GRNB ranks 2nd and SIO 19th of 28 funds in the Global Aggregate Bond (Unhedged) Category.
GRNB vs SIO
GRNB −0.30pt a year
0.20%0.50%
SIO 1.3×the volume
34.2K45.3K
SIO +2.1pt
+5.8%+7.9%
GRNB vs SIO Performance
+0.2%+1.1%
- GRNB 0.20%, better
- SIO 0.50%
- GRNB $196M
- SIO $287M
- GRNB +0.2%
- SIO +1.1%, better
- GRNB 4.52%
- SIO 7.01%, better
- GRNB 475
- SIO 242
- GRNB 34.2K sh
- SIO 45.3K sh, better
- GRNB $23.46
- SIO $24.84
ETF.net Grade
| Pillar | GRNB | SIO |
|---|---|---|
| Cost | A95Higher | D39 |
| Mission | A93Higher | A70 |
| Risk | B65Higher | B60 |
| Tradability | D26Higher | F21 |
| Holdings | A100Higher | C47 |
| Durability | C48Higher | C44 |
Rank among Global Aggregate Bond (Unhedged) funds
Same Category. GRNB and SIO are both graded against the same 28 Global Aggregate Bond (Unhedged) funds, so their Grades compare head to head.
Our read on each fund
GRNBA
SIOC
In short
GRNB Its peer group is stacked with total-bond-market giants. GRNB goes narrow instead: only dollar-denominated green bonds funding environmental projects, issued worldwide by governments, supranationals and companies. A 2017-vintage specialist at 0.20%.
SIO A go-anywhere income fund that leans into structured credit (mortgage, asset-backed and CLO paper) instead of guessing on rates, with at least half the book kept in investment-grade debt. Income lands monthly.
Stated mandate
GRNB The fund seeks to track the S&P Green Bond U.S. Dollar Select Index before fees and expenses. The index covers U.S.-dollar-denominated green bonds financing environmentally friendly projects and issued globally by supranational, government, and corporate entities.
SIO The Fund seeks a high level of current income while emphasizing capital preservation. It invests primarily in income-producing fixed-income securities through an actively managed, yield-oriented strategy.
Why people hold it
Worth knowing
GRNB vs SIO Holdings
How we measure overlap
Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.
GRNB vs SIO Cost
Overpaying SIO vs GRNB
$5,824
On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.
GRNB 0.20%
$4,155
SIO 0.50%
$9,979
Cost over time
Year by year
| Year | GRNB | SIO | Overpaying |
|---|---|---|---|
| 10 | $365 | $900 | $535 |
| 20 | $1,421 | $3,460 | $2,039 |
| 30 | $4,155 | $9,979 | $5,824 |
- 0.20%GRNB, cheaper
- 0.50%SIO
- Middle half of Global Aggregate Bond (Unhedged) funds
- Median 0.40%
GRNB 2nd cheapest of 28 funds
SIO 18th cheapest of 28 funds
GRNB vs SIO Dividends
- GRNB 4.52%
- SIO 7.01%, better
- GRNB $1.06
- SIO $1.75
- GRNB $0.09
- SIO $0.10
- GRNB Oct 1, 2026
- SIO Oct 29, 2026
- GRNB Oct 6, 2026
- SIO Oct 30, 2026
- GRNB Monthly
- SIO Monthly
Distribution history
GRNB vs SIO Risk
Fall from peak · 5 years
Risk facts
- Volatility
- GRNB 4.4%, betterSIO 5.0%
- Return per unit of risk
- GRNB 0.30SIO 0.66, better
- Worst fall
- GRNB −16.4%SIO −7.6%
- Market sensitivity
- GRNB 0.69SIO 0.84
Popular comparisons
- 0.20% · 0.22%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.50% · 0.22%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.20% · 0.05%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.50% · 0.05%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.20% · 0.20%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.50% · 0.20%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.