IUSB vs VOO
iShares Core Universal USD Bond ETF vs Vanguard S&P 500 ETF
Which is better, IUSB or VOO?
Long Term Mid Quality against Large Cap Blend.
VOO has a lower expense ratio. VOO led over 1Y, 3Y, 5Y and the full window.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | IUSB | VOO |
|---|---|---|
| Expense Ratio | 0.06% | 0.03%Best |
| AUM | $43.5B | $997.4B |
| Dividend Yield | 4.29% | 1.04% |
| Holdings | 17,578 | 509 |
| YTD Return | -1.03% | +12.37%Best |
| 1Y Return | -0.04% | +16.61%Best |
| 3Y Return (annualized) | +4.56% | +21.37%Best |
| 5Y Return (annualized) | -0.18% | +13.49%Best |
| Volatility (annualized) | 4.8%Best | 14.8% |
| Max Drawdown | -50.2% | -34.3%Best |
| $10,000 over 5 years | $9,910 | $18,827Best |
| Fund Family | iShares by BlackRock (US) | Vanguard (US) |
| Category | Fixed Income | Equity |
| Style | Long Term Mid Quality | Large Cap Blend |
| Inception | Jun 10, 2014 | Sep 7, 2010 |
Not shown on this pair: Top 10 Weight.
Volatility and max drawdown are measured over the window both funds cover: Jun 12, 2014 to Sep 18, 2026 (12.3 years).
IUSB vs VOO growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
IUSB vs VOO Performance
iShares Core Universal USD Bond ETF (IUSB) is an ETF from iShares by BlackRock (US) and Vanguard S&P 500 ETF (VOO) is an ETF from Vanguard (US). Over the past year IUSB returned -0.04% while VOO returned +16.61%. Year to date, IUSB is down 1.03% versus a gain of 12.37% for VOO.
Over three years, IUSB compounded at +4.56% per year against +21.37% for VOO; over five years the annualized figures are -0.18% and +13.49% respectively. Across the full 12-year window we track, VOO has the edge at +12.58% annualized vs +0.60%.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
VOO has been the more volatile fund, with annualized monthly volatility of 14.8% compared with 4.8% for IUSB. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -50.2% for IUSB and -34.3% for VOO. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.45. They move together some of the time, and apart the rest.
Fees and Cost Over Time
IUSB charges 0.06% per year while VOO charges 0.03%. On a $10,000 position that is $6 vs $3 annually, a gap of $3 per year that compounds over a long holding period. On income, IUSB currently yields 4.29% against 1.04% for VOO.
Holdings Overlap
At least 1.7% of VOO's money is in holdings IUSB also owns.
Stated as a floor: for IUSB, our book for it covers 60.4% of that fund, so a holding it does not list is one we cannot count as shared. The real figure is this or higher.
VOO and IUSB share little of their money.
9 positions in common, counted across the 12,830 positions we hold weights for in IUSB and 494 in VOO, against full books of 17,578 and 509.
Top Shared Holdings
| Stock | Weight in IUSB | Weight in VOO | Difference |
|---|---|---|---|
| GEGeneral Electric Co. | 0.00% | 0.58% | 0.58% |
| LRCXLam Research Corp | 0.00% | 0.57% | 0.57% |
| DUKDuke Energy Corp | 0.00% | 0.15% | 0.15% |
| TMUST-Mobile Usa Inc Esrw Usd Npv Ref Sm#585558 | 0.02% | 0.12% | 0.10% |
| AONAon Public Limited Company Cl. A | 0.00% | 0.12% | 0.12% |
| ADMArcher-Daniels-Midland Co. | 0.00% | 0.06% | 0.06% |
| CNPCenterpoint Energy Inc. | 0.00% | 0.04% | 0.04% |
| HUBBHubbell Inc | 0.00% | 0.04% | 0.04% |
| LYBLyondellbasell-a | 0.00% | 0.02% | 0.02% |
You are not choosing between two funds in isolation.
Whichever of IUSB and VOO you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, IUSB or VOO?
IUSB has an expense ratio of 0.06% while VOO charges 0.03%. VOO is the cheaper option, by $3 a year on a $10,000 investment.
Which performed better, IUSB or VOO?
Over the past year IUSB returned -0.04% vs +16.61% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (12 years), IUSB annualized +0.60% vs +12.58% for VOO. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, IUSB or VOO?
VOO has been the more volatile fund at 14.8% annualized versus 4.8% for IUSB. Worst drawdown: IUSB -50.2% vs VOO -34.3%.
Should I hold both IUSB and VOO?
IUSB and VOO have a monthly-return correlation of 0.45, so their returns are far enough apart for the mix to behave differently from either one alone. This is information, not a recommendation.
What is the holdings overlap between IUSB and VOO?
At least 1.7% of VOO's money is in holdings IUSB also owns. Our book for IUSB is partial, so the real figure is this or higher. They hold 9 positions in common, counted across the 12,830 positions we hold weights for in IUSB and 494 in VOO.
Which pays a higher dividend, IUSB or VOO?
IUSB yields 4.29% while VOO yields 1.04%, so IUSB currently pays the higher dividend yield.
Is VOO better than IUSB?
VOO has a lower expense ratio. VOO led over 1Y, 3Y, 5Y and the full window. Which one suits a particular account depends on what it is for. This is information, not a recommendation.