IFRA vs VOO: Holdings Overlap
IFRAiShares U.S. Infrastructure ETF
iShares · 162 holdings · $4.6B · as of 2026-03-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
How similar are IFRA and VOO?
iShares U.S. Infrastructure ETF (IFRA, by iShares) holds 162 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 49 holdings in common, and by portfolio weight the two funds are 4.8% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 4.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 49IFRA holds 162 · VOO holds 504
- Weight in Shared Holdings
- IFRA 76%·VOO 5%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 IFRA
113 of 162 positions (24.2% of the fund) are not held by VOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IFRA | VOO |
|---|---|---|
| Utilities | 41.4% | 2.5% |
| Industrials | 35.2% | 9.0% |
| Information Technology | 0.0% | 32.7% |
| Materials | 13.6% | 2.1% |
| Financials | 0.0% | 12.4% |
| Other Sectors | 8.8% | 41.0% |
| Unclassified | 0.9% | 0.0% |
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. “Unclassified” is weight we could not classify (1% of IFRA, 0% of VOO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IFRA | -1.1% | +17.1% | +22.3% | +17.8% | +13.3% | — | 1.59% |
| 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 IFRA vs VOO →
Shared Holdings(49)
The top 10 shared positions account for 48% of the overlap, led by CAT, NEE and UNP.
 CATCaterpillar Inc COM | 4.20% | 0.59% | 0.59% |
|---|---|---|---|
 NEENextEra Energy Inc COM | 4.12% | 0.35% | 0.35% |
 UNPUnion Pacific Corporation COM | 3.85% | 0.26% | 0.26% |
 SOSouthern Co. (The) | 2.92% | 0.19% | 0.19% |
 DUKDuke Energy Corp COM NEW | 2.75% | 0.18% | 0.18% |
 WMBWilliams Companies Inc. (The) COM | 2.39% | 0.16% | 0.16% |
 CEGConstellation Energy Corp. COM | 2.53% | 0.16% | 0.16% |
 PWRQuanta Services, Inc. COM | 3.41% | 0.15% | 0.15% |
 CSXCSX Corporation COM | 3.20% | 0.14% | 0.14% |
 AEPAmerican Electric Power Co, Inc. COM | 1.91% | 0.13% | 0.13% |
 CRHCRH plc | 2.94% | 0.13% | 0.13% |
 KMIKinder Morgan, Inc. COM | 1.76% | 0.12% | 0.12% |
 NSCNorfolk Southern Corporation COM | 2.71% | 0.12% | 0.12% |
 SRESempra COM | 1.72% | 0.11% | 0.11% |
 OKEOneok Inc. COM | 1.54% | 0.10% | 0.10% |
 DDominion Energy Inc COM | 1.47% | 0.09% | 0.09% |
 ETREntergy Corporation COM | 1.37% | 0.09% | 0.09% |
 EXCExelon Corp. COM | 1.36% | 0.09% | 0.09% |
 FIXComfort Systems USA Inc. COM | 2.01% | 0.09% | 0.09% |
 VSTVistra Corp. COMMON STOCK | 1.36% | 0.09% | 0.09% |
 XELXcel Energy Inc COM | 1.34% | 0.08% | 0.08% |
 URIUnited Rentals, Inc. COM | 1.92% | 0.08% | 0.08% |
 EDConsolidated Edison, Inc. COM | 1.10% | 0.07% | 0.07% |
 PEGPublic Service Enterprise Group Incorporated COM | 1.09% | 0.07% | 0.07% |
 NUENucor Corporation COM | 1.61% | 0.07% | 0.07% |
Frequently Asked Questions
How much do IFRA and VOO overlap?
IFRA and VOO overlap by 4.8% of portfolio weight. They share 49 holdings (IFRA holds 162 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IFRA and VOO?
The two portfolios are 4.8% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IFRA and VOO?
The largest positions held by both funds are CAT, NEE, UNP, SO and DUK. Together the top 10 shared positions account for 48% of the total overlap.
What does IFRA own that VOO doesn't?
113 positions (24.2% of IFRA) are unique to IFRA, led by TRP, AMRZ and ATI. In the other direction, 455 positions (95.0% of VOO) are unique to VOO.