PRFZvsSEISETF Comparison
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Invesco RAFI US 1500 Small-Mid ETF (PRFZ) belongs to the US Multi-Factor segment. SEI Select Small Cap ETF (SEIS) is part of the US Small Cap 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 0.55% for SEIS. PRFZ is up 15.74% year-to-date (YTD) with -$256M in YTD flows. SEIS performs worse with 12.85% YTD performance, and +$149M in YTD flows. Run a side-by-side ETF comparison of PRFZ and SEIS 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 SEIS performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | PRFZ SEIS | -6.55%-6.37% | +0.39%-3.78% | +15.74%+12.85% | +17.83%+13.06% | +61.78%n/a | +53.82%n/a |
| Flows | PRFZ SEIS | +$2M-$9M | -$40M+$54M | -$256M+$149M | -$273M+$203M | -$407M- | -$234M- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | PRFZ SEIS | +14.08%+15.00% | +17.46%+18.80% | +20.28%n/a | +21.14%n/a |
| Max drawdown | PRFZ SEIS | -6.88%-6.53% | -10.44%-11.33% | -26.51%n/a | -26.51%n/a |
| Max drawdown duration | PRFZ SEIS | 31d30d | 84d84d | 283dn/a | 283dn/a |
Trading data
PRFZ | SEIS | |
Last sale 9/17/2026 at 1:30 PM | $53.26 | $31.61 |
| Previous close 09/16/2026 | $52.93 | $31.47 |
| Consolidated volume 09/16/2026 | ||
| 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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SEIS
is actively managed and doesn’t replicate an indexPRFZ | SEIS | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
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Main metrics
Last update 9/17/2026 at 1:30 PM
Live
Closed
PRFZ | SEIS | |
|---|---|---|
| Last price | $53.26 | $31.61 |
| 1D performance | +0.63% | +0.44% |
| AuM | $2.71 B | $585.26 M |
| E/R | 0.36% | 0.55% |
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Exposure
Countries
PRFZ
USA
97.66%
Other
2.34%
SEIS
USA
93.16%
Other
6.84%
Sectors
PRFZ
Finance
23.63%
Healthcare
17.84%
Technology
16.07%
Industrials
10.34%
Other
32.12%
SEIS
Finance
23.17%
Healthcare
16.35%
Technology
13.55%
Industrials
12.88%
Consumer Cyclical.
9.01%
Other
25.04%
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Diversification
PRFZ
Total weight of top 15 holdings out of 15
5.25%
SEIS
Total weight of top 15 holdings out of 15
15.19%
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%
SEIS
Enova International, Inc.
1.54%
CNO Financial Group, Inc.
1.29%
Terex Corp.
1.16%
Brinker International, Inc.
1.14%
Urban Outfitters, Inc.
1.01%
Watts Water Technologies, Inc.
1.01%
Zurn Elkay Water Solutions Corp.
0.98%
Commercial Metals Co.
0.94%
Jackson Financial, Inc.
0.93%
Abercrombie & Fitch Co.
0.92%
Clear Secure, Inc.
0.92%
ExlService Holdings, Inc.
0.86%
Federal Signal Corp.
0.85%
Old National Bancorp
0.84%
Apple Hospitality REIT, Inc.
0.81%
Frequently asked questions about PRFZ and SEIS
How have the PRFZ and SEIS ETFs performed in 2026?
As of September 16, 2026, PRFZ is up 15.74% year-to-date (YTD), while SEIS has returned 12.85%. That puts PRFZ better performer ahead so far this year.
Which ETF is attracting more investor money: PRFZ or SEIS?
Year-to-date, the PRFZ ETF saw -$256M in flows, compared to +$149M for SEIS.
Which ETF is more volatile: PRFZ or SEIS?
Over the past year, PRFZ had a volatility of 17.46%, while SEIS experienced 18.8%.
Which ETF is bigger: PRFZ or SEIS?
As of September 16, 2026, PRFZ holds $2.71 B in assets under management (AUM), while SEIS manages $585.26 M.
What sectors do the PRFZ and SEIS ETFs invest in?
PRFZ leans toward sectors like Finance, Healthcare and Technology. Meanwhile, SEIS focuses on Finance, Healthcare and Technology.
What are the top holdings of the PRFZ ETF and SEIS ETF?
PRFZ top holdings include Par Pacific Holdings, Inc., Roivant Sciences Ltd. and ATI, Inc.. SEIS holds in its top three: Enova International, Inc., CNO Financial Group, Inc. and Terex Corp..
Which ETF is more diversified: PRFZ or SEIS?
PRFZ holds 1500 securities with 5.25% of its assets in the top 15. SEIS has 372 securities and a top 15 weight of 15.19%.
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