VOO vs ITOT: Holdings Overlap
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
ITOTiShares Core S&P Total U.S. Stock Market ETF
iShares · 2487 holdings · $97.6B · as of 2026-03-31
How similar are VOO and ITOT?
Vanguard 500 Index Fund (VOO, by Vanguard) holds 504 positions; iShares Core S&P Total U.S. Stock Market ETF (ITOT, by iShares) holds 2487. They have 503 holdings in common, and by portfolio weight the two funds are 88.2% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 88.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 503VOO holds 504 · ITOT holds 2487
- Weight in Shared Holdings
- VOO 100%·ITOT 88%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 VOO
1 of 504 positions (0.0% of the fund) are not held by ITOT.
- ABIOMED INC-CVR0.00%
Only in ITOT
1984 of 2487 positions (11.5% of the fund) are not held by VOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | VOO | ITOT |
|---|---|---|
| Information Technology | 32.7% | 30.8% |
| Financials | 12.4% | 12.9% |
| Communication Services | 10.5% | 9.7% |
| Industrials | 9.0% | 10.2% |
| Health Care | 9.5% | 9.9% |
| Other Sectors | 25.7% | 26.2% |
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 |
|---|---|---|---|---|---|---|---|
| VOO | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.03% |
| ITOT | +3.3% | +14.6% | +24.1% | +20.9% | +12.3% | +14.9% | 0.97% |
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 VOO vs ITOT →
Shared Holdings(503)
The top 10 shared positions account for 37% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 7.58% | 6.69% | 6.69% |
|---|---|---|---|
 AAPLApple Inc. COM | 6.66% | 5.88% | 5.88% |
 MSFTMicrosoft Corp. COM | 4.91% | 4.34% | 4.34% |
 AMZNAmazon.com, Inc. COM | 3.64% | 3.21% | 3.21% |
 GOOGLAlphabet Inc. CAP STK CL A | 2.99% | 2.64% | 2.64% |
 AVGOBroadcom Inc COM | 2.62% | 2.32% | 2.32% |
 GOOGAlphabet Inc. CAP STK CL C | 2.40% | 2.12% | 2.12% |
 METAMeta Platforms, Inc., Class A | 2.24% | 1.98% | 1.98% |
 TSLATesla Inc COM | 1.87% | 1.65% | 1.65% |
 BRK-BBerkshire Hathaway, Inc., Class B | 1.57% | 1.39% | 1.39% |
 JPMJPMorgan Chase & Co. COM | 1.34% | 1.25% | 1.25% |
 LLYEli Lilly & Co. COM | 1.30% | 1.15% | 1.15% |
 XOMExxon Mobil Corp. COM | 1.27% | 1.12% | 1.12% |
 JNJJohnson & Johnson COM | 1.05% | 0.93% | 0.93% |
 WMTWalmart Inc COM | 0.97% | 0.86% | 0.86% |
 VVisa, Inc., Class A | 0.89% | 0.80% | 0.80% |
 COSTCostco Wholesale Corporation COM | 0.79% | 0.70% | 0.70% |
 MAMasterCard Incorporated CL A | 0.73% | 0.64% | 0.64% |
 NFLXNetflix, Inc. COM | 0.73% | 0.64% | 0.64% |
 CVXChevron Corp. COM | 0.69% | 0.61% | 0.61% |
 ABBVAbbVie Inc. COM | 0.69% | 0.61% | 0.61% |
 MUMicron Technology Inc. COM | 0.68% | 0.60% | 0.60% |
 PGThe Procter & Gamble Co. COM | 0.60% | 0.53% | 0.53% |
 PLTRPalantir Technologies, Inc., Class A | 0.60% | 0.53% | 0.53% |
 AMDAdvanced Micro Devices Inc. COM | 0.59% | 0.52% | 0.52% |
Showing the top 250 of 503 shared holdings by overlap weight.
Frequently Asked Questions
How much do VOO and ITOT overlap?
VOO and ITOT overlap by 88.2% of portfolio weight. They share 503 holdings (VOO holds 504 positions and ITOT holds 2487), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VOO and ITOT?
The two portfolios are 88.2% 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 VOO and ITOT?
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 VOO own that ITOT doesn't?
1 positions (0.0% of VOO) are unique to VOO, led by ABIOMED INC-CVR. In the other direction, 1984 positions (11.5% of ITOT) are unique to ITOT.