IUSB vs. VT
IUSB (iShares Core Universal USD Bond ETF) and VT (Vanguard Total World Stock ETF) are both exchange-traded funds - IUSB is a Intermediate Core-Plus Bond fund tracking the Bloomberg U.S. Universal Index, while VT is a Global Equities fund tracking the FTSE Global All Cap Index. Both are passively managed. Over the past 10 years, IUSB returned 1.89%/yr vs 13.20%/yr for VT. At a 0.10 correlation, their price movements are largely independent. Both charge a 0.06% expense ratio.
Performance
IUSB vs. VT - Performance Comparison
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Returns By Period
In the year-to-date period, IUSB achieves a 0.54% return, which is significantly lower than VT's 12.36% return. Over the past 10 years, IUSB has underperformed VT with an annualized return of 1.89%, while VT has yielded a comparatively higher 13.20% annualized return.
IUSB
- 1D
- -0.28%
- 1M
- 0.57%
- YTD
- 0.54%
- 6M
- 0.62%
- 1Y
- 4.82%
- 3Y*
- 4.47%
- 5Y*
- 0.40%
- 10Y*
- 1.89%
VT
- 1D
- -0.06%
- 1M
- 1.64%
- YTD
- 12.36%
- 6M
- 12.14%
- 1Y
- 29.57%
- 3Y*
- 20.75%
- 5Y*
- 11.13%
- 10Y*
- 13.20%
IUSB vs. VT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IUSB iShares Core Universal USD Bond ETF | 0.54% | 7.38% | 2.11% | 6.23% | -13.04% | -1.33% | 7.62% | 9.13% | -0.27% | 3.82% |
VT Vanguard Total World Stock ETF | 12.36% | 22.43% | 16.49% | 22.02% | -18.00% | 18.27% | 16.59% | 26.81% | -9.76% | 24.50% |
Correlation
The correlation between IUSB and VT is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.45 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.33 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.27 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.14 |
Correlation (All Time) Calculated using the full available price history since Jun 12, 2014 | 0.10 |
Over the past year, IUSB and VT have become more correlated (0.45) than their long-term average of 0.10, meaning their price movements have been converging.
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Return for Risk
IUSB vs. VT — Risk / Return Rank
IUSB
VT
IUSB vs. VT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core Universal USD Bond ETF (IUSB) and Vanguard Total World Stock ETF (VT). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| IUSB | VT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.86 | ||
| Sortino ratioReturn per unit of downside risk | -1.01 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.40 | -0.16 |
| Calmar ratioReturn relative to maximum drawdown | 1.92 | 3.07 | -1.15 |
| Martin ratioReturn relative to average drawdown | 5.54 | 13.35 | -7.82 |
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Drawdowns
IUSB vs. VT - Drawdown Comparison
The maximum IUSB drawdown since its inception was -17.90%, smaller than the maximum VT drawdown of -50.27%. Use the drawdown chart below to compare losses from any high point for IUSB and VT.
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Drawdown Indicators
| IUSB | VT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.90% | -50.27% | +32.37% |
Max Drawdown (1Y)Largest decline over 1 year | -2.53% | -9.67% | +7.14% |
Max Drawdown (3Y)Largest decline over 3 years | -5.82% | -16.51% | +10.69% |
Max Drawdown (5Y)Largest decline over 5 years | -17.87% | -26.38% | +8.51% |
Max Drawdown (10Y)Largest decline over 10 years | -17.90% | -34.24% | +16.34% |
Current DrawdownCurrent decline from peak | -1.22% | -0.77% | -0.45% |
Average DrawdownAverage peak-to-trough decline | -3.58% | -7.00% | +3.42% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.87% | 2.22% | -1.35% |
Volatility
IUSB vs. VT - Volatility Comparison
The current volatility for iShares Core Universal USD Bond ETF (IUSB) is 1.08%, while Vanguard Total World Stock ETF (VT) has a volatility of 5.23%. This indicates that IUSB experiences smaller price fluctuations and is considered to be less risky than VT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IUSB | VT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.08% | 5.23% | -4.15% |
Volatility (6M)Calculated over the trailing 6-month period | 2.73% | 11.12% | -8.39% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.59% | 13.44% | -9.85% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.80% | 16.16% | -10.36% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.05% | 17.27% | -12.22% |
IUSB vs. VT - Expense Ratio Comparison
Both IUSB and VT have an expense ratio of 0.06%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
IUSB vs. VT - Dividend Comparison
IUSB's dividend yield for the trailing twelve months is around 4.23%, more than VT's 1.58% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IUSB iShares Core Universal USD Bond ETF | 4.23% | 4.17% | 4.04% | 3.46% | 2.53% | 1.74% | 2.68% | 3.04% | 2.98% | 2.56% | 2.60% | 1.95% |
VT Vanguard Total World Stock ETF | 1.58% | 1.82% | 1.95% | 2.08% | 2.20% | 1.82% | 1.66% | 2.32% | 2.53% | 2.11% | 2.39% | 2.45% |
Frequently Asked Questions
IUSB and VT have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VT has higher volatility (5.23%) compared to IUSB (1.08%). In terms of maximum drawdown, IUSB dropped -17.90% vs VT's -50.27%.
On 10-year performance, VT leads with 13.20% vs 1.89% for IUSB. Both ETFs have the same 0.06% expense ratio. On volatility, IUSB has been the lower-risk option at 1.08%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, VT has performed better with a 13.20% return vs 1.89%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IUSB and VT have the same expense ratio: 0.06% per year.
IUSB has the higher dividend yield at 4.23%, compared with 1.58% for VT.
IUSB is categorized as Intermediate Core-Plus Bond, while VT is Global Equities. IUSB tracks Bloomberg U.S. Universal Index, while VT tracks FTSE Global All Cap Index. They also come from different issuers: iShares and Vanguard.
VT currently has the higher Sharpe Ratio (2.21 vs 1.35), 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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