Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
COWZ vs IWO: how they differ
COWZ and IWO 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 Growth ETF.
What they hold in common
By the books each fund has filed, COWZ and IWO hold 0% of their money in the same securities at the same weight.
| Only in COWZ | Only in IWO |
|---|---|
| QUALCOMM Inc 2.67% | MOOG INC CLASS A 0.69% |
| Altria Group Inc 2.21% | GLAUKOS 0.65% |
| ConocoPhillips 2.17% | JFROG 0.64% |
| CVS Health Corp 2.16% | BRIGHTSPRING HEALTH SERVICES INC 0.62% |
| Bristol-Myers Squibb Co 2.03% | FIRSTCASH HOLDINGS INC 0.62% |
| Ford Motor Co 2.01% | BRINKER INTERNATIONAL INC 0.61% |
| Uber Technologies Inc 2.01% | INTERDIGITAL INC 0.60% |
| Pfizer Inc 2.00% | KRYSTAL BIOTECH 0.59% |
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 Sep 10, 2026.
| COWZ Pacer US Cash Cows 100 ETF | IWO iShares Russell 2000 Growth ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Pacer | iShares |
| What it is | US Cash Cows 100 | Russell 2000 Growth |
| Total return, 1 year | +23.4% | +17.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +5.9 pts | −0.5 pts |
| Expense ratio | 0.49% | 0.24% |
| Already in the S&P 500 | 95.8% | 0.0% |
| Holdings | 100 | 970 |
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.
IWO in plain words
IWO is an index equity fund tracking the Russell 2000 Growth. Over the year to Sep 11, 2026 it returned +17.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.24% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 970 positions, with the top ten at 6.2%. It sat 7.1% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, COWZ or IWO?
- In the year to Sep 13, 2026, with distributions reinvested, COWZ returned +23.4% and IWO returned +17.0%, so COWZ returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, COWZ or IWO?
- COWZ charges 0.49% a year and IWO charges 0.24%, so IWO is cheaper. Fees come from each fund's prospectus.
- How much do COWZ and IWO overlap with the S&P 500?
- By their latest filed holdings, 96% of COWZ and 0% of IWO 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.
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 IWO, data as of Sep 13, 2026. https://etfiq.com/compare/any/cowz-vs-iwo Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources