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BRSMvsMSMLETF Comparison

ETF 1

BRSM

MFS Blended Research Small-Mid Cap ETF

This fund is part of

US Multi-Factor

+0.62%

Full BRSM fund page

VS

ETF 2

MSML

iShares MSCI USA Small-Cap ETF

This fund is part of

US Small Cap

+1.49%

Full MSML fund page

MFS Blended Research Small-Mid Cap ETF (BRSM) belongs to the US Multi-Factor segment. iShares MSCI USA Small-Cap ETF (MSML) is part of the US Small Cap segment. BRSM's top 3 sector exposures are Finance, Technology and Healthcare. In contrast, MSML's top sector exposures are Finance, Healthcare and Technology. BRSM is more expensive with a Total Expense Ratio (TER) of 0.38%, versus 0.04% for MSML. Run a side-by-side ETF comparison of BRSM and MSML 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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BRSM vs MSML 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 10/20/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	BRSM MSML	-0.06%-1.53%	-0.65%-2.55%	n/a+11.52%	n/a+13.22%	n/a+68.38%	n/a+32.37%
Flows	BRSM MSML	--	+$2M-	--$7M	--$10M	--$22M	--$23M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	BRSM MSML	+12.65%+12.85%	n/a+15.63%	n/a+19.26%	n/a+21.24%
Max drawdown	BRSM MSML	-7.38%-8.77%	n/a-9.38%	n/a-25.75%	n/a-30.04%
Max drawdown duration	BRSM MSML	65d65d	n/a65d	n/a289d	n/a1067d

Trading data

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	BRSM	MSML
Last sale 10/21/2026 at 1:30 PM	$25.32
Previous close 10/20/2026	$25.20
Consolidated volume 10/20/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of October 22, 2026

1-year trailing difference

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BRSM

is actively managed and doesn’t replicate an index

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

Main metrics

Last update 10/21/2026 at 1:30 PM

Live

Closed

	BRSM	MSML
Last price	$25.32	–
1D performance	+0.49%	–
AuM	$26.71 M	$272.87 M
E/R	0.38%	0.04%

Characteristics

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

More BRSM data on Trackinsight

More MSML data on Trackinsight

Exposure

Countries

BRSM

USA

92.06%

Other

7.94%

MSML

USA

96.82%

Other

3.18%

Sectors

BRSM

Finance

24.53%

Technology

15.77%

Healthcare

14.22%

Industrials

11.6%

Non-Energy Materi.

8.73%

Other

25.15%

MSML

Finance

25.39%

Healthcare

15.31%

Technology

14.44%

Industrials

12.88%

Other

31.99%

Diversification

BRSM

Total weight of top 15 holdings out of 15

14.29%

MSML

Total weight of top 15 holdings out of 15

4.58%

Top 15 holdings

Data as of August 31, 2026

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%

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%

Frequently asked questions about BRSM and MSML

Which ETF is bigger: BRSM or MSML?

As of October 20, 2026, BRSM holds $26.71 M in assets under management (AUM), while MSML manages $272.87 M.

What sectors do the BRSM and MSML ETFs invest in?

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

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

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

BRSMvsMSMLETF Comparison

MFS Blended Research Small-Mid Cap ETF

iShares MSCI USA Small-Cap ETF

BRSM vs MSML 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: BRSM or MSML?

As of October 20, 2026, BRSM holds $26.71 M in assets under management (AUM), while MSML manages $272.87 M.

What sectors do the BRSM and MSML ETFs invest in?

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

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

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

Which ETF is more diversified: BRSM or MSML?

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

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