Data as of .
BAI vs CHAT: which is really different?
BAI and CHAT hold 40% of their weight in the same names, and CHAT returned more over the year.
ETFIQ Off-Index Score: BAI 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
40% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, BAI and CHAT hold 40% of their money in the same securities at the same weight.
| Holding | BAI | CHAT |
|---|---|---|
| NVIDIA | 5.31% | 6.92% |
| ADVANCED MICRO DEVICES | 5.20% | 3.14% |
| MICRON TECHNOLOGY | 6.62% | 3.09% |
| BROADCOM INC | 4.61% | 2.53% |
| ALPHABET CLASS A | 2.47% | 5.69% |
| LUMENTUM HOLDINGS | 2.84% | 2.33% |
| MICROSOFT | 2.09% | 3.72% |
| CROWDSTRIKE HOLDINGS CLASS A | 2.06% | 2.25% |
| AMAZON.COM INC | 1.99% | 3.42% |
| SNOWFLAKE | 2.97% | 1.93% |
| ARISTA NETWORKS | 2.23% | 1.81% |
| COREWEAVE CLASS A | 1.63% | 2.27% |
| Only in BAI | Only in CHAT |
|---|---|
| TAIWAN SEMICONDUCTOR MANUFACTURING 4.68% | SK hynix Inc 4.40% |
| LAM RESEARCH 3.85% | ASML Holding NV 3.27% |
| SPACE EXPLORATION TECHNOLOGIES COR 3.05% | Nebius Group NV 3.02% |
| SANDISK 2.59% | Astera Labs Inc 2.86% |
| WESTERN DIGITAL CORP 2.52% | SoftBank Group Corp 2.78% |
| ASIA VITAL COMPONENTS 2.45% | ARM Holdings PLC 2.63% |
| ELITE MATERIAL 2.43% | Coherent Corp 2.55% |
| TOWER SEMICONDUCTOR 2.08% | Samsung Electronics Co Ltd 2.49% |
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.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| BAI | CHAT | BAI | CHAT | BAI | CHAT | |
| 3 months | −15.2% | −12.2% | −17.4 pts | −14.5 pts | −12.7 pts | −9.8 pts |
| 6 months | +34.8% | +43.6% | +16.8 pts | +25.6 pts | +10.6 pts | +19.4 pts |
| 1 year | +32.2% | +52.0% | +15.7 pts | +35.5 pts | +10.4 pts | +30.3 pts |
| 3 years | not published | +237.0% | not published | +158.6 pts | not published | +138.8 pts |
| Since launch | +83.4% | +256.5% | +49.9 pts | +166.8 pts | +36.7 pts | +138.6 pts |
| BAI iShares A.I. Innovation and Tech Active ETF Holds 55 stocks in artificial intelligence, 56% 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 | iShares | Roundhill |
| Theme | Artificial intelligence | Artificial intelligence |
| In the S&P 500 | 55.6% | 47.9% |
| Active share vs the S&P 500 | 76.4% | 72.1% |
| In the Nasdaq-100 | 50.0% | 44.1% |
| Holdings | 55 | 47 |
| Top ten, share of the fund | 42.2% | 39.5% |
| Expense ratio | 0.55% | 0.75% |
| Fee for the differing part | 0.72% | 1.04% |
| Total return, 1 year | +32.2% | +52.0% |
| vs the S&P 500 | +15.7 pts | +35.5 pts |
| vs the Nasdaq-100 | +10.4 pts | +30.3 pts |
| Below its high | −16.8% | −13.7% |
| Net assets | $14.4bn | $1.8bn |
BAI in plain words
By weight, 56% of BAI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 76%. The top ten holdings are 42% of the fund across 55 positions, as published by its issuer for Sep 18, 2026. Over the year to Sep 18, 2026 the fund returned +32.2% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 15.7 pts. It sits 16.8% 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 BAI and CHAT hold the same stocks?
- By their latest filings, 40% 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, BAI or CHAT?
- BAI has 56% of its weight in S&P 500 names and CHAT has 48%, so BAI differs more from the index.
- Which is cheaper, BAI or CHAT?
- BAI charges 0.55% a year and CHAT charges 0.75%, so BAI 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, BAI against CHAT, data as of Sep 18, 2026. https://etfiq.com/compare/themes/bai-vs-chat Free to use with attribution; the underlying files are at Open data.