OMFSvsIWMWETF Comparison
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Invesco Russell 2000 Dynamic Multifactor ETF (OMFS) belongs to the US Multi-Factor segment. iShares Russell 2000 BuyWrite ETF (IWMW) is part of the Options Strategies segment. Both ETFs have the same top 3 sector exposures: Finance, Healthcare and Technology. Both OMFS and IWMW have the same Total Expense Ratio (TER) of 0.39%. OMFS is up 16.39% year-to-date (YTD) with -$24M in YTD flows. IWMW performs worse with 13.32% YTD performance, and +$24M in YTD flows. Run a side-by-side ETF comparison of OMFS and IWMW 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 IWMW performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/14/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | OMFS IWMW | -4.97%-3.71% | -1.13%+2.70% | +16.39%+13.32% | +18.51%+15.92% | +52.25%n/a | +41.42%n/a |
| Flows | OMFS IWMW | --$821K | -$10M+$7M | -$24M+$24M | -$20M+$31M | -$180M- | +$78M- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | OMFS IWMW | +11.85%+9.84% | +17.05%+12.37% | +19.94%n/a | +20.62%n/a |
| Max drawdown | OMFS IWMW | -4.97%-3.79% | -9.13%-6.92% | -22.72%n/a | -29.04%n/a |
| Max drawdown duration | OMFS IWMW | 29d29d | 63d62d | 284dn/a | 1095dn/a |
Trading data
OMFS | IWMW | |
Last sale 9/15/2026 at 1:30 PM | $50.81 | $38.25 |
| Previous close 09/14/2026 | $51.28 | $38.55 |
| Consolidated volume 09/14/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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OMFS | IWMW | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/15/2026 at 1:30 PM
Live
Closed
OMFS | IWMW | |
|---|---|---|
| Last price | $50.81 | $38.25 |
| 1D performance | -0.91% | -0.78% |
| AuM | $275.42 M | $57.88 M |
| E/R | 0.39% | 0.39% |
Characteristics
OMFS | IWMW | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | Invesco | iShares |
| Benchmark | Russell 2000 OFI Dynamic Multifactor Index | Cboe FTSE Russell IWM 2% OTM BuyWrite Index |
| N° of holdings | 1110 | 1945 |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | November 8, 2017 | March 14, 2024 |
| ESG | No | No |
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Exposure
Countries
OMFS
USA
93.91%
Other
6.09%
IWMW
USA
96.06%
Other
3.94%
Sectors
OMFS
Finance
43.33%
Healthcare
14.52%
Technology
11.96%
Industrials
7.05%
Other
23.15%
IWMW
Finance
26.88%
Healthcare
20.29%
Technology
11.87%
Industrials
10.58%
Other
30.37%
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Diversification
OMFS
Total weight of top 15 holdings out of 15
15.62%
IWMW
Total weight of top 15 holdings out of 15
5.1%
Top 15 holdings
Data as of July 31, 2026
OMFS
CareTrust REIT, Inc.
1.80%
FirstCash Holdings, Inc.
1.40%
Terreno Realty Corp.
1.23%
MYR Group, Inc.
1.21%
Brinker International, Inc.
1.11%
Krystal Biotech, Inc.
1.05%
Clear Secure, Inc.
1.04%
SSR Mining, Inc.
1.01%
Silicon Laboratories, Inc.
1.01%
Piper Sandler Cos.
0.91%
Moelis & Co.
0.87%
Victory Capital Holdings, Inc.
0.75%
Travere Therapeutics, Inc.
0.75%
Acadian Asset Management, Inc.
0.75%
Essent Group Ltd.
0.73%
IWMW
BlackRock Cash Funds - Treasury
0.61%
Moog, Inc.
0.39%
BrightSpring Health Services, Inc.
0.38%
Hut 8 Corp.
0.36%
UMB Financial Corp.
0.35%
Cytokinetics, Inc.
0.34%
ViaSat, Inc.
0.32%
Glaukos Corp.
0.31%
Krystal Biotech, Inc.
0.31%
CareTrust REIT, Inc.
0.30%
Old National Bancorp
0.30%
Brinker International, Inc.
0.29%
Crinetics Pharmaceuticals, Inc.
0.28%
HealthEquity, Inc.
0.28%
JFrog Ltd.
0.28%
Frequently asked questions about OMFS and IWMW
How have the OMFS and IWMW ETFs performed in 2026?
As of September 14, 2026, OMFS is up 16.39% year-to-date (YTD), while IWMW has returned 13.32%. That puts OMFS better performer ahead so far this year.
Which ETF is attracting more investor money: OMFS or IWMW?
Year-to-date, the OMFS ETF saw -$24M in flows, compared to +$24M for IWMW.
Which ETF is more volatile: OMFS or IWMW?
Over the past year, OMFS had a volatility of 17.05%, while IWMW experienced 12.37%.
Which ETF is bigger: OMFS or IWMW?
As of September 14, 2026, OMFS holds $275.42 M in assets under management (AUM), while IWMW manages $57.88 M.
What sectors do the OMFS and IWMW ETFs invest in?
OMFS leans toward sectors like Finance, Healthcare and Technology. Meanwhile, IWMW focuses on Finance, Healthcare and Technology.
What are the top holdings of the OMFS ETF and IWMW ETF?
OMFS top holdings include CareTrust REIT, Inc., FirstCash Holdings, Inc. and Terreno Realty Corp.. IWMW holds in its top three: BlackRock Cash Funds - Treasury, Moog, Inc. and BrightSpring Health Services, Inc..
Which ETF is more diversified: OMFS or IWMW?
OMFS holds 1112 securities with 15.62% of its assets in the top 15. IWMW has 1957 securities and a top 15 weight of 5.1%.
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