Data as of .
BAI vs WTAI: which is really different?
BAI and WTAI hold 46% of their weight in the same names, and WTAI 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
46% 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 WTAI hold 46% of their money in the same securities at the same weight.
| Holding | BAI | WTAI |
|---|---|---|
| MICRON TECHNOLOGY | 6.62% | 5.23% |
| NVIDIA | 5.31% | 3.76% |
| TAIWAN SEMICONDUCTOR MANUFACTURING | 4.68% | 3.04% |
| LAM RESEARCH | 3.85% | 2.67% |
| BROADCOM INC | 4.61% | 2.66% |
| SANDISK | 2.59% | 4.01% |
| ALPHABET CLASS A | 2.47% | 3.13% |
| MARVELL TECHNOLOGY | 2.48% | 2.30% |
| ADVANCED MICRO DEVICES | 5.20% | 2.29% |
| AMAZON.COM INC | 1.99% | 3.33% |
| SNOWFLAKE | 2.97% | 1.93% |
| LUMENTUM HOLDINGS | 2.84% | 1.90% |
| Only in BAI | Only in WTAI |
|---|---|
| SPACE EXPLORATION TECHNOLOGIES COR 3.05% | SAMSUNG ELECTRONICS CO LTD 4.37% |
| WESTERN DIGITAL CORP 2.52% | KIOXIA HOLDINGS CORP 3.98% |
| ASIA VITAL COMPONENTS 2.45% | SK SQUARE CO LTD 3.41% |
| ELITE MATERIAL 2.43% | META PLATFORMS INC 2.82% |
| ARISTA NETWORKS 2.23% | SK HYNIX INC 2.55% |
| MICROSOFT 2.09% | TERADYNE INC 2.09% |
| TOWER SEMICONDUCTOR 2.08% | ORACLE CORP 1.98% |
| UNIMICRON TECHNOLOGY 1.97% | GE VERNOVA INC 1.91% |
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 Jun 30, 2026 and Sep 18, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| BAI | WTAI | BAI | WTAI | BAI | WTAI | |
| 3 months | −15.2% | −11.4% | −17.4 pts | −13.6 pts | −12.7 pts | −8.9 pts |
| 6 months | +34.8% | +46.3% | +16.8 pts | +28.3 pts | +10.6 pts | +22.1 pts |
| 1 year | +32.2% | +49.7% | +15.7 pts | +33.2 pts | +10.4 pts | +28.0 pts |
| 3 years | not published | +142.4% | not published | +64.0 pts | not published | +44.3 pts |
| Since launch | +83.4% | +74.0% | +49.9 pts | −0.6 pts | +36.7 pts | −14.6 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 | WTAI WisdomTree Artificial Intelligence and Innovation Fund Holds 57 stocks in artificial intelligence, 65% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | iShares | WisdomTree |
| Theme | Artificial intelligence | Artificial intelligence |
| In the S&P 500 | 55.6% | 65.1% |
| Active share vs the S&P 500 | 76.4% | 71.4% |
| In the Nasdaq-100 | 50.0% | 51.7% |
| Holdings | 55 | 57 |
| Top ten, share of the fund | 42.2% | 37.1% |
| Expense ratio | 0.55% | 0.45% |
| Fee for the differing part | 0.72% | 0.63% |
| Total return, 1 year | +32.2% | +49.7% |
| vs the S&P 500 | +15.7 pts | +33.2 pts |
| vs the Nasdaq-100 | +10.4 pts | +28.0 pts |
| Below its high | −16.8% | −12.8% |
| Net assets | $14.4bn | $674m |
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.
WTAI in plain words
By weight, 65% of WTAI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 71%. The top ten holdings are 37% of the fund across 57 positions, as filed for Jun 30, 2026. Over the year to Sep 18, 2026 the fund returned +49.7% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 33.2 pts. It sits 12.8% below its all-time high of Jun 22, 2026.
Questions people ask
- Do BAI and WTAI hold the same stocks?
- By their latest filings, 46% 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 WTAI?
- BAI has 56% of its weight in S&P 500 names and WTAI has 65%, so BAI differs more from the index.
- Which is cheaper, BAI or WTAI?
- BAI charges 0.55% a year and WTAI charges 0.45%, so WTAI 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 WTAI, data as of Sep 18, 2026. https://etfiq.com/compare/themes/bai-vs-wtai Free to use with attribution; the underlying files are at Open data.