BWZ vs. IBND

Last updated Jun 3, 2026

BWZ (SPDR Bloomberg Barclays Short Term International Treasury Bond ETF) and IBND (SPDR Bloomberg Barclays International Corporate Bond ETF) are both exchange-traded funds - BWZ is a International Government Bonds fund tracking the Bloomberg Global Treasury (1-3 Y) Customized, while IBND is a Corporate Bonds fund tracking the Bloomberg Global Aggregate x USD >$1B: Corporate Bond. Both are passively managed. Over the past 10 years, BWZ returned -0.44%/yr vs 0.69%/yr for IBND. A 0.74 correlation means they provide meaningful diversification when combined. BWZ charges 0.35%/yr vs 0.50%/yr for IBND.

Performance

BWZ vs. IBND - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR Bloomberg Barclays Short Term International Treasury Bond ETF (BWZ) and SPDR Bloomberg Barclays International Corporate Bond ETF (IBND). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BWZ achieves a -0.10% return, which is significantly higher than IBND's -0.64% return. Over the past 10 years, BWZ has underperformed IBND with an annualized return of -0.44%, while IBND has yielded a comparatively higher 0.69% annualized return.

BWZ

• 1D: 0.18%
• 1M: -0.63%
• YTD: -0.10%
• 6M: 1.00%
• 1Y: -0.05%
• 3Y*: 2.76%
• 5Y*: -1.78%
• 10Y*: -0.44%

IBND

• 1D: 0.06%
• 1M: -0.05%
• YTD: -0.64%
• 6M: 0.40%
• 1Y: 2.89%
• 3Y*: 6.85%
• 5Y*: -1.32%
• 10Y*: 0.69%

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

BWZ vs. IBND - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BWZ SPDR Bloomberg Barclays Short Term International Treasury Bond ETF	-0.10%	10.47%	-5.31%	2.97%	-10.56%	-6.85%	6.47%	0.99%	-3.36%	10.18%
IBND SPDR Bloomberg Barclays International Corporate Bond ETF	-0.64%	16.17%	-2.81%	10.38%	-19.44%	-8.40%	11.50%	4.41%	-6.15%	14.84%

Correlation

The correlation between BWZ and IBND is 0.81, 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	0.81
Correlation (3Y) Calculated over the trailing 3-year period	0.75
Correlation (5Y) Calculated over the trailing 5-year period	0.78
Correlation (10Y) Calculated over the trailing 10-year period	0.75
Correlation (All Time) Calculated using the full available price history since May 21, 2010	0.74

The correlation between BWZ and IBND has been stable across timeframes, ranging from 0.74 to 0.81 - a consistent structural relationship.

Return for Risk

BWZ vs. IBND — Risk / Return Rank

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

BWZ

BWZ Risk / Return Rank: 9
BWZ Sharpe Ratio Rank: 9
BWZ Sortino Ratio Rank: 8
BWZ Omega Ratio Rank: 8
BWZ Calmar Ratio Rank: 10
BWZ Martin Ratio Rank: 10

IBND

IBND Risk / Return Rank: 14
IBND Sharpe Ratio Rank: 14
IBND Sortino Ratio Rank: 13
IBND Omega Ratio Rank: 13
IBND Calmar Ratio Rank: 15
IBND 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.

BWZ vs. IBND - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR Bloomberg Barclays Short Term International Treasury Bond ETF (BWZ) and SPDR Bloomberg Barclays International Corporate Bond ETF (IBND). 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.

	BWZ	IBND	Difference
Sharpe ratio Return per unit of total volatility	-0.01	0.36	-0.37
Sortino ratio Return per unit of downside risk	0.04	0.58	-0.54
Omega ratio Gain probability vs. loss probability	1.00	1.07	-0.06
Calmar ratio Return relative to maximum drawdown	0.13	0.51	-0.38
Martin ratio Return relative to average drawdown	0.31	1.41	-1.11
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BWZ vs. IBND - Sharpe Ratio Comparison

The current BWZ Sharpe Ratio is -0.01, which is lower than the IBND Sharpe Ratio of 0.36. The chart below compares the historical Sharpe Ratios of BWZ and IBND, 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

	BWZ	IBND	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.01	0.36	-0.37
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.24	-0.14	-0.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.06	0.08	-0.14
Sharpe Ratio (All Time) Calculated using the full available price history	-0.02	0.16	-0.18

Drawdowns

BWZ vs. IBND - Drawdown Comparison

The maximum BWZ drawdown since its inception was -34.23%, roughly equal to the maximum IBND drawdown of -35.62%. Use the drawdown chart below to compare losses from any high point for BWZ and IBND.

