Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
COWZ vs IWB: how they differ
COWZ and IWB hold 7% of their weight in the same names, and COWZ returned more over the year.
Pacer US Cash Cows 100 ETF and iShares Russell 1000 ETF.
What they hold in common
By the books each fund has filed, COWZ and IWB hold 7% of their money in the same securities at the same weight.
| Holding | COWZ | IWB |
|---|---|---|
| QUALCOMM Inc | 2.67% | 0.28% |
| Verizon Communications Inc | 1.90% | 0.26% |
| Gilead Sciences Inc | 1.84% | 0.23% |
| Uber Technologies Inc | 2.01% | 0.20% |
| AT&T Inc | 1.84% | 0.20% |
| Booking Holdings Inc | 1.87% | 0.20% |
| Pfizer Inc | 2.00% | 0.20% |
| CVS Health Corp | 2.16% | 0.19% |
| ConocoPhillips | 2.17% | 0.18% |
| Salesforce Inc | 1.76% | 0.18% |
| Altria Group Inc | 2.21% | 0.17% |
| Bristol-Myers Squibb Co | 2.03% | 0.17% |
| Only in COWZ | Only in IWB |
|---|---|
| Accenture PLC 1.68% | NVIDIA CORPORATION 6.73% |
| Coterra Energy Inc 0.63% | APPLE INC. 6.03% |
| Flex Ltd 0.59% | MICROSOFT CORPORATION 4.00% |
| TechnipFMC PLC 0.58% | AMAZON.COM, INC. 3.33% |
| DuPont de Nemours Inc 0.36% | ALPHABET INC. 3.00% |
| BROADCOM INC. 2.54% | |
| ALPHABET INC. 2.42% | |
| MICRON TECHNOLOGY, INC. 1.88% |
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 | IWB iShares Russell 1000 ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Pacer | iShares |
| What it is | US Cash Cows 100 | Russell 1000 |
| Total return, 1 year | +23.4% | +16.7% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +5.9 pts | −0.8 pts |
| Expense ratio | 0.49% | 0.15% |
| Already in the S&P 500 | 95.8% | 91.9% |
| Holdings | 100 | 1024 |
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.
IWB in plain words
IWB is an index equity fund tracking the Russell 1000. Over the year to Sep 11, 2026 it returned +16.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings filed for Jun 30, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1024 positions, with the top ten at 33.5%.
Questions people ask
- Which returned more over the last year, COWZ or IWB?
- In the year to Sep 12, 2026, with distributions reinvested, COWZ returned +23.4% and IWB returned +16.7%, so COWZ returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, COWZ or IWB?
- COWZ charges 0.49% a year and IWB charges 0.15%, so IWB is cheaper. Fees come from each fund's prospectus.
- How much do COWZ and IWB overlap with the S&P 500?
- By their latest filed holdings, 96% of COWZ and 92% of IWB by weight is stocks the S&P 500 already holds. Between the two funds, 7% of their books are the same securities at the same weight.
Other comparisons
Where to next
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 IWB, data as of Sep 12, 2026. https://etfiq.com/compare/any/COWZ-IWB Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources