IGV vs VOO: Holdings Overlap
IGViShares Expanded Tech-Software Sector ETF
iShares · 112 holdings · $14.7B · as of 2026-03-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
How similar are IGV and VOO?
iShares Expanded Tech-Software Sector ETF (IGV, by iShares) holds 112 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 24 holdings in common, and by portfolio weight the two funds are 8.4% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 8.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 24IGV holds 112 · VOO holds 504
- Weight in Shared Holdings
- IGV 83%·VOO 8%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 IGV
88 of 112 positions (17.2% of the fund) are not held by VOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IGV | VOO |
|---|---|---|
| Information Technology | 90.6% | 32.7% |
| Financials | 0.2% | 12.4% |
| Communication Services | 8.2% | 10.5% |
| Consumer Discretionary | 0.2% | 9.9% |
| Health Care | 0.0% | 9.5% |
| Other Sectors | 0.2% | 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 |
|---|---|---|---|---|---|---|---|
| IGV | +9.1% | -2.8% | -6.3% | +13.8% | +4.6% | +16.7% | 0.02% |
| 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 IGV vs VOO →
Shared Holdings(24)
The top 10 shared positions account for 89% of the overlap, led by MSFT, PLTR and ORCL.
 MSFTMicrosoft Corp. COM | 8.36% | 4.91% | 4.91% |
|---|---|---|---|
 PLTRPalantir Technologies, Inc., Class A | 8.82% | 0.60% | 0.60% |
 ORCLOracle Corp. COM | 8.24% | 0.45% | 0.45% |
 CRMSalesforce Inc. COM | 7.40% | 0.31% | 0.31% |
 PANWPalo Alto Networks Inc COM | 5.48% | 0.23% | 0.23% |
 INTUIntuit Inc COM | 4.75% | 0.22% | 0.22% |
 NOWServicenow Inc COM | 4.38% | 0.20% | 0.20% |
 APPAppLovin Corp., Class A | 4.56% | 0.19% | 0.19% |
 ADBEAdobe Inc COM | 4.27% | 0.18% | 0.18% |
 CRWDCrowdstrike Holdings, Inc., Class A | 4.21% | 0.18% | 0.18% |
 SNPSSynopsys Inc COM | 3.25% | 0.14% | 0.14% |
 CDNSCadence Design Systems, Inc. COM | 3.24% | 0.14% | 0.14% |
 FTNTFortinet Inc COM | 2.21% | 0.09% | 0.09% |
 ADSKAutodesk Inc COM | 2.17% | 0.09% | 0.09% |
 EAElectronic Arts Inc. COM | 1.97% | 0.08% | 0.08% |
 DDOGDatadog, Inc., Class A | 1.66% | 0.07% | 0.07% |
 ROPRoper Technologies Inc COM | 1.61% | 0.07% | 0.07% |
 TTWOTake-Two Interactive Software Inc. COM | 1.47% | 0.06% | 0.06% |
 WDAYWorkday, Inc., Class A | 1.18% | 0.05% | 0.05% |
 FICOFair Isaac Corporation COM | 1.08% | 0.05% | 0.05% |
 PTCPTC Inc COM | 0.73% | 0.03% | 0.03% |
 TRMBTrimble Inc COM | 0.66% | 0.03% | 0.03% |
 TYLTyler Technologies Inc. COM | 0.63% | 0.03% | 0.03% |
 GENGen Digital Inc COM | 0.44% | 0.02% | 0.02% |
Frequently Asked Questions
How much do IGV and VOO overlap?
IGV and VOO overlap by 8.4% of portfolio weight. They share 24 holdings (IGV holds 112 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IGV and VOO?
The two portfolios are 8.4% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IGV and VOO?
The largest positions held by both funds are MSFT, PLTR, ORCL, CRM and PANW. Together the top 10 shared positions account for 89% of the total overlap.
What does IGV own that VOO doesn't?
88 positions (17.2% of IGV) are unique to IGV, led by MSTR, ZM and ZS. In the other direction, 480 positions (91.4% of VOO) are unique to VOO.