Is there a quantum computing ETF?
Yes.
ETFIQ covers 4 quantum computing ETFs as of Oct 20, 2026. The largest is QTUM at $5.2bn. The cheapest is CQTM at 0.35%.
How much of a quantum computing fund is already in the S&P 500 decides how much of it is new exposure. Across these 4 funds the median is 37.4% of the weight. The rest is what you are buying that an index fund does not already hold.
Concentration is the other thing to read. The median quantum computing ETF here holds 39.7% of its weight in its top ten positions. That is what a theme fund does: it buys a shortlist, not a market.
ETFIQ files a fund under a theme editorially, from what the fund holds rather than from its name, and every figure on this page is the one its quantum computing hub prints.
On ETFIQ today
| Ticker | Fund | Issuer | Net assets | Fee | In the S&P 500 |
|---|---|---|---|---|---|
| QTUM | Defiance Quantum ETF | Defiance | $5.2bn | 0.40% | 37.4% |
| WQTM | WisdomTree Quantum Computing Fund | WisdomTree | $329m | 0.45% | 38.5% |
| QTUP | Defiance Long Pure Quantum ETF | Defiance | $17m | 0.77% | not published |
| CQTM | Corgi Quantum Computing ETF | Corgi | $13m | 0.35% | 16.6% |
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ETFIQ, Is there a quantum computing ETF?, data as of Oct 20, 2026. https://etfiq.com/questions/is-there-a-quantum-etf
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