OMFSvsIWMETF Comparison
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Invesco Russell 2000 Dynamic Multifactor ETF (OMFS) belongs to the US Multi-Factor segment. iShares Russell 2000 ETF (IWM) is part of the US Small Cap segment. Both ETFs have the same top 3 sector exposures: Finance, Healthcare and Technology. OMFS is more expensive with a Total Expense Ratio (TER) of 0.39%, versus 0.19% for IWM. OMFS is up 13.55% year-to-date (YTD) with -$25M in YTD flows. IWM performs better with 14.26% YTD performance, and -$7.60B in YTD flows. Run a side-by-side ETF comparison of OMFS and IWM below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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OMFS vs IWM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/30/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | OMFS IWM | +1.21%+0.56% | -4.74%-4.27% | +13.55%+14.26% | +16.06%+15.29% | +62.76%+77.06% | +24.65%+27.06% |
| Flows | OMFS IWM | +$494K-$2.25B | -$1M-$1.92B | -$25M-$7.60B | -$18M-$2.13B | -$183M-$3.34B | +$67M-$7.32B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | OMFS IWM | +11.90%+14.02% | +16.40%+18.26% | +19.79%+21.10% | +20.37%+22.40% |
| Max drawdown | OMFS IWM | -9.29%-11.10% | -9.29%-11.10% | -22.72%-27.52% | -29.04%-31.96% |
| Max drawdown duration | OMFS IWM | 75d75d | 75d75d | 284d289d | 1095d1093d |
Trading data
OMFS | IWM | |
Last sale 10/30/2026 at 1:30 PM | $49.78 | $279.33 |
| Previous close 10/29/2026 | $50.55 | $284.01 |
| Consolidated volume 10/29/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of October 30, 2026
1-year trailing difference
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OMFS | IWM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/30/2026 at 1:30 PM
Live
Closed
OMFS | IWM | |
|---|---|---|
| Last price | $49.78 | $279.33 |
| 1D performance | -1.53% | -1.65% |
| AuM | $266.62 M | $75.49 B |
| E/R | 0.39% | 0.19% |
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Exposure
Countries
OMFS
USA
94.02%
Other
5.98%
IWM
USA
95.19%
Other
4.81%
Sectors
OMFS
Finance
42.33%
Healthcare
14.69%
Technology
12.42%
Industrials
7.13%
Other
23.43%
IWM
Finance
25.83%
Healthcare
20.64%
Technology
12.66%
Industrials
10.38%
Other
30.5%
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Diversification
OMFS
Total weight of top 15 holdings out of 15
16.21%
IWM
Total weight of top 15 holdings out of 15
4.92%
Top 15 holdings
Data as of September 30, 2026
OMFS
CareTrust REIT, Inc.
1.67%
FirstCash Holdings, Inc.
1.58%
SSR Mining, Inc.
1.44%
Terreno Realty Corp.
1.19%
Brinker International, Inc.
1.15%
MYR Group, Inc.
1.13%
Silicon Laboratories, Inc.
1.09%
Krystal Biotech, Inc.
1.02%
Piper Sandler Cos.
0.93%
Acadian Asset Management, Inc.
0.91%
Victory Capital Holdings, Inc.
0.89%
Travere Therapeutics, Inc.
0.87%
Moelis & Co.
0.81%
WisdomTree, Inc.
0.77%
Kulicke & Soffa Industries, Inc.
0.76%
IWM
Twist Bioscience Corp.
0.43%
BlackRock Cash Funds - Treasury
0.38%
Moog, Inc.
0.37%
JFrog Ltd.
0.36%
10X Genomics, Inc.
0.36%
UMB Financial Corp.
0.32%
BrightSpring Health Services, Inc.
0.32%
Glaukos Corp.
0.32%
ViaSat, Inc.
0.30%
Hut 8 Corp.
0.30%
Cytokinetics, Inc.
0.30%
CareTrust REIT, Inc.
0.30%
Old National Bancorp
0.29%
FirstCash Holdings, Inc.
0.29%
Protagonist Therapeutics, Inc.
0.29%
Frequently asked questions about OMFS and IWM
How have the OMFS and IWM ETFs performed in 2026?
As of October 30, 2026, OMFS is up 13.55% year-to-date (YTD), while IWM has returned 14.26%. That puts IWM better performer ahead so far this year.
Which ETF is attracting more investor money: OMFS or IWM?
Year-to-date, the OMFS ETF saw -$25M in flows, compared to -$7.60B for IWM.
Which ETF is more volatile: OMFS or IWM?
Over the past year, OMFS had a volatility of 16.4%, while IWM experienced 18.26%.
Which ETF is bigger: OMFS or IWM?
As of October 30, 2026, OMFS holds $266.62 M in assets under management (AUM), while IWM manages $75.49 B.
What sectors do the OMFS and IWM ETFs invest in?
OMFS leans toward sectors like Finance, Healthcare and Technology. Meanwhile, IWM focuses on Finance, Healthcare and Technology.
What are the top holdings of the OMFS ETF and IWM ETF?
OMFS top holdings include CareTrust REIT, Inc., FirstCash Holdings, Inc. and SSR Mining, Inc.. IWM holds in its top three: Twist Bioscience Corp., BlackRock Cash Funds - Treasury and Moog, Inc..
Which ETF is more diversified: OMFS or IWM?
OMFS holds 1106 securities with 16.21% of its assets in the top 15. IWM has 1973 securities and a top 15 weight of 4.92%.
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Latest news about OMFS & IWM
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