdown Current decline from peak	-0.41%	-0.04%	-0.37%
Average Drawdown Average peak-to-trough decline	-5.41%	-4.79%	-0.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.42%	1.06%	-0.64%

Volatility

IBDU vs. VWOB - Volatility Comparison

The current volatility for iShares iBonds Dec 2029 Term Corporate ETF (IBDU) is 0.58%, while Vanguard Emerging Markets Government Bond ETF (VWOB) has a volatility of 1.76%. This indicates that IBDU 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

	IBDU	VWOB	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.58%	1.76%	-1.18%
Volatility (6M) Calculated over the trailing 6-month period	1.50%	4.17%	-2.67%
Volatility (1Y) Calculated over the trailing 1-year period	2.26%	5.14%	-2.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.72%	9.18%	-3.46%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.32%	9.34%	-2.02%

IBDU vs. VWOB - Expense Ratio Comparison

IBDU has a 0.10% expense ratio, which is lower than VWOB's 0.20% 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

IBDU vs. VWOB - Dividend Comparison

IBDU's dividend yield for the trailing twelve months is around 4.66%, less than VWOB's 5.83% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IBDU iShares iBonds Dec 2029 Term Corporate ETF	4.66%	4.67%	4.75%	4.21%	3.34%	2.29%	2.42%	0.74%	0.00%	0.00%	0.00%	0.00%
VWOB Vanguard Emerging Markets Government Bond ETF	5.83%	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 IBDU and VWOB in my portfolio?

IBDU and VWOB have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IBDU or VWOB?

VWOB has higher volatility (1.76%) compared to IBDU (0.58%). In terms of maximum drawdown, IBDU dropped -19.44% vs VWOB's -26.98%.

Which ETF is better, IBDU or VWOB?

On 5-year performance, VWOB leads with 2.27% vs 1.41% for IBDU. On fees, IBDU is cheaper at 0.10% per year. On volatility, IBDU has been the lower-risk option at 0.58%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IBDU or VWOB?

Over the 5-year period, VWOB has performed better with a 2.27% return vs 1.41%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IBDU or VWOB?

IBDU is cheaper with a 0.10% expense ratio, compared with 0.20% for VWOB.

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

VWOB has the higher dividend yield at 5.83%, compared with 4.66% for IBDU.

What is the main difference between IBDU and VWOB?

IBDU is categorized as Corporate Bonds, while VWOB is Emerging Markets Bonds. IBDU tracks Bloomberg December 2029 Maturity Corporate Index, while VWOB tracks Barclays USD Emerging Markets Government RIC Capped Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.10% for IBDU and 0.20% for VWOB.

Which has better risk-adjusted returns?

VWOB currently has the higher Sharpe Ratio (2.25 vs 2.16), 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.