Data as of .
EUV vs PSI: which is really different?
EUV and PSI hold 27% of their weight in the same names.
ETFIQ Off-Index Score: EUV scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 379 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
27% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, EUV and PSI hold 27% of their money in the same securities at the same weight.
| Holding | EUV | PSI |
|---|---|---|
| KLA CORP | 4.63% | 4.70% |
| Applied Materials Inc | 5.81% | 4.51% |
| Lam Research Corp | 5.78% | 4.46% |
| MACOM Technology Solutions Holdings Inc | 2.89% | 2.75% |
| Entegris Inc | 2.73% | 2.72% |
| Onto Innovation Inc | 2.30% | 2.40% |
| FormFactor Inc | 1.75% | 2.92% |
| AXT Inc | 1.71% | 2.76% |
| Ultra Clean Holdings Inc | 1.48% | 2.56% |
| Tower Semiconductor Ltd | 0.78% | 2.79% |
| Only in EUV | Only in PSI |
|---|---|
| Taiwan Semiconductor Manufacturing Co Lt 11.79% | Intel Corp 6.04% |
| ASML Holding NV 9.97% | Advanced Micro Devices Inc 5.69% |
| Lumentum Holdings Inc 4.87% | Micron Technology Inc 5.30% |
| Corning Inc 4.58% | Texas Instruments Inc 4.99% |
| Coherent Corp 3.87% | Analog Devices Inc 4.89% |
| MARVELL TECHNOLOGY INC 3.83% | Semtech Corp 3.85% |
| Ciena Corp 3.04% | Cohu Inc 3.03% |
| Credo Technology Group Holding Ltd 2.61% | Amkor Technology Inc 2.75% |
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 18, 2026 and Sep 19, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| EUV | PSI | EUV | PSI | EUV | PSI | |
| 3 months | −21.7% | −21.8% | −24.0 pts | −24.0 pts | −19.2 pts | −19.3 pts |
| 6 months | not published | +47.3% | not published | +29.3 pts | not published | +23.1 pts |
| 1 year | not published | +96.1% | not published | +79.5 pts | not published | +74.3 pts |
| 3 years | not published | +225.9% | not published | +147.5 pts | not published | +127.8 pts |
| Since launch | −10.9% | +3200.3% | −15.2 pts | +2396.7 pts | −14.7 pts | +1510.0 pts |
| EUV Corgi Lithography & Semiconductor Photonics ETF Holds 40 stocks in semiconductors, 38% of its weight in S&P 500 companies | PSI Invesco Semiconductors ETF Holds 33 stocks in semiconductors, 48% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Corgi | Invesco |
| Theme | Semiconductors | Semiconductors |
| In the S&P 500 | 37.5% | 48.5% |
| Active share vs the S&P 500 | 96.6% | 92.2% |
| In the Nasdaq-100 | 34.9% | 43.2% |
| Holdings | 40 | 33 |
| Top ten, share of the fund | 58.2% | 47.5% |
| Expense ratio | not published | 0.55% |
| Fee for the differing part | not published | 0.60% |
| Total return, 1 year | −10.9% (since launch on May 6, 2026) | +96.1% |
| vs the S&P 500 | −15.2 pts | +79.5 pts |
| vs the Nasdaq-100 | −14.7 pts | +74.3 pts |
| Below its high | −26.2% | −25.8% |
| Net assets | $419m | $2.7bn |
EUV in plain words
By weight, 38% of EUV's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 97%. The top ten holdings are 58% of the fund across 40 positions, as published by its issuer for Sep 18, 2026. Since it launched on May 6, 2026 the fund returned −10.9% with distributions reinvested against +4.3% for the S&P 500, so a holder was behind by 15.2 pts. It sits 26.2% below its all-time high of Jun 30, 2026.
PSI in plain words
By weight, 48% of PSI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 92%. The top ten holdings are 48% of the fund across 33 positions, as published by its issuer for Sep 19, 2026. Over the year to Sep 18, 2026 the fund returned +96.1% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 79.5 pts. It sits 25.8% below its all-time high of Jun 30, 2026.
Questions people ask
- Do EUV and PSI hold the same stocks?
- By their latest filings, 27% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, EUV or PSI?
- EUV has 38% of its weight in S&P 500 names and PSI has 48%, so EUV differs more from the index.
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, EUV against PSI, data as of Sep 18, 2026. https://etfiq.com/compare/themes/euv-vs-psi Free to use with attribution; the underlying files are at Open data.