Quantum computing ETFs: what each one holds
See every quantum computing ETF by what it holds, not by its name. Funds that hold the companies building quantum computers, and the hardware, software and services around them. 4 funds, largest first. Updated Oct 21, 2026. The typical fund carries 37% of its weight in S&P 500 names, the 19th most of the 53 themes with filed books.
The short answers
What these funds actually own
Between them the 4 funds' ten largest holdings name 26 companies, of which 9 appear in more than one. IONQ INC is among the ten largest of 3 of them, at an average of 11.0% of the fund.
Quantum computing ETFs, the companies their ten largest holdings name. The 15 most widely held of 26. Source: each fund's latest SEC filing or its issuer’s own daily holdings file, read by ETFIQ.
How this is counted
Each row counts the ten largest holdings of each fund, so a fund missing from a row may still hold that company lower down. Weights are of the funds that name it, not of the theme.
Share of each fund's weight in S&P 500 companies. Above half, the fund is mostly the S&P 500.
The 4 largest quantum computing ETFs
ETFIQ covers 4 quantum computing ETFs. The largest are QTUM ($5.3bn), WQTM ($329m) and QTUP ($17m); fees run 0.35% to 0.77%, as of .
Every quantum computing ETF, largest first
Click a column to sortPoints (pts) are percentage points.
| Ticker | Fund | Issuer | Net assets ↓ | In the S&P 500 | Active share | Total return 1Y | vs its benchmark 1Y | Fee |
|---|---|---|---|---|---|---|---|---|
| QTUM | Defiance Quantum ETF → | Defiance | $5.3bn | 37.2% | 82.1% | +30.0% | not measured | 0.40% |
| WQTM | WisdomTree Quantum Computing Fund → | WisdomTree | $329m | 38.5% | 83.7% | +1.4% | −14.6 pts vs ACWI | 0.45% |
| QTUP | Defiance Long Pure Quantum ETF → | Defiance | $17m | not published | not published | first traded 133 days ago | · | 0.77% |
| CQTM | Corgi Quantum Computing ETF → | Corgi | $15m | 16.2% | 96.2% | first traded 168 days ago | · | 0.35% |
How much of each pair is the same fund
The closest pair is CQTM and QTUP, which hold 47% of their weight in the same companies. The furthest apart is QTUM and QTUP at 7%. The middle pair of the 6 is 28%.
Quantum computing ETFs, the share of each pair’s weight held in the same companies. Read across or down; the figure is the same either way. Cells are shaded against the closest pair here, 47%. Source: each fund’s own filed or daily holdings, read by ETFIQ.
How to read the grid
Weight overlap adds the smaller of the two weights for every company both funds hold. Funds with a cut-short book are left out, not compared short.
What each fund holds alone
The largest holding no other fund in the grid holds, and how much of the fund is in names none of the others own.
Quantum computing ETFs, the largest holding no other fund in the grid holds. Source: ETFIQ.
Questions people ask
- How many quantum computing ETFs are there?
- ETFIQ covers 4 US listed quantum computing ETFs as of Oct 21, 2026. That is every one it can measure from the fund’s own published holdings.
- What is the largest quantum computing ETF?
- QTUM, Defiance Quantum ETF, at $5.3bn in net assets as of Oct 20, 2026, the largest of the 4 quantum computing ETFs with a published size.
- What is the cheapest quantum computing ETF?
- CQTM, Corgi Quantum Computing ETF, at 0.35% a year by its prospectus filed May 14, 2026, the lowest fee of the 4 quantum computing ETFs that publish one.
- Which quantum computing ETF has performed best over the past year?
- QTUM, Defiance Quantum ETF, at +30.0% total return over the year to Oct 21, 2026, the highest of the 2 quantum computing ETFs with a full year of trading behind them. Past returns do not predict future ones.
- What do quantum computing ETFs hold?
- Funds that hold the companies building quantum computers, and the hardware, software and services around them. Between them the 4 quantum computing ETFs ETFIQ can read name 26 companies in their ten largest holdings, by holdings dated Jun 30, 2026 to Oct 21, 2026, most widely IONQ INC, which is among the ten largest of 3 of them.
- Do quantum computing ETFs hold the same companies?
- It depends which two. Across the 6 pairs of the 4 quantum computing ETFs with a full published book, by holdings dated Jun 30, 2026 to Oct 21, 2026, CQTM and QTUP hold 47% of their weight in the same companies, QTUM and QTUP hold 7%, and the middle pair holds 28%. Two funds sold on one theme are not the same fund.
What the issuers say about this theme
About these links
The issuers behind these quantum computing funds publish their own work on this theme. These are their pages and words, not ETFIQ’s. A fund company writing about a theme it sells is making a case.
Issuer material on this theme. Links leave ETFIQ. Source: each issuer’s own site.
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<figure style="margin:0;max-width:640px">
<a href="https://etfiq.com/themes/quantum"><img src="https://etfiq.com/assistant/api/embed/theme/quantum.svg" alt="Quantum computing ETFs, one-year total return to Oct 21, 2026: QTUM +30.0%, WQTM +1.4%." width="640" style="max-width:100%;height:auto"></a>
<figcaption style="font:13px/1.5 sans-serif">Quantum computing ETFs, one-year total return to Oct 21, 2026: QTUM +30.0%, WQTM +1.4%. Data: <a href="https://etfiq.com/themes/quantum">ETFIQ</a></figcaption>
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ETFIQ, Quantum computing ETFs: what each one holds, data as of Oct 21, 2026. https://etfiq.com/themes/quantum
ETFIQ. (Oct 21, 2026). Quantum computing ETFs: what each one holds. Retrieved from https://etfiq.com/themes/quantum
[Quantum computing ETFs: what each one holds (ETFIQ, Oct 21, 2026)](https://etfiq.com/themes/quantum)
Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms. The underlying files are at Open data.