Data as of Sep 4, 2026. Both funds on the fields they both publish, from the same sources.
ITA vs VOO
iShares U.S. Aerospace & Defense ETF and Vanguard 500 Index Fund.
What they hold in common
By the books each fund has filed, ITA and VOO hold 2% of their money in the same securities at the same weight.
| Holding | ITA | VOO |
|---|---|---|
| GENERAL ELECTRIC COMPANY | 22.63% | 0.61% |
| RTX CORPORATION | 14.83% | 0.40% |
| THE BOEING COMPANY | 8.90% | 0.27% |
| HOWMET AEROSPACE INC. | 4.50% | 0.17% |
| LOCKHEED MARTIN CORPORATION | 4.05% | 0.16% |
| GENERAL DYNAMICS CORPORATION | 4.34% | 0.14% |
| TRANSDIGM GROUP INCORPORATED | 4.59% | 0.12% |
| Northrop Grumman Corporation | 3.92% | 0.11% |
| L3HARRIS TECHNOLOGIES, INC. | 3.80% | 0.08% |
| AXON ENTERPRISE, INC. | 3.17% | 0.07% |
| TEXTRON INC. | 1.12% | 0.03% |
| HUNTINGTON INGALLS INDUSTRIES, INC. | 0.77% | 0.02% |
| Only in ITA | Only in VOO |
|---|---|
| ROCKET LAB CORPORATION 3.63% | NVIDIA Corp 7.53% |
| CARPENTER TECHNOLOGY CORPORATION 2.15% | Apple Inc 6.61% |
| CURTISS-WRIGHT CORPORATION 1.97% | Microsoft Corp 4.31% |
| FTAI Aviation Ltd. 1.95% | Amazon.com Inc 3.63% |
| ATI INC 1.89% | Alphabet Inc 3.26% |
| WOODWARD, INC. 1.78% | Broadcom Inc 2.78% |
| HEICO CORPORATION 1.41% | Alphabet Inc 2.60% |
| BWX TECHNOLOGIES, INC. 1.25% | Micron Technology Inc 2.02% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings as filed for Jun 30, 2026.
| ITA iShares U.S. Aerospace & Defense ETF | VOO Vanguard 500 Index Fund | |
|---|---|---|
| Where it sits | Themes desk | Core fund |
| Issuer | iShares | Vanguard |
| What it is | Defense | S&P 500 |
| Total return, 1 year | +14.2% | +20.1% |
| S&P 500 over the same days | +20.0% | +20.0% |
| Gap to the S&P 500 | −5.7 pts | +0.1 pts |
| Expense ratio | not published | 0.03% |
| Already in the S&P 500 | 76.6% | 100.0% |
| Holdings | 49 | 506 |
ITA in plain words
By weight, 77% of ITA's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 98%. The top ten holdings are 75% of the fund across 49 positions, as filed for Jun 30, 2026. Over the year to Sep 4, 2026 the fund returned +14.2% with distributions reinvested against +20.0% for the S&P 500, so a holder was behind by 5.7 pts. It sits 10.9% below its all-time high of Aug 14, 2026.
VOO in plain words
VOO is a index equity fund tracking S&P 500. Over the year to Sep 4, 2026 it returned +20.1% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 36.5%.
Questions people ask
- Which returned more over the last year, ITA or VOO?
- In the year to Sep 4, 2026, with distributions reinvested, ITA returned +14.2% and VOO returned +20.1%, so VOO returned more. One year is one year; the longer windows are in the table.
- How much do ITA and VOO overlap with the S&P 500?
- By their latest filed holdings, 77% of ITA and 100% of VOO by weight is stocks the S&P 500 already holds. Between the two funds, 2% of their books are the same securities at the same weight.
- Are ITA and VOO the same kind of fund?
- No. ITA is a thematic ETF and VOO is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, ITA against VOO, data as of Sep 4, 2026. https://etfiq.com/compare/any/ITA-VOO.html Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources