BNDW ranks 2nd and SIO 19th of 28 funds in the Global Aggregate Bond (Unhedged) Category.
BNDW vs SIO
BNDW −0.45pt a year
0.05%0.50%
BNDW 2.6×the volume
117K45.3K
SIO +3.0pt
+4.9%+7.9%
BNDW vs SIO Performance
−0.4%+1.1%
- BNDW 0.05%, better
- SIO 0.50%
- BNDW $1.9B
- SIO $287M
- BNDW −0.4%
- SIO +1.1%, better
- BNDW 4.36%
- SIO 7.01%, better
- BNDW 4
- SIO 242
- BNDW 117K sh, better
- SIO 45.3K sh
- BNDW $66.90
- SIO $24.84
ETF.net Grade
| Pillar | BNDW | SIO |
|---|---|---|
| Cost | A100Higher | D39 |
| Mission | A100Higher | A70 |
| Risk | C43 | B60Higher |
| Tradability | B67Higher | F21 |
| Holdings | F20 | C47Higher |
| Durability | A83Higher | C44 |
Rank among Global Aggregate Bond (Unhedged) funds
Same Category. BNDW 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
BNDWA
SIOC
In short
BNDW One ticker for the whole investment-grade bond market, home and abroad. Vanguard built BNDW as a wrapper around its own US and international bond funds and prices the package at 0.05% a year.
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
BNDW The fund seeks to track the Bloomberg Global Aggregate Float Adjusted Composite Index and provide broad exposure to the global investment-grade bond market through an ETF-of-ETFs structure.
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
BNDW 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.
BNDW vs SIO Cost
Overpaying SIO vs BNDW
$8,919
On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.
BNDW 0.05%
$1,060
SIO 0.50%
$9,979
Cost over time
Year by year
| Year | BNDW | SIO | Overpaying |
|---|---|---|---|
| 10 | $92 | $900 | $808 |
| 20 | $360 | $3,460 | $3,100 |
| 30 | $1,060 | $9,979 | $8,919 |
- 0.05%BNDW, cheaper
- 0.50%SIO
- Middle half of Global Aggregate Bond (Unhedged) funds
- Median 0.40%
BNDW cheapest of 28 funds
SIO 18th cheapest of 28 funds
BNDW vs SIO Dividends
- BNDW 4.36%
- SIO 7.01%, better
- BNDW $2.92
- SIO $1.75
- BNDW $0.20
- SIO $0.10
- BNDW Oct 1, 2026
- SIO Oct 29, 2026
- BNDW Oct 5, 2026
- SIO Oct 30, 2026
- BNDW Monthly
- SIO Monthly
Distribution history
BNDW vs SIO Risk
Fall from peak · 5 years
Risk facts
- Volatility
- BNDW 4.7%, betterSIO 5.0%
- Return per unit of risk
- BNDW 0.10SIO 0.66, better
- Worst fall
- BNDW −16.2%SIO −7.6%
- Market sensitivity
- BNDW 0.82SIO 0.84
BNDW and SIO in the news
Popular comparisons
- 0.05% · 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.
- 0.05% · 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.
- 0.05% · 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.
