SMLFvsBRSMETF Comparison
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iShares U.S. Small-Cap Equity Factor ETF (SMLF) and MFS Blended Research Small-Mid Cap ETF (BRSM) belong to the same industry segment: US Multi-Factor. Both ETFs have the same top 3 sector exposures: Finance, Technology and Healthcare. SMLF is less expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.38% for BRSM. Run a side-by-side ETF comparison of SMLF and BRSM 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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SMLF vs BRSM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/14/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SMLF BRSM | -5.52%-4.65% | -1.76%-0.14% | +15.07%n/a | +16.19%n/a | +64.21%n/a | +68.00%n/a |
| Flows | SMLF BRSM | +$40M- | +$154M+$6M | +$856M- | +$1.38B- | +$2.49B- | +$2.25B- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SMLF BRSM | +14.29%+13.10% | +17.36%n/a | +19.91%n/a | +21.14%n/a |
| Max drawdown | SMLF BRSM | -5.84%-4.93% | -8.74%n/a | -26.10%n/a | -26.10%n/a |
| Max drawdown duration | SMLF BRSM | 29d29d | 81dn/a | 266dn/a | 266dn/a |
Trading data
SMLF | BRSM | |
Last sale 9/15/2026 at 1:30 PM | $84.89 | $25.43 |
| Previous close 09/14/2026 | $85.67 | $25.53 |
| 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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BRSM
is actively managed and doesn’t replicate an indexSMLF | BRSM | |
|---|---|---|
| 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
SMLF | BRSM | |
|---|---|---|
| Last price | $84.89 | $25.43 |
| 1D performance | -0.91% | -0.39% |
| AuM | $4.14 B | $26.94 M |
| E/R | 0.15% | 0.38% |
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Exposure
Countries
SMLF
USA
93.28%
Other
6.72%
BRSM
USA
91.96%
Other
8.04%
Sectors
SMLF
Finance
21.93%
Technology
17.24%
Healthcare
14.67%
Industrials
13.83%
Non-Energy Materi.
7.45%
Consumer Cyclical.
7.14%
Other
17.75%
BRSM
Finance
25.21%
Technology
14.85%
Healthcare
13.87%
Industrials
12.31%
Non-Energy Materi.
8.38%
Other
25.38%
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Diversification
SMLF
Total weight of top 15 holdings out of 15
10.16%
BRSM
Total weight of top 15 holdings out of 15
14.45%
Top 15 holdings
Data as of July 31, 2026
SMLF
EMCOR Group, Inc.
0.95%
Interactive Brokers Group, Inc.
0.86%
BlackRock Cash Funds - Treasury
0.83%
Flex Ltd.
0.77%
nVent Electric Plc
0.75%
Jabil, Inc.
0.74%
Astera Labs, Inc.
0.67%
Tapestry, Inc.
0.66%
Natera, Inc.
0.62%
Williams-Sonoma, Inc.
0.62%
Mueller Industries, Inc.
0.59%
Reliance, Inc.
0.55%
Popular, Inc.
0.54%
Tenet Healthcare Corp.
0.51%
Credo Technology Group Holding Ltd.
0.50%
BRSM
Aramark
1.08%
TechnipFMC plc
1.07%
Lincoln National Corp.
1.04%
Popular, Inc.
1.04%
Roku, Inc.
1.03%
Everest Group Ltd.
1.00%
Universal Health Services, Inc.
0.99%
Box, Inc.
0.96%
Cathay General Bancorp
0.92%
UMB Financial Corp.
0.92%
Bill Holdings, Inc.
0.91%
Talen Energy Corp.
0.91%
The Timken Co.
0.87%
Essential Properties Realty Trust, Inc.
0.86%
nVent Electric Plc
0.85%
Frequently asked questions about SMLF and BRSM
Which ETF is bigger: SMLF or BRSM?
As of September 14, 2026, SMLF holds $4.14 B in assets under management (AUM), while BRSM manages $26.94 M.
What sectors do the SMLF and BRSM ETFs invest in?
SMLF leans toward sectors like Finance, Technology and Healthcare. Meanwhile, BRSM focuses on Finance, Technology and Healthcare.
What are the top holdings of the SMLF ETF and BRSM ETF?
SMLF top holdings include EMCOR Group, Inc., Interactive Brokers Group, Inc. and BlackRock Cash Funds - Treasury. BRSM holds in its top three: Aramark, TechnipFMC plc and Lincoln National Corp..
Which ETF is more diversified: SMLF or BRSM?
SMLF holds 891 securities with 10.16% of its assets in the top 15. BRSM has 311 securities and a top 15 weight of 14.45%.
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