Data as of Oct 28, 2026.
IUSB vs VWO: Differences, Returns & Fees
Over the year to Oct 28, 2026, IUSB returned −1.2% to VWO's +4.8%; 0% of their weight is in the same names.
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Net assets: $49.8bn on Oct 27, 2026 for iShares Core Universal USD Bond ETF, and $125.4bn on Sep 30, 2026 for Vanguard FTSE Emerging Markets ETF.
Pair scorecard
Both cost 0.06% a year; their one-year returns differ by 6.0 points; VWO is 2.6 times larger.
| Measure | IUSB | VWO |
|---|---|---|
| Return | ||
| Total return, 1 year | −1.2% | +4.8% |
| Drawdown | ||
| Below its high | 7.0%, high on Sep 4, 2026 | |
| Benchmark | ||
| What it tracks | Bloomberg U.S. Universal Index | FTSE Emerging Markets All Cap China A Inclusion Index |
| Cost and size | ||
| Expense ratio | 0.06% | 0.06% |
| Net assets, as of Sep 30, 2026 | $48.1bn | $125.4bn |
| Holdings | ||
| Holdings in common | 0% | |
| In the S&P 500, by weight | 0% | |
| Top ten holdings, share of the fund | 29.8% | |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method
Risk and return
Jun 20, 2014 to Oct 23, 2026 · 644 weekly returnsVWO returned more: +85.1% to +28.3%. IUSB swung less: 5.0% to 18.0%. IUSB fell less at its worst: −17.7% to −35.3%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | IUSB | VWO | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +28.3% | +85.1% | VWO | Price change plus distributions, reinvested. |
| Annualized | +2.0% | +5.1% | VWO | Total return as a yearly rate. |
| Price return | −10.7% | +30.3% | VWO | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 5.0% | 18.0% | IUSB | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 3.6% | 12.9% | IUSB | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −17.7% | −35.3% | IUSB | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.02 | 0.25 | VWO | Return above Treasury bills per unit of volatility. |
| Sortino | 0.02 | 0.35 | VWO | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.11 | 0.14 | VWO | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 644 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IUSB and VWO hold 0% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
IUSB and VWO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IUSB and VWO do different jobs. What does each one do in a portfolio?
- What each follows. IUSB follows Bloomberg U.S. Universal Index and VWO follows FTSE Emerging Markets All Cap China A Inclusion Index.
- Holdings in common. 0% of the weight is in the same securities (holdings dated Oct 27, 2026 and Sep 30, 2026).
- One-year total return. Over 1 year to Oct 28, 2026 IUSB returned −1.2% and VWO +4.8% with distributions reinvested, a gap of 6.0 points.
Data as of Oct 28, 2026.
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IUSB
IUSB tracks an index of Universal USD Bond. Over the year to Oct 28, 2026 it returned −1.2% with distributions reinvested. The prospectus expense ratio is 0.06% a year.
VWO
VWO tracks an index of Emerging markets. Over the year to Oct 28, 2026 it returned +4.8% with distributions reinvested. By its holdings published by its issuer as of Sep 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 6,515 positions, with the top ten at 29.8%. It sat 7.0% below its high of Sep 4, 2026 on Oct 28, 2026.
Questions people ask
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
Cite this pageCitation, APA and Markdown
ETFIQ, IUSB against VWO, data as of Oct 28, 2026. https://etfiq.com/compare/any/iusb-vs-vwo
ETFIQ. (Oct 28, 2026). IUSB against VWO. Retrieved from https://etfiq.com/compare/any/iusb-vs-vwo
[IUSB against VWO (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/iusb-vs-vwo)
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