Data as of .
ARKK vs THMZ: which is really different?
ARKK and THMZ hold 13% of their weight in the same names, and THMZ returned more over the year.
ETFIQ Off-Index Score: ARKK 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
13% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, ARKK and THMZ hold 13% of their money in the same securities at the same weight.
| Holding | ARKK | THMZ |
|---|---|---|
| NVIDIA CORP | 2.45% | 2.83% |
| AMAZON.COM INC | 2.31% | 3.58% |
| BROADCOM INC | 1.65% | 2.28% |
| ELI LILLY & CO | 0.48% | 1.79% |
| Only in ARKK | Only in THMZ |
|---|---|
| TESLA INC 9.26% | Taiwan Semiconductor Manufacturing Co Lt 6.22% |
| SPACE EXPLORATION TECHN-CL A 6.37% | Applied Materials Inc 5.68% |
| TEMPUS AI INC-CL A 5.92% | Alphabet Inc 3.63% |
| CIRCLE INTERNET GROUP INC 5.20% | Microsoft Corp 2.84% |
| COINBASE GLOBAL INC -CLASS A 4.67% | Mitsubishi Electric Corp 2.79% |
| CRISPR THERAPEUTICS AG 4.64% | Keysight Technologies Inc 2.66% |
| ROBINHOOD MARKETS INC - A 4.19% | FANUC Corp 2.54% |
| TWIST BIOSCIENCE CORP 3.95% | Siemens AG 2.42% |
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 21, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| ARKK | THMZ | ARKK | THMZ | ARKK | THMZ | |
| 3 months | +10.0% | +0.3% | +7.8 pts | −1.9 pts | +12.5 pts | +2.8 pts |
| 6 months | +27.6% | +17.1% | +9.6 pts | −1.0 pts | +3.4 pts | −7.2 pts |
| 1 year | +6.1% | +7.2% | −10.5 pts | −9.4 pts | −15.7 pts | −14.6 pts |
| 3 years | +112.5% | not published | +34.1 pts | not published | +14.4 pts | not published |
| Since launch | +378.7% | +37.0% | +17.3 pts | −16.5 pts | −299.9 pts | −34.3 pts |
| ARKK ARK Innovation ETF Holds 46 stocks in broad innovation and megatrends, 36% of its weight in S&P 500 companies | THMZ Lazard Equity Megatrends ETF Holds 59 stocks in broad innovation and megatrends, 55% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | ARK | Lazard |
| Theme | Broad innovation and megatrends | Broad innovation and megatrends |
| In the S&P 500 | 36.2% | 55.2% |
| Active share vs the S&P 500 | 85.7% | 73.1% |
| In the Nasdaq-100 | 27.3% | 30.2% |
| Holdings | 46 | 59 |
| Top ten, share of the fund | 49.7% | 35.2% |
| Expense ratio | 0.75% | 0.50% |
| Fee for the differing part | 0.88% | 0.68% |
| Total return, 1 year | +6.1% | +7.2% |
| vs the S&P 500 | −10.5 pts | −9.4 pts |
| vs the Nasdaq-100 | −15.7 pts | −14.6 pts |
| Below its high | −42.9% | −3.5% |
| Net assets | $9.3bn | $54m |
ARKK in plain words
By weight, 36% of ARKK's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 86%. The top ten holdings are 50% of the fund across 46 positions, as published by its issuer for Sep 21, 2026. Over the year to Sep 18, 2026 the fund returned +6.1% with distributions reinvested against +16.6% for the S&P 500, so a holder was behind by 10.5 pts. It sits 42.9% below its all-time high of Feb 12, 2021.
THMZ in plain words
By weight, 55% of THMZ's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 73%. The top ten holdings are 35% of the fund across 59 positions, as filed for Jun 30, 2026. Over the year to Sep 18, 2026 the fund returned +7.2% with distributions reinvested against +16.6% for the S&P 500, so a holder was behind by 9.4 pts.
Questions people ask
- Do ARKK and THMZ hold the same stocks?
- By their latest filings, 13% 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, ARKK or THMZ?
- ARKK has 36% of its weight in S&P 500 names and THMZ has 55%, so ARKK differs more from the index.
- Which is cheaper, ARKK or THMZ?
- ARKK charges 0.75% a year and THMZ charges 0.50%, so THMZ 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, ARKK against THMZ, data as of Sep 18, 2026. https://etfiq.com/compare/themes/arkk-vs-thmz Free to use with attribution; the underlying files are at Open data.