Data as of Sep 4, 2026. Both funds on the fields they both publish, from the same sources.
NASA vs VTI
Tema Space Innovators ETF and Vanguard Total Stock Market Index Fund.
What they hold in common
By the books each fund has filed, NASA and VTI hold 0% of their money in the same securities at the same weight.
| Holding | NASA | VTI |
|---|---|---|
| Rocket Lab Corp | 12.12% | 0.08% |
| AST SpaceMobile Inc | 6.19% | 0.04% |
| EchoStar Corp | 2.39% | 0.02% |
| Viasat Inc | 4.05% | 0.02% |
| Planet Labs PBC | 7.32% | 0.01% |
| Iridium Communications Inc | 2.89% | 0.01% |
| nLight Inc | 2.37% | 0.01% |
| Intuitive Machines Inc | 7.17% | 0.00% |
| Redwire Corp | 0.84% | 0.00% |
| Firefly Aerospace Inc | 5.42% | 0.00% |
| Vishay Precision Group Inc | 1.95% | 0.00% |
| Voyager Technologies Inc | 2.92% | 0.00% |
| Only in NASA | Only in VTI |
|---|---|
| SpaceX SPV Exposure (Preferred) 6.47% | NVIDIA Corp 6.37% |
| 5N Plus Inc 4.08% | Apple Inc 5.88% |
| MDA Space Ltd 3.63% | Microsoft Corp 3.84% |
| Astroscale Holdings Inc 3.31% | Amazon.com Inc 3.19% |
| Filtronic PLC 3.03% | Alphabet Inc 2.90% |
| QPS Holdings Inc 2.37% | Broadcom Inc 2.48% |
| Universal Microwave Technology 2.30% | Alphabet Inc 2.29% |
| SKY Perfect JSAT Corp 1.69% | Micron Technology Inc 1.80% |
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 and May 31, 2026.
| NASA Tema Space Innovators ETF | VTI Vanguard Total Stock Market Index Fund | |
|---|---|---|
| Where it sits | Themes desk | Core fund |
| Issuer | Tema | Vanguard |
| What it is | Space | US total market |
| Total return, 1 year | −6.6% | +20.0% |
| S&P 500 over the same days | +18.7% | +20.0% |
| Gap to the S&P 500 | −25.3 pts | +0.0 pts |
| Expense ratio | 0.75% | 0.03% |
| Already in the S&P 500 | 2.4% | 88.3% |
| Holdings | 37 | 3531 |
NASA in plain words
By weight, 2% of NASA's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 61% of the fund across 37 positions, as filed for May 31, 2026. Over the year to Sep 4, 2026 the fund returned −6.6% with distributions reinvested against +18.7% for the S&P 500, so a holder was behind by 25.3 pts. It sits 43.9% below its all-time high of May 27, 2026.
VTI in plain words
VTI is a index equity fund tracking US total market. Over the year to Sep 4, 2026 it returned +20.0% 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, 88% of the fund by weight is stocks the S&P 500 also holds, across 3531 positions, with the top ten at 32.1%.
Questions people ask
- Which is cheaper, NASA or VTI?
- NASA charges 0.75% a year and VTI charges 0.03%, so VTI is cheaper. Fees come from each fund's prospectus.
- How much do NASA and VTI overlap with the S&P 500?
- By their latest filed holdings, 2% of NASA and 88% of VTI by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
- Are NASA and VTI the same kind of fund?
- No. NASA is a thematic ETF and VTI is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.
Other comparisons
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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, NASA against VTI, data as of Sep 4, 2026. https://etfiq.com/compare/any/NASA-VTI.html Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources