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IWMWvsRESMETF Comparison
iShares Russell 2000 BuyWrite ETF (IWMW) belongs to the Options Strategies segment. Columbia Research Enhanced Small Cap ETF (RESM) is part of the US Multi-Factor segment. IWMW's top 3 sector exposures are Industrials, Financials and Health Care. In contrast, RESM's top sector exposures are Industrials, Financials and Information Technology. IWMW is more expensive with a Total Expense Ratio (TER) of 0.39%, versus 0.32% for RESM. IWMW is down -0.85% year-to-date (YTD) with +$13M in YTD flows. RESM performs better with 3.12% YTD performance, and -$2M in YTD flows. Run a side-by-side ETF comparison of IWMW and RESM below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
IWMW vs RESM performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWMW RESM | -2.68%-4.62% | -0.98%+0.86% | -0.85%+3.12% | +13.46%n/a | n/an/a | n/an/a |
| Flows | IWMW RESM | +$4M-$2M | +$17M+$3M | +$13M-$2M | +$27M- | -- | -- |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWMW RESM | +13.57%+15.92% | +17.61%n/a | n/an/a | n/an/a |
| Max drawdown | IWMW RESM | -5.49%-5.45% | -14.60%n/a | n/an/a | n/an/a |
| Max drawdown duration | IWMW RESM | 14d13d | 98dn/a | n/an/a | n/an/a |
IWMW | RESM | |
Last sale 3/13/2026 at 1:30 PM | $36.94 | $20.06 |
| Previous close 03/12/2026 | $37.07 | $20.08 |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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IWMW | RESM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
IWMW | RESM | |
|---|---|---|
| Last price | $36.94 | $20.06 |
| 1D performance | -0.35% | -0.13% |
| AuM | $45.89 M | $3.08 M |
| E/R | 0.39% | 0.32% |
IWMW | RESM | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | iShares | Columbia Threadneedle Investments |
| Benchmark | Cboe FTSE Russell IWM 2% OTM BuyWrite Index | - |
| N° of holdings | 1635 | 864 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | March 14, 2024 | December 11, 2025 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the IWMW and RESM ETFs performed in 2026?
As of March 12, 2026, IWMW is down -0.85% year-to-date (YTD), while RESM has returned 3.12%. That puts RESM better performer ahead so far this year.
Which ETF is attracting more investor money: IWMW or RESM?
Year-to-date, the IWMW ETF saw +$13M in flows, compared to -$2M for RESM.
Which ETF is bigger: IWMW or RESM?
As of March 12, 2026, IWMW holds $45.89 M in assets under management (AUM), while RESM manages $3.08 M.
What sectors do the IWMW and RESM ETFs invest in?
IWMW leans toward sectors like Industrials, Financials and Health Care. Meanwhile, RESM focuses on Industrials, Financials and Information Technology.
What are the top holdings of the IWMW ETF and RESM ETF?
IWMW top holdings include BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and KRATOS DEFENSE AND SECURITY SOLS. RESM holds in its top three: FABRINET, LEXINGTON REIT and HECLA MINING.
Which ETF is more diversified: IWMW or RESM?
IWMW holds 1942 securities with 8.07% of its assets in the top 15. RESM has 879 securities and a top 15 weight of 8.1%.
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