Data as of .
AIS vs TCAI: which is really different?
AIS and TCAI hold 22% of their weight in the same names, and AIS returned more over the year.
ETFIQ Off-Index Score: TCAI 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
22% 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 TCAI hold 22% of their money in the same securities at the same weight.
| Holding | AIS | TCAI |
|---|---|---|
| Micron Technology Inc | 7.19% | 7.64% |
| Vertiv Holdings Co | 3.22% | 4.48% |
| Seagate Technology Holdings PLC | 2.44% | 5.77% |
| Sandisk Corp | 1.91% | 3.47% |
| Arista Networks Inc | 1.95% | 1.71% |
| GE Vernova Inc | 2.60% | 1.12% |
| Western Digital Corp | 1.11% | 5.14% |
| Coherent Corp | 0.90% | 0.96% |
| Credo Technology Group Holding Ltd | 0.83% | 3.03% |
| Infineon Technologies AG | 0.63% | 1.93% |
| NVIDIA Corp | 2.02% | 0.59% |
| Celestica Inc | 0.47% | 0.43% |
| Only in AIS | Only in TCAI |
|---|---|
| SK hynix Inc 8.24% | Dell Technologies Inc 8.94% |
| Advanced Micro Devices Inc 5.52% | Ciena Corp 5.10% |
| Semtech Corp 4.68% | Quanta Services Inc 3.58% |
| MARVELL TECHNOLOGY INC 4.01% | MYR Group Inc 3.29% |
| Taiwan Semiconductor Manufacturing Co Ltd 3.62% | nVent Electric PLC 3.18% |
| Intel Corp 3.35% | IREN Ltd 2.78% |
| Silicon Motion Technology Corp 3.15% | Constellation Energy Corp 2.70% |
| Foxconn Industrial Internet Co Ltd 2.67% | Terawulf Inc 2.66% |
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 May 31, 2026 and Sep 21, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| AIS | TCAI | AIS | TCAI | AIS | TCAI | |
| 3 months | −15.6% | −16.4% | −17.8 pts | −18.6 pts | −13.1 pts | −13.9 pts |
| 6 months | +67.5% | +34.7% | +49.5 pts | +16.7 pts | +43.3 pts | +10.5 pts |
| 1 year | +107.6% | +67.6% | +91.1 pts | +51.0 pts | +85.9 pts | +45.8 pts |
| Since launch | +188.0% | +88.8% | +159.0 pts | +65.8 pts | +147.2 pts | +59.4 pts |
| AIS VistaShares Artificial Intelligence Supercycle ETF Holds 60 stocks in artificial intelligence, 41% of its weight in S&P 500 companies | TCAI Tortoise AI Infrastructure ETF Holds 43 stocks in aI infrastructure and chips, 63% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | VistaShares | Tortoise |
| Theme | Artificial intelligence | AI infrastructure and chips |
| In the S&P 500 | 41.2% | 63.2% |
| Active share vs the S&P 500 | 88.9% | 92.7% |
| In the Nasdaq-100 | 32.8% | 26.2% |
| Holdings | 60 | 43 |
| Top ten, share of the fund | 45.6% | 50.6% |
| Expense ratio | 0.75% | 0.65% |
| Fee for the differing part | 0.84% | 0.70% |
| Total return, 1 year | +107.6% | +67.6% |
| vs the S&P 500 | +91.1 pts | +51.0 pts |
| vs the Nasdaq-100 | +85.9 pts | +45.8 pts |
| Below its high | −18.3% | −18.4% |
| Net assets | $1.0bn | $217m |
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.
TCAI in plain words
By weight, 63% of TCAI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 93%. The top ten holdings are 51% of the fund across 43 positions, as filed for May 31, 2026. Over the year to Sep 18, 2026 the fund returned +67.6% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 51.0 pts. It sits 18.4% below its all-time high of Jun 22, 2026.
Questions people ask
- Do AIS and TCAI hold the same stocks?
- By their latest filings, 22% 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 TCAI?
- AIS has 41% of its weight in S&P 500 names and TCAI has 63%, so TCAI differs more from the index.
- Which is cheaper, AIS or TCAI?
- AIS charges 0.75% a year and TCAI charges 0.65%, so TCAI 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 TCAI, data as of Sep 18, 2026. https://etfiq.com/compare/themes/ais-vs-tcai Free to use with attribution; the underlying files are at Open data.