IVV vs SEIS
iShares Core S&P 500 ETF vs SEI Select Small Cap ETF
Quick Verdict
IVV has a lower expense ratio. IVV delivered stronger 1-year returns. IVV offers more diversification with 508 holdings.
Side-by-Side Comparison
| Metric | IVV | SEIS | Winner |
|---|---|---|---|
| Expense Ratio | 0.03% | 0.55% | |
| AUM | $886.7B | $602M | |
| Dividend Yield | 1.10% | 0.34% | |
| Holdings | 508 | 373 | |
| YTD Return | +12.64% | +15.37% | |
| 1Y Return | +20.92% | +18.64% | |
| 3Y Return (annualized) | +21.07% | - | |
| 5Y Return (annualized) | +12.62% | - | |
| Volatility (annualized) | 15.1% | 18.4% | |
| Max Drawdown | -56.5% | -25.7% | |
| Fund Family | iShares by BlackRock (US) | SEI EXCHANGE TRADED FUNDS | |
| Category | Equity | Equity | |
| Inception | May 15, 2000 | Oct 8, 2024 |
IVV vs SEIS Performance
iShares Core S&P 500 ETF (IVV) is a ETF from iShares by BlackRock (US) and SEI Select Small Cap ETF (SEIS) is a ETF from SEI EXCHANGE TRADED FUNDS. Over the past year IVV returned +20.92% while SEIS returned +18.64%. Year to date, IVV is up 12.64% versus a gain of 15.37% for SEIS.
Risk: Volatility and Drawdowns
SEIS has been the more volatile fund, with annualized monthly volatility of 18.4% compared with 15.1% for IVV. 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 -56.5% for IVV and -25.7% for SEIS. 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 0.79. They usually move together, but the gap leaves some room for diversification.
Fees and Cost Over Time
IVV charges 0.03% per year while SEIS charges 0.55%. On a $10,000 position that is $3 vs $55 annually, a gap of $52 per year that compounds over a long holding period. On income, IVV currently yields 1.10% against 0.34% for SEIS.
Holdings Overlap
IVV and SEIS share 10 holdings out of 864 unique holdings combined, representing a 0.6% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Frequently Asked Questions
Which is cheaper, IVV or SEIS?
IVV has an expense ratio of 0.03% while SEIS charges 0.55%. IVV is the cheaper option. On a $10,000 investment, that is $52 per year of difference.
Which performed better, IVV or SEIS?
Over the past year IVV returned +20.92% vs +18.64% for SEIS, so IVV leads on 1-year performance. Over the longest common window we track (2 years), IVV annualized +6.98% vs +14.82% for SEIS. Past performance does not guarantee future results.
Which is riskier, IVV or SEIS?
SEIS has been the more volatile fund at 18.4% annualized versus 15.1% for IVV. Worst drawdown: IVV -56.5% vs SEIS -25.7%.
Should I hold both IVV and SEIS?
IVV and SEIS have a monthly-return correlation of 0.79, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between IVV and SEIS?
IVV and SEIS share 10 common holdings with a 0.6% weight overlap. Combined, they hold 864 unique securities.
Which pays a higher dividend, IVV or SEIS?
IVV yields 1.10% while SEIS yields 0.34%, so IVV currently pays the higher dividend yield.
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