IVV vs VOO: Holdings Overlap
iShares · 503 holdings · $901.0B · as of 2026-03-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
How similar are IVV and VOO?
iShares Core S&P 500 ETF (IVV, by iShares) holds 503 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 503 holdings in common, and by portfolio weight the two funds are 99.6% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 99.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 503IVV holds 503 · VOO holds 504
- Weight in Shared Holdings
- IVV 100%·VOO 100%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IVV
Every position in IVV is also held by VOO, so it brings nothing the other fund doesn’t already own.
Only in VOO
1 of 504 positions (0.0% of the fund) are not held by IVV.
- ABIOMED INC-CVR0.00%
Sector Breakdown
| Sector | IVV | VOO |
|---|---|---|
| Information Technology | 32.6% | 32.7% |
| Financials | 12.6% | 12.4% |
| Communication Services | 10.5% | 10.5% |
| Consumer Discretionary | 9.8% | 9.9% |
| Health Care | 9.4% | 9.5% |
| Other Sectors | 24.8% | 24.9% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IVV | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.05% |
| VOO | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.03% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IVV vs VOO →
Shared Holdings(503)
The top 10 shared positions account for 37% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 7.56% | 7.58% | 7.56% |
|---|---|---|---|
 AAPLApple Inc. COM | 6.65% | 6.66% | 6.65% |
 MSFTMicrosoft Corp. COM | 4.91% | 4.91% | 4.91% |
 AMZNAmazon.com, Inc. COM | 3.63% | 3.64% | 3.63% |
 GOOGLAlphabet Inc. CAP STK CL A | 2.99% | 2.99% | 2.99% |
 AVGOBroadcom Inc COM | 2.62% | 2.62% | 2.62% |
 GOOGAlphabet Inc. CAP STK CL C | 2.39% | 2.40% | 2.39% |
 METAMeta Platforms, Inc., Class A | 2.23% | 2.24% | 2.23% |
 TSLATesla Inc COM | 1.87% | 1.87% | 1.87% |
 BRK-BBerkshire Hathaway, Inc., Class B | 1.57% | 1.57% | 1.57% |
 JPMJPMorgan Chase & Co. COM | 1.42% | 1.34% | 1.34% |
 LLYEli Lilly & Co. COM | 1.30% | 1.30% | 1.30% |
 XOMExxon Mobil Corp. COM | 1.27% | 1.27% | 1.27% |
 JNJJohnson & Johnson COM | 1.05% | 1.05% | 1.05% |
 WMTWalmart Inc COM | 0.97% | 0.97% | 0.97% |
 VVisa, Inc., Class A | 0.91% | 0.89% | 0.89% |
 COSTCostco Wholesale Corporation COM | 0.79% | 0.79% | 0.79% |
 MAMasterCard Incorporated CL A | 0.73% | 0.73% | 0.73% |
 NFLXNetflix, Inc. COM | 0.72% | 0.73% | 0.72% |
 CVXChevron Corp. COM | 0.69% | 0.69% | 0.69% |
 ABBVAbbVie Inc. COM | 0.69% | 0.69% | 0.69% |
 MUMicron Technology Inc. COM | 0.68% | 0.68% | 0.68% |
 PGThe Procter & Gamble Co. COM | 0.60% | 0.60% | 0.60% |
 PLTRPalantir Technologies, Inc., Class A | 0.60% | 0.60% | 0.60% |
 AMDAdvanced Micro Devices Inc. COM | 0.59% | 0.59% | 0.59% |
Showing the top 250 of 503 shared holdings by overlap weight.
Frequently Asked Questions
How much do IVV and VOO overlap?
IVV and VOO overlap by 99.6% of portfolio weight. They share 503 holdings (IVV holds 503 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVV and VOO?
The two portfolios are 99.6% identical by weight. Owning both is largely redundant: they are close to the same portfolio, so a second position mostly duplicates the first.
What are the biggest shared holdings of IVV and VOO?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 37% of the total overlap.
What does IVV own that VOO doesn't?
Nothing. Every position in IVV is also held by VOO. In the other direction, 1 positions (0.0% of VOO) are unique to VOO.