GRNBvsISTBETF Comparison
VS
VanEck Green Bond ETF (GRNB) belongs to the Green Bonds segment. iShares Core 1-5 Year USD Bond ETF (ISTB) is part of the US Aggregate Bonds segment. GRNB's top 3 sector exposures are Finance, Utilities and Sovereign. In contrast, ISTB's top sector exposures are Sovereign, Finance and Industrials. GRNB is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.06% for ISTB. GRNB is down -0.66% year-to-date (YTD) with +$41M in YTD flows. ISTB performs better with 0.36% YTD performance, and +$737M in YTD flows. Run a side-by-side ETF comparison of GRNB and ISTB below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
Find out how industry players manage ETF portfolios. Discover our library of Model portfolios
GRNB vs ISTB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | GRNB ISTB | -0.17%+0.23% | -1.19%-0.43% | -0.66%+0.36% | -0.31%+0.98% | +17.26%+15.60% | +3.90%+10.10% |
| Flows | GRNB ISTB | +$8M+$203M | +$16M+$298M | +$41M+$737M | +$53M+$869M | +$113M+$1.21B | +$112M-$425M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | GRNB ISTB | +2.65%+1.91% | +2.38%+1.77% | +3.10%+2.15% | +3.89%+2.68% |
| Max drawdown | GRNB ISTB | -2.32%-1.51% | -2.61%-1.51% | -2.67%-1.51% | -15.92%-8.72% |
| Max drawdown duration | GRNB ISTB | 52d52d | 229d52d | 149d52d | 1311d968d |
Trading data
GRNB | ISTB | |
Last sale 10/16/2026 at 1:30 PM | $23.38 | $47.35 |
| Previous close 10/15/2026 | $23.40 | $47.32 |
| Consolidated volume 10/15/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
Create an account to view replication metrics
Join for free
GRNB | ISTB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
Advertisement
Main metrics
Last update 10/16/2026 at 1:30 PM
Live
Closed
GRNB | ISTB | |
|---|---|---|
| Last price | $23.38 | $47.35 |
| 1D performance | -0.11% | +0.06% |
| AuM | $194.95 M | $5.30 B |
| E/R | 0.2% | 0.06% |
Characteristics
GRNB | ISTB | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | VanEck | iShares |
| Benchmark | S&P Green Bond U.S. Dollar Select Index | Bloomberg U.S. Universal 1-5 Year Index |
| N° of holdings | 445 | 6956 |
| Asset class | Fixed Income | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | March 3, 2017 | October 18, 2012 |
| ESG | Yes | No |
Advertisement
Exposure
Countries
GRNB
USA
31%
Other
69%
ISTB
USA
77.86%
Other
22.14%
Sectors
GRNB
Finance
34.84%
Utilities
26.74%
Sovereign
7.67%
Other
30.76%
ISTB
Sovereign
54.43%
Finance
18.71%
Other
26.86%
Advertisement
Diversification
GRNB
Total weight of top 15 holdings out of 15
11.36%
ISTB
Total weight of top 15 holdings out of 15
12.68%
Top 15 holdings
Data as of August 31, 2026
GRNB
European Investment Bank (EIB), 3.75% 14feb2033, USD
1.51%
European Investment Bank (EIB), 4.375% 10oct2031, USD
1.16%
WULF Compute, 7.75% 15oct2030, USD
1.04%
KFW, 1% 1oct2026, USD
0.92%
Turkey, 9.125% 13jul2030, USD
0.82%
Ford Motor, 3.25% 12feb2032, USD
0.66%
Israel, 4.5% 17jan2033, USD
0.64%
KFW, 1.75% 14sep2029, USD
0.62%
Ford Motor, 6.1% 19aug2032, USD
0.59%
JP Morgan, 6.07% 22oct2027, USD
0.59%
Public Investment Fund, 5.25% 13oct2032, USD
0.58%
KFW, 0.75% 30sep2030, USD
0.58%
KFW, 4.375% 28feb2034, USD
0.58%
Public Investment Fund, 4.875% 14feb2035, USD
0.56%
Chile, 3.5% 25jan2050, USD
0.52%
ISTB
USA, Notes 3.875% 15jun2028, USD (AP-2028)
1.09%
USA, Notes 4.125% 30jun2031, USD (AA-2031)
1.06%
BlackRock Cash Funds - Institutional
1.06%
USA, Notes 4% 28feb2030, USD (H-2030)
0.91%
USA, Notes 3.625% 31oct2030, USD (AF-2030)
0.89%
USA, Notes 4.375% 31jul2031, USD (AB-2031)
0.87%
USA, Notes 3.5% 30nov2030, USD (AG-2030)
0.84%
USA, Notes 3.75% 31jan2031, USD (U-2031)
0.81%
USA, Notes 3.625% 30sep2030, USD (AD-2030)
0.81%
USA, Notes 3.625% 31aug2030, USD (AC-2030)
0.79%
USA, Notes 4% 31may2030, USD (Z-2030)
0.77%
USA, Notes 3.875% 15jul2028, USD (AQ-2028)
0.75%
USA, Notes 4% 31jul2029, USD (AB-2029)
0.74%
USA, Notes 4.5% 31may2029, USD (Z-2029)
0.66%
USA, Notes 4.25% 30jun2029, USD (AA-2029)
0.65%
Frequently asked questions about GRNB and ISTB
How have the GRNB and ISTB ETFs performed in 2026?
As of October 16, 2026, GRNB is down -0.66% year-to-date (YTD), while ISTB has returned 0.36%. That puts ISTB better performer ahead so far this year.
Which ETF is attracting more investor money: GRNB or ISTB?
Year-to-date, the GRNB ETF saw +$41M in flows, compared to +$737M for ISTB.
Which ETF is more volatile: GRNB or ISTB?
Over the past year, GRNB had a volatility of 2.38%, while ISTB experienced 1.77%.
Which ETF is bigger: GRNB or ISTB?
As of October 16, 2026, GRNB holds $194.95 M in assets under management (AUM), while ISTB manages $5.30 B.
What sectors do the GRNB and ISTB ETFs invest in?
GRNB leans toward sectors like Finance, Utilities and Sovereign. Meanwhile, ISTB focuses on Sovereign and Finance.
What are the top holdings of the GRNB ETF and ISTB ETF?
GRNB top holdings include European Investment Bank (EIB), 3.75% 14feb2033, USD, European Investment Bank (EIB), 4.375% 10oct2031, USD and WULF Compute, 7.75% 15oct2030, USD. ISTB holds in its top three: USA, Notes 3.875% 15jun2028, USD (AP-2028), USA, Notes 4.125% 30jun2031, USD (AA-2031) and BlackRock Cash Funds - Institutional.
Which ETF is more diversified: GRNB or ISTB?
GRNB holds 468 securities with 11.36% of its assets in the top 15. ISTB has 7351 securities and a top 15 weight of 12.68%.
Advertisement
Latest news about GRNB & ISTB
Advertisement
