IVV vs VOO: Which Should You Buy?
Same 0.03% fee, about 96% the same holdings.
For most investors it barely matters. IVV and VOO have returned effectively the same amount per year and overlap about 96% by weight. Pick IVV for the tighter 504-holding portfolio; pick VOO to own 505 instead. Both cost 0.03% per year.
This is purely for informational purposes, not investment advice. Always consult a professional before making investment decisions.
IVV wins if...
You want the tighter portfolio: 504 holdings rather than 505.
VOO wins if...
You want maximum diversification: 505 holdings covering the broader market, tracking the Standard & Poor's 500 Index.
IVV vs VOO, side by side
The numbers that actually differ are highlighted.
| Metric | IVViShares Core S&P 500 ETF | VOOVanguard S&P 500 ETF |
|---|---|---|
| Index tracked | — | Standard & Poor's 500 Index |
| Number of holdings | 504 | 505 |
| Expense ratio | 0.03% | 0.03% |
| Dividend yield | 1.10% | 1.05% |
| AUM | $822.62B | $1.80T |
| Top 10 concentration | 38.2% | 37.8% |
| 10-yr total return | 15.4% | 15.4% |
| 5-yr total return | 13.5% | 13.5% |
| Beta (vs S&P 500) | 1.00 | 1.01 |
| Max drawdown (10yr) | -33.9% | -34.0% |
| Market-cap coverage | Large cap | Large cap |
| Inception | 2000 | 2010 |
— means the figure is not reported for that fund.
IVV holds 504 positions. VOO holds 505, a broader slice of the same market.
How much do IVV and VOO overlap?
The single most decision-relevant fact, and the one most comparisons skip.
- Shared
- 95.7%
- VOO-only
- 4.5%
~96% identical by weight
475 weighted positions appear in both funds, and by weight about 96% of the two portfolios is the same exposure. Where a stock sits in both, the shared share is whichever weight is smaller. That is the part of a dollar that behaves identically in either fund.
The difference is VOO's remaining 1 positions, which IVV does not hold at all. They are smaller by weight, which is why the two track each other closely and drift apart only at the margins.
Growth of $10,000: IVV vs VOO
Growth of $10,000
10 years
Which should you choose?
- You want concentrated exposure: 504 holdings, not 505
- You want the higher yield: 1.10% against 1.05%
- You want the wider net: 505 holdings against 504
- You want to track the Standard & Poor's 500 Index
- You want the larger, more heavily traded fund ($1.8T)
Compare and track all ETFs in your sheet
Type =WISE("IVV","dividend yield","ttm") or =WISEFUNDS("IVV","expense ratio") in Excel or Google Sheets and the fund's data lands in your sheet, ready to be refreshed when you want.
Get The Add-in - FreeIVV vs VOO frequently asked questions
For most investors the choice barely matters: IVV and VOO have returned effectively the same amount per year and they overlap roughly 96% by weight. Both charge 0.03%, so cost is not the deciding factor.
IVV holds 504 positions. VOO holds 505, a broader slice of the same market.
Yes, by about 96% by weight. 475 weighted positions appear in both funds. Because the largest positions dominate both portfolios, the two behave similarly day to day.
You can, but there is little reason to. At about 96% overlap, owning both mostly duplicates the same positions and adds little diversification.