Drawdown Indicators

	BWZ	IBND	Difference
Max Drawdown Largest peak-to-trough decline	-34.23%	-35.62%	+1.39%
Max Drawdown (1Y) Largest decline over 1 year	-5.15%	-6.75%	+1.60%
Max Drawdown (3Y) Largest decline over 3 years	-8.60%	-9.18%	+0.58%
Max Drawdown (5Y) Largest decline over 5 years	-23.58%	-34.32%	+10.74%
Max Drawdown (10Y) Largest decline over 10 years	-24.90%	-35.62%	+10.72%
Current Drawdown Current decline from peak	-21.99%	-9.05%	-12.94%
Average Drawdown Average peak-to-trough decline	-16.10%	-10.64%	-5.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.24%	2.45%	-0.21%

Volatility

BWZ vs. IBND - Volatility Comparison

The current volatility for SPDR Bloomberg Barclays Short Term International Treasury Bond ETF (BWZ) is 1.79%, while SPDR Bloomberg Barclays International Corporate Bond ETF (IBND) has a volatility of 2.05%. This indicates that BWZ experiences smaller price fluctuations and is considered to be less risky than IBND based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BWZ	IBND	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.79%	2.05%	-0.26%
Volatility (6M) Calculated over the trailing 6-month period	4.95%	6.13%	-1.18%
Volatility (1Y) Calculated over the trailing 1-year period	6.95%	7.98%	-1.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.60%	9.75%	-2.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.95%	8.94%	-1.99%

BWZ vs. IBND - Expense Ratio Comparison

BWZ has a 0.35% expense ratio, which is lower than IBND's 0.50% expense ratio.

Dividends

BWZ vs. IBND - Dividend Comparison

BWZ's dividend yield for the trailing twelve months is around 2.08%, less than IBND's 2.73% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BWZ SPDR Bloomberg Barclays Short Term International Treasury Bond ETF	2.08%	2.05%	2.47%	1.63%	0.44%	0.60%	0.13%	0.43%	1.10%	0.40%	0.13%	0.06%
IBND SPDR Bloomberg Barclays International Corporate Bond ETF	2.73%	2.49%	2.61%	2.08%	0.54%	0.38%	0.45%	0.67%	0.71%	0.34%	0.01%	0.01%

Frequently Asked Questions

Can I hold both BWZ and IBND in my portfolio?

BWZ and IBND have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BWZ or IBND?

IBND has higher volatility (2.05%) compared to BWZ (1.79%). In terms of maximum drawdown, BWZ dropped -34.23% vs IBND's -35.62%.

Which ETF is better, BWZ or IBND?

On 10-year performance, IBND leads with 0.69% vs -0.44% for BWZ. On fees, BWZ is cheaper at 0.35% per year. On volatility, BWZ has been the lower-risk option at 1.79%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BWZ or IBND?

Over the 10-year period, IBND has performed better with a 0.69% return vs -0.44%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BWZ or IBND?

BWZ is cheaper with a 0.35% expense ratio, compared with 0.50% for IBND.

Which ETF pays a higher dividend yield, BWZ or IBND?

IBND has the higher dividend yield at 2.73%, compared with 2.08% for BWZ.

What is the main difference between BWZ and IBND?

BWZ is categorized as International Government Bonds, while IBND is Corporate Bonds. BWZ tracks Bloomberg Global Treasury (1-3 Y) Customized, while IBND tracks Bloomberg Global Aggregate x USD >$1B: Corporate Bond. Their fees differ too: 0.35% for BWZ and 0.50% for IBND.

Which has better risk-adjusted returns?

IBND currently has the higher Sharpe Ratio (0.36 vs -0.01), 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.