Data as of .
QTUM vs SMH: which is really different?
SMH holds 82.3% of its weight in S&P 500 companies and QTUM 34.8%.
ETFIQ Off-Index Score: QTUM scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 371 thematic ETFs with a holdings filing. It is a position in a set, not a rating, and neither end of it is a recommendation. All thematic ETFs ranked by it · How it is computed
What they hold in common
By the books each fund has filed, QTUM and SMH hold 0% of their money in the same securities at the same weight.
| Only in QTUM | Only in SMH |
|---|---|
| Arqit Quantum Inc 1.82% | Nvidia Corp 22.45% |
| Global Unichip Corp 1.82% | Taiwan Semiconductor Manufacturing Co L 9.78% |
| Horizon Quantum Holdings Ltd 1.81% | Broadcom Inc 5.91% |
| Cloudflare Inc 1.66% | Advanced Micro Devices Inc 5.74% |
| Elastic Nv 1.63% | Micron Technology Inc 5.65% |
| Snowflake Inc 1.63% | Asml Holding Nv 5.02% |
| Hewlett Packard Enterprise Co 1.62% | Intel Corp 4.34% |
| Nutanix Inc 1.58% | Lam Research Corp 4.29% |
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 dated Sep 10, 2026 and Sep 14, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| QTUM | SMH | QTUM | SMH | QTUM | SMH | |
| 3 months | −8.5% | −8.3% | −11.8 pts | −11.6 pts | −7.7 pts | −7.5 pts |
| 6 months | +35.3% | +46.8% | +19.3 pts | +30.8 pts | +14.6 pts | +26.1 pts |
| 1 year | +50.4% | +87.6% | +32.9 pts | +70.1 pts | +27.4 pts | +64.7 pts |
| 3 years | +204.4% | +285.8% | +126.5 pts | +207.9 pts | +109.3 pts | +190.7 pts |
| Since launch | +536.1% | +5026.7% | +337.3 pts | +4222.3 pts | +225.6 pts | +3352.8 pts |
| QTUM Defiance Quantum ETF Holds 89 stocks in quantum computing, 35% of its weight in S&P 500 companies | SMH VanEck Semiconductor ETF Holds 25 stocks in semiconductors, 82% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Defiance | VanEck |
| Theme | Quantum computing | Semiconductors |
| In the S&P 500 | 34.8% | 82.3% |
| Active share vs the S&P 500 | 82.6% | 80.6% |
| In the Nasdaq-100 | 27.2% | 80.2% |
| Holdings | 89 | 25 |
| Top ten, share of the fund | 16.6% | 71.7% |
| Expense ratio | 0.40% | 0.35% |
| Fee for the differing part | 0.48% | 0.43% |
| Total return, 1 year | +50.4% | +87.6% |
| vs the S&P 500 | +32.9 pts | +70.1 pts |
| vs the Nasdaq-100 | +27.4 pts | +64.7 pts |
| Below its high | −12.5% | −15.0% |
QTUM in plain words
By weight, 35% of QTUM's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 83%. The top ten holdings are 17% of the fund across 89 positions, as published by its issuer for Sep 14, 2026. Over the year to Sep 11, 2026 the fund returned +50.4% with distributions reinvested against +17.5% for the S&P 500, so a holder was ahead by 32.9 pts. It sits 12.5% below its all-time high of Jun 2, 2026.
SMH in plain words
By weight, 82% of SMH's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 81%. The top ten holdings are 72% of the fund across 25 positions, as published by its issuer for Sep 10, 2026. Over the year to Sep 11, 2026 the fund returned +87.6% with distributions reinvested against +17.5% for the S&P 500, so a holder was ahead by 70.1 pts. It sits 15.0% below its all-time high of Jun 22, 2026.
Questions people ask
- Which is more different from the S&P 500, QTUM or SMH?
- QTUM has 35% of its weight in S&P 500 names and SMH has 82%, so QTUM differs more from the index.
- Which is cheaper, QTUM or SMH?
- QTUM charges 0.40% a year and SMH charges 0.35%, so SMH 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 SMH, data as of Sep 11, 2026. https://etfiq.com/compare/themes/qtum-vs-smh Free to use with attribution; the underlying files are at Open data.