PRFZvsIWMWETF Comparison
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Invesco RAFI US 1500 Small-Mid ETF (PRFZ) 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. PRFZ is less expensive with a Total Expense Ratio (TER) of 0.36%, versus 0.39% for IWMW. PRFZ is up 16.2% year-to-date (YTD) with -$256M in YTD flows. IWMW performs worse with 12.52% YTD performance, and +$24M in YTD flows. Run a side-by-side ETF comparison of PRFZ 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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PRFZ vs IWMW performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/15/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | PRFZ IWMW | -6.18%-4.35% | +0.07%+1.98% | +16.20%+12.52% | +17.99%+15.10% | +61.36%n/a | +54.04%n/a |
| Flows | PRFZ IWMW | +$2M-$821K | -$40M+$7M | -$256M+$24M | -$273M+$31M | -$407M- | -$234M- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | PRFZ IWMW | +14.13%+9.88% | +17.45%+12.37% | +20.29%n/a | +21.14%n/a |
| Max drawdown | PRFZ IWMW | -6.52%-4.38% | -10.44%-6.92% | -26.51%n/a | -26.51%n/a |
| Max drawdown duration | PRFZ IWMW | 30d30d | 84d62d | 283dn/a | 283dn/a |
Trading data
PRFZ | IWMW | |
Last sale 9/16/2026 at 6:36 PM | $53.09 | $38.14 |
| Previous close 09/15/2026 | $53.15 | $38.25 |
| Consolidated volume 09/15/2026 | ||
| 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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PRFZ | IWMW | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
Main metrics
Last update 9/16/2026 at 6:36 PM
Live
Closed
PRFZ | IWMW | |
|---|---|---|
| Last price | $53.09 | $38.14 |
| 1D performance | -0.11% | -0.29% |
| AuM | $2.73 B | $57.47 M |
| E/R | 0.36% | 0.39% |
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Exposure
Countries
PRFZ
USA
97.66%
Other
2.34%
IWMW
USA
96.06%
Other
3.94%
Sectors
PRFZ
Finance
23.63%
Healthcare
17.84%
Technology
16.07%
Industrials
10.34%
Other
32.12%
IWMW
Finance
26.88%
Healthcare
20.29%
Technology
11.87%
Industrials
10.58%
Other
30.37%
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Diversification
PRFZ
Total weight of top 15 holdings out of 15
5.25%
IWMW
Total weight of top 15 holdings out of 15
5.1%
Top 15 holdings
Data as of July 31, 2026
PRFZ
Par Pacific Holdings, Inc.
0.44%
Roivant Sciences Ltd.
0.40%
ATI, Inc.
0.40%
Revolution Medicines, Inc.
0.39%
Iridium Communications, Inc.
0.36%
SharkNinja, Inc.
0.34%
Carpenter Technology Corp.
0.34%
Enova International, Inc.
0.34%
Bio-Techne Corp.
0.34%
Crescent Energy Co.
0.32%
10X Genomics, Inc.
0.32%
TTM Technologies, Inc.
0.31%
The GEO Group, Inc.
0.31%
UMB Financial Corp.
0.30%
Compass, Inc. (New York)
0.30%
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 PRFZ and IWMW
How have the PRFZ and IWMW ETFs performed in 2026?
As of September 15, 2026, PRFZ is up 16.2% year-to-date (YTD), while IWMW has returned 12.52%. That puts PRFZ better performer ahead so far this year.
Which ETF is attracting more investor money: PRFZ or IWMW?
Year-to-date, the PRFZ ETF saw -$256M in flows, compared to +$24M for IWMW.
Which ETF is more volatile: PRFZ or IWMW?
Over the past year, PRFZ had a volatility of 17.45%, while IWMW experienced 12.37%.
Which ETF is bigger: PRFZ or IWMW?
As of September 15, 2026, PRFZ holds $2.73 B in assets under management (AUM), while IWMW manages $57.47 M.
What sectors do the PRFZ and IWMW ETFs invest in?
PRFZ leans toward sectors like Finance, Healthcare and Technology. Meanwhile, IWMW focuses on Finance, Healthcare and Technology.
What are the top holdings of the PRFZ ETF and IWMW ETF?
PRFZ top holdings include Par Pacific Holdings, Inc., Roivant Sciences Ltd. and ATI, Inc.. IWMW holds in its top three: BlackRock Cash Funds - Treasury, Moog, Inc. and BrightSpring Health Services, Inc..
Which ETF is more diversified: PRFZ or IWMW?
PRFZ holds 1500 securities with 5.25% of its assets in the top 15. IWMW has 1957 securities and a top 15 weight of 5.1%.
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