Data as of .
AIS vs CHAT: which is really different?
AIS and CHAT hold 32% of their weight in the same names, and AIS returned more over the year.
ETFIQ Off-Index Score: AIS 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
32% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, AIS and CHAT hold 32% of their money in the same securities at the same weight.
| Holding | AIS | CHAT |
|---|---|---|
| SK hynix Inc | 8.24% | 4.40% |
| Advanced Micro Devices Inc | 5.52% | 3.14% |
| Micron Technology Inc | 7.19% | 3.09% |
| Taiwan Semiconductor Manufacturing Co Ltd | 3.62% | 2.46% |
| Samsung Electronics Co Ltd | 2.13% | 2.49% |
| Vertiv Holdings Co | 3.22% | 2.12% |
| NVIDIA Corp | 2.02% | 6.92% |
| ASML Holding NV | 1.88% | 3.27% |
| Arista Networks Inc | 1.95% | 1.81% |
| Astera Labs Inc | 1.76% | 2.86% |
| ARM Holdings PLC | 1.71% | 2.63% |
| MARVELL TECHNOLOGY INC | 4.01% | 1.40% |
| Only in AIS | Only in CHAT |
|---|---|
| Semtech Corp 4.68% | Alphabet Inc 5.69% |
| Silicon Motion Technology Corp 3.15% | Microsoft Corp 3.72% |
| Foxconn Industrial Internet Co Ltd 2.67% | Amazon.com Inc 3.42% |
| GE Vernova Inc 2.60% | Nebius Group NV 3.02% |
| Seagate Technology Holdings PLC 2.44% | SoftBank Group Corp 2.78% |
| Corning Inc 1.99% | Meta Platforms Inc 2.36% |
| Vicor Corp 1.98% | CoreWeave Inc 2.27% |
| Tower Semiconductor Ltd 1.97% | Crowdstrike Holdings Inc 2.25% |
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 21, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| AIS | CHAT | AIS | CHAT | AIS | CHAT | |
| 3 months | −15.6% | −12.2% | −17.8 pts | −14.5 pts | −13.1 pts | −9.8 pts |
| 6 months | +67.5% | +43.6% | +49.5 pts | +25.6 pts | +43.3 pts | +19.4 pts |
| 1 year | +107.6% | +52.0% | +91.1 pts | +35.5 pts | +85.9 pts | +30.3 pts |
| 3 years | not published | +237.0% | not published | +158.6 pts | not published | +138.8 pts |
| Since launch | +188.0% | +256.5% | +159.0 pts | +166.8 pts | +147.2 pts | +138.6 pts |
| AIS VistaShares Artificial Intelligence Supercycle ETF Holds 60 stocks in artificial intelligence, 41% of its weight in S&P 500 companies | CHAT Roundhill Generative AI & Technology ETF Holds 47 stocks in artificial intelligence, 48% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | VistaShares | Roundhill |
| Theme | Artificial intelligence | Artificial intelligence |
| In the S&P 500 | 41.2% | 47.9% |
| Active share vs the S&P 500 | 88.9% | 72.1% |
| In the Nasdaq-100 | 32.8% | 44.1% |
| Holdings | 60 | 47 |
| Top ten, share of the fund | 45.6% | 39.5% |
| Expense ratio | 0.75% | 0.75% |
| Fee for the differing part | 0.84% | 1.04% |
| Total return, 1 year | +107.6% | +52.0% |
| vs the S&P 500 | +91.1 pts | +35.5 pts |
| vs the Nasdaq-100 | +85.9 pts | +30.3 pts |
| Below its high | −18.3% | −13.7% |
| Net assets | $1.0bn | $1.8bn |
AIS in plain words
By weight, 41% of AIS's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 89%. The top ten holdings are 46% of the fund across 60 positions, as published by its issuer for Sep 21, 2026. Over the year to Sep 18, 2026 the fund returned +107.6% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 91.1 pts. It sits 18.3% below its all-time high of Jun 22, 2026.
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.
Questions people ask
- Do AIS and CHAT hold the same stocks?
- By their latest filings, 32% 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, AIS or CHAT?
- AIS has 41% of its weight in S&P 500 names and CHAT has 48%, so AIS differs more from the index.
- Which is cheaper, AIS or CHAT?
- AIS charges 0.75% a year and CHAT charges 0.75%, so AIS 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, AIS against CHAT, data as of Sep 18, 2026. https://etfiq.com/compare/themes/ais-vs-chat Free to use with attribution; the underlying files are at Open data.