AOK vs VOO
iShares Core 30/70 Conservative Allocation ETF vs Vanguard S&P 500 ETF
Which is better, AOK or VOO?
Debt-oriented balanced 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 | AOK | VOO |
|---|---|---|
| Expense Ratio | 0.15% | 0.03%Best |
| AUM | $797M | $997.4B |
| Dividend Yield | 3.36% | 1.04% |
| Holdings | 9 | 509 |
| YTD Return | +3.17% | +12.37%Best |
| 1Y Return | +5.32% | +16.61%Best |
| 3Y Return (annualized) | +9.22% | +21.37%Best |
| 5Y Return (annualized) | +3.45% | +13.49%Best |
| Volatility (annualized) | 5.9%Best | 14.1% |
| Max Drawdown | -18.9%Best | -34.3% |
| $10,000 over 5 years | $11,848 | $18,827Best |
| Top 10 Weight | - | 37.6% |
| Fund Family | iShares by BlackRock (US) | Vanguard (US) |
| Category | Allocation/Balanced | Equity |
| Style | Debt-oriented balanced | Large Cap Blend |
| Inception | Nov 4, 2008 | Sep 7, 2010 |
Volatility and max drawdown are measured over the window both funds cover: Sep 9, 2010 to Sep 18, 2026 (16 years).
AOK 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.
AOK vs VOO Performance
iShares Core 30/70 Conservative Allocation ETF (AOK) 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 AOK returned +5.32% while VOO returned +16.61%. Year to date, AOK is up 3.17% versus a gain of 12.37% for VOO.
Over three years, AOK compounded at +9.22% per year against +21.37% for VOO; over five years the annualized figures are +3.45% and +13.49% respectively. Across the full 16-year window we track, VOO has the edge at +13.39% annualized vs +3.38%.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
VOO has been the more volatile fund, with annualized monthly volatility of 14.1% compared with 5.9% for AOK. 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 -18.9% for AOK 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 0.86. They usually move together, but the gap leaves some room for diversification.
Fees and Cost Over Time
AOK charges 0.15% per year while VOO charges 0.03%. On a $10,000 position that is $15 vs $3 annually, a gap of $12 per year that compounds over a long holding period. On income, AOK currently yields 3.36% against 1.04% for VOO.
Holdings Overlap
We hold position weights for 8 holdings in AOK and 494 in VOO, totalling 99.8% and 99.5% of the two funds. The two books name no position in common, so there is no overlap percentage to show.
0 positions in common, counted across the 8 positions we hold weights for in AOK and 494 in VOO, against full books of 9 and 509.
What only one of them owns
Our book lists 487 positions for VOO that do not appear in our book for AOK (99.2% of the fund), and 8 for AOK that do not appear in VOO (99.8%).
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 AOK 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, AOK or VOO?
AOK has an expense ratio of 0.15% while VOO charges 0.03%. VOO is the cheaper option, by $12 a year on a $10,000 investment.
Which performed better, AOK or VOO?
Over the past year AOK returned +5.32% vs +16.61% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (16 years), AOK annualized +3.38% vs +13.39% for VOO. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, AOK or VOO?
VOO has been the more volatile fund at 14.1% annualized versus 5.9% for AOK. Worst drawdown: AOK -18.9% vs VOO -34.3%.
Should I hold both AOK and VOO?
AOK and VOO have a monthly-return correlation of 0.86, 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, AOK or VOO?
AOK yields 3.36% while VOO yields 1.04%, so AOK currently pays the higher dividend yield.
Is VOO better than AOK?
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.