ITA vs VOO: Holdings Overlap
ITAiShares U.S. Aerospace & Defense ETF
iShares · 44 holdings · $14.8B · as of 2026-03-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
How similar are ITA and VOO?
iShares U.S. Aerospace & Defense ETF (ITA, by iShares) holds 44 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 12 holdings in common, and by portfolio weight the two funds are 2.3% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 12ITA holds 44 · VOO holds 504
- Weight in Shared Holdings
- ITA 77%·VOO 2%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 ITA
32 of 44 positions (22.5% of the fund) are not held by VOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | ITA | VOO |
|---|---|---|
| Industrials | 99.8% | 9.0% |
| Information Technology | 0.0% | 32.7% |
| Financials | 0.0% | 12.4% |
| Communication Services | 0.0% | 10.5% |
| Consumer Discretionary | 0.1% | 9.9% |
| Other Sectors | 0.0% | 25.3% |
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 |
|---|---|---|---|---|---|---|---|
| ITA | +2.3% | +16.9% | +28.0% | +29.8% | +19.2% | +15.5% | 0.42% |
| 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 ITA vs VOO →
Shared Holdings(12)
The top 10 shared positions account for 98% of the overlap, led by GE, RTX and BA.
 GEGeneral Electric Co. | 19.03% | 0.53% | 0.53% |
|---|---|---|---|
 RTXRTX Corp. COM | 16.55% | 0.46% | 0.46% |
 BABoeing Co. (The) | 8.91% | 0.28% | 0.28% |
 LMTLockheed Martin Corporation COM | 4.58% | 0.22% | 0.22% |
 HWMHowmet Aerospace Inc COM | 4.50% | 0.17% | 0.17% |
 NOCNorthrop Grumman Corporation COM | 4.58% | 0.16% | 0.16% |
 GDGeneral Dynamics Corporation COM | 4.77% | 0.16% | 0.16% |
 TDGTransdigm Group Inc. COM | 4.53% | 0.12% | 0.12% |
 LHXL3 Harris Technologies Inc COM | 4.66% | 0.12% | 0.12% |
 AXONAxon Enterprise Inc COM | 2.83% | 0.06% | 0.06% |
 TXTTextron Inc. COM | 1.29% | 0.03% | 0.03% |
 HIIHuntington Ingalls Industries, Inc. COM | 1.26% | 0.03% | 0.03% |
Frequently Asked Questions
How much do ITA and VOO overlap?
ITA and VOO overlap by 2.3% of portfolio weight. They share 12 holdings (ITA holds 44 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ITA and VOO?
The two portfolios are 2.3% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of ITA and VOO?
The largest positions held by both funds are GE, RTX, BA, LMT and HWM. Together the top 10 shared positions account for 98% of the total overlap.
What does ITA own that VOO doesn't?
32 positions (22.5% of ITA) are unique to ITA, led by RKLB, FTAI and CW. In the other direction, 492 positions (97.5% of VOO) are unique to VOO.