Data as of Oct 28, 2026.
IVV vs VOO: Differences, Returns & Fees
Over the year to Oct 28, 2026, IVV and VOO finished level, +13.7% against +13.7%, and they share 96% of their weight.
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Net assets: $885.1bn on Oct 27, 2026 for iShares Core S&P 500 ETF, and $1.0tn on Sep 30, 2026 for Vanguard S&P 500 ETF.
Pair scorecard
Both cost 0.03% a year; both returned +13.7% over a year; VOO is 1.1 times larger.
Points (pts) are percentage points.
| Measure | IVV | VOO |
|---|---|---|
| Return | ||
| Total return, 1 year | +13.7% | +13.7% |
| Benchmark | ||
| What it tracks | S&P 500 | S&P 500 Index |
| Cost and size | ||
| Expense ratio | 0.03% | 0.03% |
| Net assets, as of Sep 30, 2026 | $881.3bn | $1.0tn |
| Holdings | ||
| Holdings in common | 96% | |
| Top ten holdings, share of the fund | 38.1% | 39.1% |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method
Risk and return
Sep 17, 2010 to Oct 23, 2026 · 840 weekly returnsEach against its own benchmark: IVV against SPY, May 26, 2000 to Oct 23, 2026; VOO against IVV, Sep 17, 2010 to Oct 23, 2026.
IVV and VOO returned about the same: +801.9% and +804.0%. IVV and VOO swung about the same: 16.0% and 15.9%. IVV and VOO fell about the same at their worst: −31.8% and −31.8%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | IVV | VOO | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +801.9% | +804.0% | Tie | Price change plus distributions, reinvested. |
| Annualized | +14.6% | +14.6% | Tie | Total return as a yearly rate. |
| Price return | +572.8% | +575.9% | Tie | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 16.0% | 15.9% | Tie | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 11.0% | 10.9% | Tie | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −31.8% | −31.8% | Tie | Deepest fall from a high to the low after it. |
| Upside capture | 99.3% | 99.8% | Share of its benchmark's rise caught in the weeks it rose. | |
| Downside capture | 99.7% | 99.9% | Share of its benchmark's fall taken in the weeks it fell. Lower is better. | |
| Beta | 0.99 | 1.00 | Not an edge | How far it moves for each 1% its benchmark moves. |
| R squared | 1.00 | 1.00 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | ||||
| Sharpe | 0.83 | 0.84 | Tie | Return above Treasury bills per unit of volatility. |
| Sortino | 1.21 | 1.22 | Tie | Return above Treasury bills per unit of downside deviation. |
| Treynor | 0.081 | 0.134 | Return above Treasury bills per unit of beta. | |
| Calmar | 0.46 | 0.46 | Tie | Annualized return divided by the max drawdown. |
| Against the benchmark | ||||
| Benchmark | SPY | IVV | The ETF each fund is measured against. | |
| Alpha | +0.1% a year | 0.0% a year | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | 0.33 | 0.51 | Not an edge | How sure the alpha is. Below 2, it could be chance. |
| Alpha range | −0.4% to +0.5% | −0.1% to +0.2% | Includes zero | The 95% range for the yearly alpha. |
| Information ratio | 0.00 | 0.02 | Return against its benchmark per unit of tracking error. | |
| Tracking error | 1.2% | 0.4% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 840 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IVV and VOO hold 96% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.
half
96% in common
Only in one fund ↓
Side by side
IVV and VOO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IVV and VOO are close to the same fund. What, if anything, separates them?
- What each follows (similar). Both follow S&P 500.
- Holdings in common (similar). 96% of the weight is in the same securities (holdings dated Oct 27, 2026 and Sep 30, 2026).
- One-year total return (similar). Over 1 year to Oct 28, 2026 IVV returned +13.7% and VOO +13.7% with distributions reinvested, a gap of 0.0 points.
Data as of Oct 28, 2026.
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IVV
IVV tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.7% with distributions reinvested, against +13.6% for its benchmark, the S&P 500. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 505 positions, with the top ten at 38.1%.
VOO
VOO tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.7% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. By its holdings published by its issuer as of Sep 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 507 positions, with the top ten at 39.1%.
Questions people ask
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, IVV against VOO, data as of Oct 28, 2026. https://etfiq.com/compare/any/ivv-vs-voo
ETFIQ. (Oct 28, 2026). IVV against VOO. Retrieved from https://etfiq.com/compare/any/ivv-vs-voo
[IVV against VOO (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/ivv-vs-voo)
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