IWB vs OMFL: Differences, Returns & Fees
IWB and OMFL hold 67% of their weight in the same names, and OMFL returned +19.7% over the year. Net assets on Oct 9, 2026: $49.6bn for iShares Russell 1000 ETF and $4.8bn for Invesco Russell 1000 Dynamic Multifactor ETF.
IWB costs 0.14 points a year less; their one-year returns differ by 3.1 points; IWB is 10.4 times larger.
| IWB | OMFL | |
|---|---|---|
| Expense ratio | 0.15% | 0.29% |
| Net assets | $49.6bn | $4.8bn |
| Total return, 1 year | +16.6% | +19.7% |
| What it tracks | Russell 1000 Index | Russell 1000 Invesco Dynamic Multifactor Index |
| Holdings in common | 67% | |
| Holdings dated | Oct 9, 2026 | Oct 10, 2026 |
| Top ten holdings, share of the fund | 36.1% | 37.2% |
Holdings in common uses holdings dated Oct 9, 2026.
What they hold in common
By the books each fund has filed, IWB and OMFL hold 67% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Oct 9, 2026.
half
67% in common
On the same fields
IWB and OMFL on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.
About IWB
IWB tracks the Russell 1000. Over the year to Oct 9, 2026 it returned +16.6% with distributions reinvested, against +16.8% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 9, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,025 positions, with the top ten at 36.1%.
About OMFL
OMFL tracks an index. Over the year to Oct 9, 2026 it returned +19.7% with distributions reinvested. The prospectus expense ratio is 0.29% a year. By its holdings published by its issuer for Oct 10, 2026, 93% of the fund by weight is stocks the S&P 500 also holds, across 635 positions, with the top ten at 37.2%.
Questions people ask
- Which returned more over the last year, IWB or OMFL?
- In the year to Oct 9, 2026, with distributions reinvested, IWB returned +16.6% and OMFL +19.7%.
- Which is cheaper, IWB or OMFL?
- IWB is cheaper, by 0.14 percentage points a year. That is about $14 on $10,000 held for a year. Fees come from each fund's prospectus.
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, IWB against OMFL, data as of Oct 9, 2026. https://etfiq.com/compare/any/iwb-vs-omfl
ETFIQ. (Oct 9, 2026). IWB against OMFL. Retrieved from https://etfiq.com/compare/any/iwb-vs-omfl
[IWB against OMFL (ETFIQ, Oct 9, 2026)](https://etfiq.com/compare/any/iwb-vs-omfl)
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