Data as of . Every figure is the themes desk's own, on published data.
QTUM vs TAN
0% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, QTUM and TAN hold 0% of their money in the same securities at the same weight.
| Only in QTUM | Only in TAN |
|---|---|
| Arqit Quantum Inc 2.43% | First Solar, Inc. 11.74% |
| Horizon Quantum Holdings LTD 2.40% | Nextpower Inc. 9.81% |
| Quantinuum Inc 1.58% | Enphase Energy, Inc. 8.75% |
| Astera Labs Inc 1.56% | Enlight Renewable Energy Ltd. 7.58% |
| Applied Materials Inc 1.56% | SolarEdge Technologies, Inc. 6.32% |
| KLA Corp 1.51% | Doral Group Renewable Energy Resources L 5.09% |
| MKS Inc 1.51% | Sunrun Inc. 4.83% |
| Onto Innovation Inc 1.50% | O.Y. Nofar Energy Ltd. 4.21% |
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.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| QTUM | TAN | QTUM | TAN | QTUM | TAN | |
| 3 months | −3.0% | −25.0% | −7.7 pts | −29.7 pts | −5.1 pts | −27.1 pts |
| 6 months | +35.5% | −9.8% | +20.3 pts | −25.0 pts | +15.3 pts | −30.0 pts |
| 1 year | +58.6% | +14.3% | +38.7 pts | −5.6 pts | +33.0 pts | −11.3 pts |
| 3 years | +196.2% | −16.7% | +118.3 pts | −94.7 pts | +102.8 pts | −110.2 pts |
| Since launch | +538.2% | −38.6% | +337.0 pts | −850.0 pts | +225.3 pts | −1722.7 pts |
| QTUM Defiance Quantum ETF | TAN Invesco Solar ETF | |
|---|---|---|
| Issuer | Defiance | Invesco |
| Theme | Quantum computing | Clean energy |
| In the S&P 500 | 35.6% | 11.7% |
| Active share vs the S&P 500 | 83.5% | 100.0% |
| In the Nasdaq-100 | 27.8% | 0.0% |
| Holdings | 86 | 31 |
| Top ten, share of the fund | 17.0% | 65.2% |
| Expense ratio | 0.40% | 0.70% |
| Fee for the differing part | 0.48% | 0.70% |
| Total return, 1 year | +58.6% | +14.3% |
| vs the S&P 500 | +38.7 pts | −5.6 pts |
| vs the Nasdaq-100 | +33.0 pts | −11.3 pts |
| Below its high | −12.2% | −60.4% |
QTUM in plain words
By weight, 36% of QTUM's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 84%. The top ten holdings are 17% of the fund across 86 positions, as filed for Jun 30, 2026. Over the year to Sep 4, 2026 the fund returned +58.6% with distributions reinvested against +20.0% for the S&P 500, so a holder was ahead by 38.7 pts. It sits 12.2% below its all-time high of Jun 2, 2026.
TAN in plain words
By weight, 12% of TAN'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 65% of the fund across 31 positions, as filed for May 31, 2026. Over the year to Sep 4, 2026 the fund returned +14.3% with distributions reinvested against +20.0% for the S&P 500, so a holder was behind by 5.6 pts. It sits 60.4% below its all-time high of Feb 9, 2021.
Questions people ask
- Do QTUM and TAN hold the same stocks?
- By their latest filings, 0% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, QTUM or TAN?
- QTUM has 36% of its weight in S&P 500 names and TAN has 12%, so TAN differs more from the index.
- Which is cheaper, QTUM or TAN?
- QTUM charges 0.40% a year and TAN charges 0.70%, so QTUM is cheaper. Fees come from each fund's prospectus.
Other comparisons
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, QTUM against TAN, data as of Sep 4, 2026. https://etfiq.com/compare/themes/QTUM-TAN.html Free to use with attribution; the underlying files are at Open data.