IBGK vs VOO
iShares iBonds Dec 2054 Term Treasury ETF vs Vanguard S&P 500 ETF
Which is better, IBGK or VOO?
Short Term Municipal Bond against Large Cap Blend.
VOO has a lower expense ratio. VOO led over 1Y 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 | IBGK | VOO |
|---|---|---|
| Expense Ratio | 0.07% | 0.03%Best |
| AUM | $6M | $997.4B |
| Dividend Yield | 4.79% | 1.04% |
| Holdings | 6 | 509 |
| YTD Return | -4.23% | +11.55%Best |
| 1Y Return | -5.60% | +17.54%Best |
| 3Y Return (annualized) | - | +20.71% |
| 5Y Return (annualized) | - | +12.80% |
| Volatility (annualized) | 10.3%Best | 12.0% |
| Max Drawdown | -14.0%Best | -18.7% |
| $10,000 over 2.2 years | $9,751 | $14,294Best |
| Top 10 Weight | - | 36.4% |
| Fund Family | iShares by BlackRock (US) | Vanguard (US) |
| Category | Fixed Income | Equity |
| Style | Short Term Municipal Bond | Large Cap Blend |
| Inception | Jun 11, 2024 | Sep 7, 2010 |
Volatility and max drawdown, and the $10,000 over 2.2 years row, are measured over the window both funds cover: Jun 12, 2024 to Sep 10, 2026 (2.2 years).
IBGK 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 covers the 2.2 years both funds cover.
IBGK vs VOO Performance
iShares iBonds Dec 2054 Term Treasury ETF (IBGK) 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 IBGK returned -5.60% while VOO returned +17.54%. Year to date, IBGK is down 4.23% versus a gain of 11.55% for VOO.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
VOO has been the more volatile fund, with annualized monthly volatility of 12.0% compared with 10.3% for IBGK. 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 -14.0% for IBGK and -18.7% 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 0.24. They move largely independently of each other.
Fees and Cost Over Time
IBGK charges 0.07% per year while VOO charges 0.03%. On a $10,000 position that is $7 vs $3 annually, a gap of $4 per year that compounds over a long holding period. On income, IBGK currently yields 4.79% against 1.04% for VOO.
Holdings Overlap
We hold position weights for 5 holdings in IBGK and 505 in VOO, totalling 100.7% and 99.9% of the two funds. The two books name no position in common, so there is no overlap percentage to show.
The two holdings books were reported 62 days apart, IBGK as of Aug 31, 2026 and VOO as of Jun 30, 2026, so some of the difference between them is the time between the two reports rather than the funds.
0 positions in common, counted across the 5 positions we hold weights for in IBGK and 505 in VOO, against full books of 6 and 509.
What only one of them owns
Our book lists 496 positions for VOO that do not appear in our book for IBGK (99.4% of the fund), and 5 for IBGK that do not appear in VOO (100.7%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
You are not choosing between two funds in isolation.
Whichever of IBGK 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, IBGK or VOO?
IBGK has an expense ratio of 0.07% while VOO charges 0.03%. VOO is the cheaper option, by $4 a year on a $10,000 investment.
Which performed better, IBGK or VOO?
Over the past year IBGK returned -5.60% vs +17.54% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (2 years), IBGK annualized -1.14% vs +17.63% for VOO. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, IBGK or VOO?
VOO has been the more volatile fund at 12.0% annualized versus 10.3% for IBGK. Worst drawdown: IBGK -14.0% vs VOO -18.7%.
Should I hold both IBGK and VOO?
IBGK and VOO have a monthly-return correlation of 0.24, so their returns are far enough apart for the mix to behave differently from either one alone. This is information, not a recommendation.
Which pays a higher dividend, IBGK or VOO?
IBGK yields 4.79% while VOO yields 1.04%, so IBGK currently pays the higher dividend yield.
Is VOO better than IBGK?
VOO has a lower expense ratio. VOO led over 1Y and the full window. Which one suits a particular account depends on what it is for. This is information, not a recommendation.