SEISvsPRFZETF Comparison
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SEI Select Small Cap ETF (SEIS) belongs to the US Small Cap segment. Invesco RAFI US 1500 Small-Mid ETF (PRFZ) is part of the US Multi-Factor segment. Both ETFs have the same top 3 sector exposures: Finance, Healthcare and Technology. SEIS is more expensive with a Total Expense Ratio (TER) of 0.55%, versus 0.36% for PRFZ. SEIS is up 13.72% year-to-date (YTD) with +$180M in YTD flows. PRFZ performs better with 16.5% YTD performance, and -$319M in YTD flows. Run a side-by-side ETF comparison of SEIS and PRFZ 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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SEIS vs PRFZ performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/30/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SEIS PRFZ | +1.90%+1.45% | -2.09%-1.11% | +13.72%+16.50% | +16.34%+18.64% | n/a+79.52% | n/a+45.25% |
| Flows | SEIS PRFZ | +$16M-$72M | +$57M-$71M | +$180M-$319M | +$210M-$329M | --$506M | --$131M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SEIS PRFZ | +13.74%+13.97% | +18.05%+16.95% | n/a+20.12% | n/a+21.08% |
| Max drawdown | SEIS PRFZ | -7.96%-8.72% | -11.33%-10.44% | n/a-26.51% | n/a-26.51% |
| Max drawdown duration | SEIS PRFZ | 75d75d | 84d84d | n/a283d | n/a283d |
Trading data
SEIS | PRFZ | |
Last sale 10/30/2026 at 1:30 PM | $31.67 | $53.10 |
| Previous close 10/29/2026 | $32.19 | $54.11 |
| 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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SEIS
is actively managed and doesn’t replicate an indexSEIS | PRFZ | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
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Main metrics
Last update 10/30/2026 at 1:30 PM
Live
Closed
SEIS | PRFZ | |
|---|---|---|
| Last price | $31.67 | $53.10 |
| 1D performance | -1.62% | -1.87% |
| AuM | $620.42 M | $2.66 B |
| E/R | 0.55% | 0.36% |
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Exposure
Countries
SEIS
USA
92.34%
Other
7.66%
PRFZ
USA
97.41%
Other
2.59%
Sectors
SEIS
Finance
21.8%
Healthcare
17.73%
Technology
13.97%
Industrials
13.02%
Consumer Cyclical.
8.97%
Other
24.5%
PRFZ
Finance
22.71%
Healthcare
18.37%
Technology
17.85%
Industrials
10.14%
Other
30.94%
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Diversification
SEIS
Total weight of top 15 holdings out of 15
14.73%
PRFZ
Total weight of top 15 holdings out of 15
5.46%
Top 15 holdings
Data as of September 30, 2026
SEIS
CNO Financial Group, Inc.
1.28%
Abercrombie & Fitch Co.
1.23%
Urban Outfitters, Inc.
1.07%
Watts Water Technologies, Inc.
1.06%
Terex Corp.
1.03%
Jackson Financial, Inc.
1.02%
Enova International, Inc.
0.98%
Zurn Elkay Water Solutions Corp.
0.93%
Hudbay Minerals, Inc.
0.91%
ExlService Holdings, Inc.
0.90%
CareDx, Inc.
0.89%
Commercial Metals Co.
0.88%
Diodes, Inc.
0.88%
Keysight Technologies, Inc.
0.85%
Apple Hospitality REIT, Inc.
0.82%
PRFZ
10X Genomics, Inc.
0.49%
SharkNinja, Inc.
0.39%
Crescent Energy Co.
0.39%
Paycom Software, Inc.
0.38%
Iridium Communications, Inc.
0.37%
DocuSign, Inc.
0.36%
MaxLinear, Inc.
0.36%
Dynatrace, Inc.
0.35%
Par Pacific Holdings, Inc.
0.35%
Iovance Biotherapeutics, Inc.
0.35%
Roivant Sciences Ltd.
0.34%
Bio-Techne Corp.
0.34%
GRAIL, Inc.
0.33%
Viavi Solutions, Inc.
0.33%
ATI, Inc.
0.32%
Frequently asked questions about SEIS and PRFZ
How have the SEIS and PRFZ ETFs performed in 2026?
As of October 30, 2026, SEIS is up 13.72% year-to-date (YTD), while PRFZ has returned 16.5%. That puts PRFZ better performer ahead so far this year.
Which ETF is attracting more investor money: SEIS or PRFZ?
Year-to-date, the SEIS ETF saw +$180M in flows, compared to -$319M for PRFZ.
Which ETF is more volatile: SEIS or PRFZ?
Over the past year, SEIS had a volatility of 18.05%, while PRFZ experienced 16.95%.
Which ETF is bigger: SEIS or PRFZ?
As of October 30, 2026, SEIS holds $620.42 M in assets under management (AUM), while PRFZ manages $2.66 B.
What sectors do the SEIS and PRFZ ETFs invest in?
SEIS leans toward sectors like Finance, Healthcare and Technology. Meanwhile, PRFZ focuses on Finance, Healthcare and Technology.
What are the top holdings of the SEIS ETF and PRFZ ETF?
SEIS top holdings include CNO Financial Group, Inc., Abercrombie & Fitch Co. and Urban Outfitters, Inc.. PRFZ holds in its top three: 10X Genomics, Inc., SharkNinja, Inc. and Crescent Energy Co..
Which ETF is more diversified: SEIS or PRFZ?
SEIS holds 369 securities with 14.73% of its assets in the top 15. PRFZ has 1489 securities and a top 15 weight of 5.46%.
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