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MSMLvsBRSMETF Comparison

ETF 1

MSML

iShares Morningstar Small-Cap ETF

This fund is part of

US Small Cap

+0.49%

Full MSML fund page

VS

ETF 2

BRSM

MFS Blended Research Small-Mid Cap ETF

This fund is part of

US Multi-Factor

+0.36%

Full BRSM fund page

iShares Morningstar Small-Cap ETF (MSML) belongs to the US Small Cap segment. MFS Blended Research Small-Mid Cap ETF (BRSM) is part of the US Multi-Factor segment. MSML's top 3 sector exposures are Finance, Healthcare and Technology. In contrast, BRSM's top sector exposures are Finance, Technology and Healthcare. MSML is less expensive with a Total Expense Ratio (TER) of 0.04%, versus 0.38% for BRSM. Run a side-by-side ETF comparison of MSML 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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MSML vs BRSM performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 10/05/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	MSML BRSM	-2.83%-3.32%	-3.44%-2.38%	+12.52%n/a	+13.83%n/a	+65.41%n/a	+37.60%n/a
Flows	MSML BRSM	--	-+$4M	-$7M-	-$10M-	-$25M-	-$23M-

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	MSML BRSM	+11.93%+11.74%	+16.04%n/a	+19.35%n/a	+21.21%n/a
Max drawdown	MSML BRSM	-8.03%-7.38%	-9.38%n/a	-25.75%n/a	-30.04%n/a
Max drawdown duration	MSML BRSM	50d47d	65dn/a	289dn/a	1067dn/a

Trading data

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	MSML	BRSM
Last sale 10/5/2026 at 1:30 PM		$25.30
Previous close 10/02/2026		$25.10
Consolidated volume 10/02/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of September 30, 2026

1-year trailing difference

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BRSM

is actively managed and doesn’t replicate an index

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	MSML	BRSM
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 10/5/2026 at 1:30 PM

Live

Closed

	MSML	BRSM
Last price	–	$25.30
1D performance	–	+0.80%
AuM	$275.31 M	$26.60 M
E/R	0.04%	0.38%

Characteristics

	MSML	BRSM
Management strategy	Passive	Active
Provider	iShares	MFS
Benchmark	Morningstar US Small Cap Extended Index	-
N° of holdings	1551	311
Asset class	Equities	-
Trailing 12m distribution yield	Join	Join
Inception date	June 28, 2004	June 3, 2026
ESG	No	No

More MSML data on Trackinsight

More BRSM data on Trackinsight

Exposure

Countries

MSML

USA

96.82%

Other

3.18%

BRSM

USA

92.06%

Other

7.94%

Sectors

MSML

Finance

25.39%

Healthcare

15.31%

Technology

14.44%

Industrials

12.88%

Other

31.99%

BRSM

Finance

24.53%

Technology

15.77%

Healthcare

14.22%

Industrials

11.6%

Non-Energy Materi.

8.73%

Other

25.15%

Diversification

MSML

Total weight of top 15 holdings out of 15

4.58%

BRSM

Total weight of top 15 holdings out of 15

14.29%

Top 15 holdings

Data as of August 31, 2026

MSML

Atlassian Corp.

0.48%

Okta, Inc.

0.46%

BlackRock Cash Funds - Treasury

0.38%

Roku, Inc.

0.32%

Guardant Health, Inc.

0.32%

Nutanix, Inc.

0.29%

Zebra Technologies Corp.

0.27%

Jones Lang LaSalle, Inc.

0.27%

Gen Digital, Inc.

0.27%

Guidewire Software, Inc.

0.26%

TransUnion

0.26%

Nordson Corp.

0.25%

Dynatrace, Inc.

0.25%

Reinsurance Group of America, Inc.

0.25%

Jazz Pharmaceuticals Plc

0.25%

BRSM

TechnipFMC plc

1.14%

Roku, Inc.

1.09%

Box, Inc.

1.06%

Aramark

1.04%

Universal Health Services, Inc.

0.98%

Everest Group Ltd.

0.98%

Bill Holdings, Inc.

0.97%

Popular, Inc.

0.97%

Lincoln National Corp.

0.95%

UGI Corp.

0.88%

UMB Financial Corp.

0.87%

Cathay General Bancorp

0.87%

Okta, Inc.

0.83%

Gap, Inc.

0.83%

AGCO Corp.

0.82%

Frequently asked questions about MSML and BRSM

Which ETF is bigger: MSML or BRSM?

As of October 5, 2026, MSML holds $275.31 M in assets under management (AUM), while BRSM manages $26.60 M.

What sectors do the MSML and BRSM ETFs invest in?

MSML leans toward sectors like Finance, Healthcare and Technology. Meanwhile, BRSM focuses on Finance, Technology and Healthcare.

What are the top holdings of the MSML ETF and BRSM ETF?

MSML top holdings include Atlassian Corp., Okta, Inc. and BlackRock Cash Funds - Treasury. BRSM holds in its top three: TechnipFMC plc, Roku, Inc. and Box, Inc..

MSMLvsBRSMETF Comparison

iShares Morningstar Small-Cap ETF

MFS Blended Research Small-Mid Cap ETF

MSML vs BRSM performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

Which ETF is bigger: MSML or BRSM?

As of October 5, 2026, MSML holds $275.31 M in assets under management (AUM), while BRSM manages $26.60 M.

What sectors do the MSML and BRSM ETFs invest in?

MSML leans toward sectors like Finance, Healthcare and Technology. Meanwhile, BRSM focuses on Finance, Technology and Healthcare.

What are the top holdings of the MSML ETF and BRSM ETF?

MSML top holdings include Atlassian Corp., Okta, Inc. and BlackRock Cash Funds - Treasury. BRSM holds in its top three: TechnipFMC plc, Roku, Inc. and Box, Inc..

Which ETF is more diversified: MSML or BRSM?

MSML holds 1566 securities with 4.58% of its assets in the top 15. BRSM has 311 securities and a top 15 weight of 14.29%.

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