Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
COWZ vs IWM: how they differ
COWZ and IWM hold 0% of their weight in the same names, and COWZ returned more over the year.
Pacer US Cash Cows 100 ETF and iShares Russell 2000 ETF.
What they hold in common
By the books each fund has filed, COWZ and IWM hold 0% of their money in the same securities at the same weight.
| Only in COWZ | Only in IWM |
|---|---|
| QUALCOMM Inc 2.67% | Moog, Inc. 0.38% |
| Altria Group Inc 2.21% | Hut 8 Corp. 0.37% |
| ConocoPhillips 2.17% | Viasat, Inc. 0.35% |
| CVS Health Corp 2.16% | BrightSpring Health Services, Inc. 0.35% |
| Bristol-Myers Squibb Co 2.03% | Cytokinetics, Inc. 0.35% |
| Ford Motor Co 2.01% | MaxLinear, Inc. 0.34% |
| Uber Technologies Inc 2.01% | Argan, Inc. 0.34% |
| Pfizer Inc 2.00% | UMB Financial Corp. 0.33% |
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 Apr 30, 2026 and Jun 30, 2026.
| COWZ Pacer US Cash Cows 100 ETF | IWM iShares Russell 2000 ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Pacer | iShares |
| What it is | US Cash Cows 100 | Russell 2000 |
| Total return, 1 year | +23.4% | +21.2% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +5.9 pts | +3.7 pts |
| Expense ratio | 0.49% | 0.19% |
| Already in the S&P 500 | 95.8% | 0.0% |
| Holdings | 100 | 2014 |
COWZ in plain words
COWZ is an index equity fund tracking the US Cash Cows 100. Over the year to Sep 11, 2026 it returned +23.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.49% a year. By its holdings filed for Apr 30, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 100 positions, with the top ten at 21.2%. It sat 3.2% below its high of Sep 3, 2026 on Sep 11, 2026.
IWM in plain words
IWM is an index equity fund tracking the Russell 2000. Over the year to Sep 11, 2026 it returned +21.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.19% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 2014 positions, with the top ten at 3.4%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, COWZ or IWM?
- In the year to Sep 12, 2026, with distributions reinvested, COWZ returned +23.4% and IWM returned +21.2%, so COWZ returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, COWZ or IWM?
- COWZ charges 0.49% a year and IWM charges 0.19%, so IWM is cheaper. Fees come from each fund's prospectus.
- How much do COWZ and IWM overlap with the S&P 500?
- By their latest filed holdings, 96% of COWZ and 0% of IWM by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
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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, COWZ against IWM, data as of Sep 12, 2026. https://etfiq.com/compare/any/COWZ-IWM Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources