Data as of .
CHAT vs EPAI: which is really different?
CHAT and EPAI hold 8% of their weight in the same names.
ETFIQ Off-Index Score: EPAI 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
8% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, CHAT and EPAI hold 8% of their money in the same securities at the same weight.
| Holding | CHAT | EPAI |
|---|---|---|
| ASML Holding NV | 3.27% | 3.22% |
| Vertiv Holdings Co | 2.12% | 4.76% |
| Only in CHAT | Only in EPAI |
|---|---|
| NVIDIA Corp 6.92% | Teradyne Inc 4.25% |
| Alphabet Inc 5.69% | FormFactor Inc 3.98% |
| SK hynix Inc 4.40% | MasTec Inc 3.82% |
| Microsoft Corp 3.72% | Applied Materials Inc 3.65% |
| Amazon.com Inc 3.42% | Monolithic Power Systems Inc 3.61% |
| Advanced Micro Devices Inc 3.14% | Taiwan Semiconductor Manufacturing Co Lt 3.61% |
| Micron Technology Inc 3.09% | Everus Construction Group Inc 3.48% |
| Nebius Group NV 3.02% | Entegris Inc 3.46% |
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 Apr 30, 2026 and Sep 18, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| CHAT | EPAI | CHAT | EPAI | CHAT | EPAI | |
| 3 months | −12.2% | −13.1% | −14.5 pts | −15.3 pts | −9.8 pts | −10.6 pts |
| 6 months | +43.6% | +19.2% | +25.6 pts | +1.2 pts | +19.4 pts | −5.0 pts |
| 1 year | +52.0% | not published | +35.5 pts | not published | +30.3 pts | not published |
| 3 years | +237.0% | not published | +158.6 pts | not published | +138.8 pts | not published |
| Since launch | +256.5% | +33.6% | +166.8 pts | +19.8 pts | +138.6 pts | +14.8 pts |
| CHAT Roundhill Generative AI & Technology ETF Holds 47 stocks in artificial intelligence, 48% of its weight in S&P 500 companies | EPAI Harbor AI Inflection Strategy ETF Holds 37 stocks in artificial intelligence, 58% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Roundhill | Harbor |
| Theme | Artificial intelligence | Artificial intelligence |
| In the S&P 500 | 47.9% | 58.0% |
| Active share vs the S&P 500 | 72.1% | 95.5% |
| In the Nasdaq-100 | 44.1% | 19.0% |
| Holdings | 47 | 37 |
| Top ten, share of the fund | 39.5% | 37.9% |
| Expense ratio | 0.75% | 0.88% |
| Fee for the differing part | 1.04% | 0.92% |
| Total return, 1 year | +52.0% | +33.6% (since launch on Dec 18, 2025) |
| vs the S&P 500 | +35.5 pts | +19.8 pts |
| vs the Nasdaq-100 | +30.3 pts | +14.8 pts |
| Below its high | −13.7% | −16.8% |
| Net assets | $1.8bn | $5m |
CHAT in plain words
By weight, 48% of CHAT's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 72%. The top ten holdings are 40% of the fund across 47 positions, as published by its issuer for Sep 18, 2026. Over the year to Sep 18, 2026 the fund returned +52.0% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 35.5 pts. It sits 13.7% below its all-time high of Jun 22, 2026.
EPAI in plain words
By weight, 58% of EPAI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 96%. The top ten holdings are 38% of the fund across 37 positions, as filed for Apr 30, 2026. Since it launched on Dec 18, 2025 the fund returned +33.6% with distributions reinvested against +13.8% for the S&P 500, so a holder was ahead by 19.8 pts. It sits 16.8% below its all-time high of Jun 30, 2026.
Questions people ask
- Do CHAT and EPAI hold the same stocks?
- By their latest filings, 8% 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, CHAT or EPAI?
- CHAT has 48% of its weight in S&P 500 names and EPAI has 58%, so EPAI differs more from the index.
- Which is cheaper, CHAT or EPAI?
- CHAT charges 0.75% a year and EPAI charges 0.88%, so CHAT 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, CHAT against EPAI, data as of Sep 18, 2026. https://etfiq.com/compare/themes/chat-vs-epai Free to use with attribution; the underlying files are at Open data.