BNDX vs. BGRN
BNDX (Vanguard Total International Bond ETF) and BGRN (iShares USD Green Bond ETF) are both Global Bonds funds - BNDX tracks the Bloomberg Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged) while BGRN tracks the Bloomberg MSCI USD Green Bond Select Index. Both are passively managed. Over the past 5 years, BNDX returned 0.35%/yr vs 0.56%/yr for BGRN. A 0.80 correlation means they provide meaningful diversification when combined. BNDX charges 0.07%/yr vs 0.20%/yr for BGRN.
Performance
BNDX vs. BGRN - Performance Comparison
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Returns By Period
In the year-to-date period, BNDX achieves a 0.64% return, which is significantly higher than BGRN's 0.56% return.
BNDX
- 1D
- 0.10%
- 1M
- 0.63%
- YTD
- 0.64%
- 6M
- 0.44%
- 1Y
- 1.86%
- 3Y*
- 4.14%
- 5Y*
- 0.35%
- 10Y*
- 1.71%
BGRN
- 1D
- 0.13%
- 1M
- 0.28%
- YTD
- 0.56%
- 6M
- 0.69%
- 1Y
- 4.85%
- 3Y*
- 4.82%
- 5Y*
- 0.56%
- 10Y*
- —
BNDX vs. BGRN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
BNDX Vanguard Total International Bond ETF | 0.64% | 2.86% | 3.57% | 8.77% | -12.76% | -2.29% | 4.65% | 7.87% | 1.25% |
BGRN iShares USD Green Bond ETF | 0.56% | 7.27% | 2.77% | 6.50% | -13.06% | -2.80% | 6.86% | 9.70% | 1.14% |
Correlation
The correlation between BNDX and BGRN is 0.73, 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 | 0.73 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.77 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.81 |
Correlation (All Time) Calculated using the full available price history since Nov 28, 2018 | 0.80 |
The correlation between BNDX and BGRN has been stable across timeframes, ranging from 0.73 to 0.81 - a consistent structural relationship.
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Return for Risk
BNDX vs. BGRN — Risk / Return Rank
BNDX
BGRN
BNDX vs. BGRN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Total International Bond ETF (BNDX) and iShares USD Green Bond ETF (BGRN). 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.
| BNDX | BGRN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.11 | ||
| Sortino ratioReturn per unit of downside risk | -1.73 | ||
| Omega ratioGain probability vs. loss probability | 1.10 | 1.30 | -0.20 |
| Calmar ratioReturn relative to maximum drawdown | 0.64 | 2.19 | -1.55 |
| Martin ratioReturn relative to average drawdown | 1.82 | 7.33 | -5.51 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| BNDX | BGRN | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.55 | 1.66 | -1.11 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.07 | 0.10 | -0.03 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.42 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.61 | 0.45 | +0.15 |
Drawdowns
BNDX vs. BGRN - Drawdown Comparison
The maximum BNDX drawdown since its inception was -16.23%, smaller than the maximum BGRN drawdown of -19.16%. Use the drawdown chart below to compare losses from any high point for BNDX and BGRN.
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Drawdown Indicators
| BNDX | BGRN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.23% | -19.16% | +2.93% |
Max Drawdown (1Y)Largest decline over 1 year | -2.93% | -2.23% | -0.70% |
Max Drawdown (3Y)Largest decline over 3 years | -2.93% | -4.55% | +1.62% |
Max Drawdown (5Y)Largest decline over 5 years | -15.86% | -18.73% | +2.87% |
Max Drawdown (10Y)Largest decline over 10 years | -16.23% | — | — |
Current DrawdownCurrent decline from peak | -1.39% | -0.71% | -0.68% |
Average DrawdownAverage peak-to-trough decline | -3.08% | -5.79% | +2.71% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.03% | 0.66% | +0.37% |
Volatility
BNDX vs. BGRN - Volatility Comparison
Vanguard Total International Bond ETF (BNDX) has a higher volatility of 1.57% compared to iShares USD Green Bond ETF (BGRN) at 1.05%. This indicates that BNDX's price experiences larger fluctuations and is considered to be riskier than BGRN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BNDX | BGRN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.57% | 1.05% | +0.52% |
Volatility (6M)Calculated over the trailing 6-month period | 2.91% | 2.25% | +0.66% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.43% | 2.97% | +0.46% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.88% | 5.46% | -0.58% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.09% | 5.00% | -0.91% |
BNDX vs. BGRN - Expense Ratio Comparison
BNDX has a 0.07% expense ratio, which is lower than BGRN'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
BNDX vs. BGRN - Dividend Comparison
BNDX's dividend yield for the trailing twelve months is around 4.49%, more than BGRN's 4.28% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BGRN iShares USD Green Bond ETF | 4.28% | 4.21% | 4.07% | 3.52% | 2.66% | 0.78% | 1.82% | 3.66% | 0.21% | 0.00% | 0.00% | 0.00% |
BNDX Vanguard Total International Bond ETF | 4.49% | 4.39% | 4.18% | 4.42% | 1.51% | 3.74% | 1.11% | 3.40% | 3.01% | 2.23% | 1.89% | 1.63% |
Frequently Asked Questions
BNDX and BGRN have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BNDX has higher volatility (1.57%) compared to BGRN (1.05%). In terms of maximum drawdown, BNDX dropped -16.23% vs BGRN's -19.16%.
On 5-year performance, BGRN leads with 0.56% vs 0.35% for BNDX. On fees, BNDX is cheaper at 0.07% per year. On volatility, BGRN has been the lower-risk option at 1.05%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, BGRN has performed better with a 0.56% return vs 0.35%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
BNDX is cheaper with a 0.07% expense ratio, compared with 0.20% for BGRN.
BNDX has the higher dividend yield at 4.49%, compared with 4.28% for BGRN.
BNDX tracks Bloomberg Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged), while BGRN tracks Bloomberg MSCI USD Green Bond Select Index. They also come from different issuers: Vanguard and iShares. Their fees differ too: 0.07% for BNDX and 0.20% for BGRN.
BGRN currently has the higher Sharpe Ratio (1.66 vs 0.55), 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.
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