IEZ vs VOO
iShares US Oil Equipment & Services ETF vs Vanguard S&P 500 ETF
Quick Verdict
VOO has a lower expense ratio. IEZ delivered stronger 1-year returns. VOO offers more diversification with 509 holdings.
Side-by-Side Comparison
| Metric | IEZ | VOO | Winner |
|---|---|---|---|
| Expense Ratio | 0.37% | 0.03% | |
| AUM | $381M | $997.4B | |
| Dividend Yield | 1.27% | 1.08% | |
| Holdings | 35 | 509 | |
| YTD Return | +40.53% | +14.27% | |
| 1Y Return | +72.86% | +21.79% | |
| 3Y Return (annualized) | +10.44% | +22.19% | |
| 5Y Return (annualized) | +20.72% | +13.28% | |
| Volatility (annualized) | 37.9% | 14.2% | |
| Max Drawdown | -93.5% | -34.3% | |
| Fund Family | iShares by BlackRock (US) | Vanguard (US) | |
| Category | Equity | Equity | |
| Inception | May 1, 2006 | Sep 7, 2010 |
IEZ vs VOO Performance
iShares US Oil Equipment & Services ETF (IEZ) is a ETF from iShares by BlackRock (US) and Vanguard S&P 500 ETF (VOO) is a ETF from Vanguard (US). Over the past year IEZ returned +72.86% while VOO returned +21.79%. Year to date, IEZ is up 40.53% versus a gain of 14.27% for VOO.
Over three years, IEZ compounded at +10.44% per year against +22.19% for VOO; over five years the annualized figures are +20.72% and +13.28% respectively. Across the full 16-year window we track, VOO has the edge at +13.59% annualized vs -2.34%. Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
IEZ has been the more volatile fund, with annualized monthly volatility of 37.9% compared with 14.2% for VOO. 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 -93.5% for IEZ and -34.3% for VOO. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.
The two funds' monthly returns correlate at 0.61. They move independently enough that combining them can meaningfully diversify a portfolio.
Fees and Cost Over Time
IEZ charges 0.37% per year while VOO charges 0.03%. On a $10,000 position that is $37 vs $3 annually, a gap of $34 per year that compounds over a long holding period. On income, IEZ currently yields 1.27% against 1.08% for VOO.
Holdings Overlap
IEZ and VOO share 3 holdings out of 534 unique holdings combined, representing a 0.2% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Frequently Asked Questions
Which is cheaper, IEZ or VOO?
IEZ has an expense ratio of 0.37% while VOO charges 0.03%. VOO is the cheaper option. On a $10,000 investment, that is $34 per year of difference.
Which performed better, IEZ or VOO?
Over the past year IEZ returned +72.86% vs +21.79% for VOO, so IEZ leads on 1-year performance. Over the longest common window we track (16 years), IEZ annualized -2.34% vs +13.59% for VOO. Past performance does not guarantee future results.
Which is riskier, IEZ or VOO?
IEZ has been the more volatile fund at 37.9% annualized versus 14.2% for VOO. Worst drawdown: IEZ -93.5% vs VOO -34.3%.
Should I hold both IEZ and VOO?
IEZ and VOO have a monthly-return correlation of 0.61, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between IEZ and VOO?
IEZ and VOO share 3 common holdings with a 0.2% weight overlap. Combined, they hold 534 unique securities.
Which pays a higher dividend, IEZ or VOO?
IEZ yields 1.27% while VOO yields 1.08%, so IEZ currently pays the higher dividend yield.
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