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ISCBvsBRSMETF Comparison

ETF 1

ISCB

iShares Morningstar Small-Cap ETF

This fund is part of

US Small Cap

+0.49%

Full ISCB fund page

VS

ETF 2

BRSM

MFS Blended Research Small-Mid Cap ETF

This fund is part of

US Multi-Factor

+0.14%

Full BRSM fund page

iShares Morningstar Small-Cap ETF (ISCB) belongs to the US Small Cap segment. MFS Blended Research Small-Mid Cap ETF (BRSM) is part of the US Multi-Factor segment. ISCB's top 3 sector exposures are Finance, Industrials and Healthcare. In contrast, BRSM's top sector exposures are Finance, Technology and Industrials. ISCB 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 ISCB 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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ISCB 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 07/27/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	ISCB BRSM	-0.95%+0.25%	+5.96%n/a	+15.24%n/a	+24.80%n/a	+51.20%n/a	+43.40%n/a
Flows	ISCB BRSM	-+$4M	-$146K-	-$7M-	-$10M-	-$27M-	-$23M-

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	ISCB BRSM	+14.46%n/a	+16.59%n/a	+19.47%n/a	+21.34%n/a
Max drawdown	ISCB BRSM	-4.04%n/a	-9.38%n/a	-25.75%n/a	-30.04%n/a
Max drawdown duration	ISCB BRSM	16dn/a	65dn/a	289dn/a	1067dn/a

Trading data

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	ISCB	BRSM
Last sale 7/27/2026 at 1:30 PM	$74.48	$25.53
Previous close 07/27/2026	$73.85	$25.42
Consolidated volume 07/27/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of June 30, 2026

1-year trailing difference

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BRSM

is actively managed and doesn’t replicate an index

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

Main metrics

Last update 7/27/2026 at 1:30 PM

Live

Closed

	ISCB	BRSM
Last price	$74.48	$25.53
1D performance	+0.85%	+0.43%
AuM	$282.95 M	$26.45 M
E/R	0.04%	0.38%

Characteristics

	ISCB	BRSM
Management strategy	Passive	Active
Provider	iShares	MFS
Benchmark	Morningstar US Small Cap Extended Index	-
N° of holdings	1561	306
Asset class	Equities	-
Trailing 12m distribution yield	Join	Join
Inception date	June 28, 2004	June 3, 2026
ESG	No	No

More ISCB data on Trackinsight

More BRSM data on Trackinsight

Exposure

Countries

ISCB

USA

96.46%

Other

3.54%

BRSM

USA

92.05%

Other

7.95%

Sectors

ISCB

Finance

24.76%

Industrials

14.62%

Healthcare

14.55%

Technology

14.15%

Other

31.91%

BRSM

Finance

23.44%

Technology

17.13%

Industrials

14%

Healthcare

13.48%

Non-Energy Materi.

7.87%

Other

24.09%

Diversification

ISCB

Total weight of top 15 holdings out of 15

4.31%

BRSM

Total weight of top 15 holdings out of 15

14.22%

Top 15 holdings

Data as of June 30, 2026

ISCB

BlackRock Cash Funds - Treasury

0.40%

Sterling Infrastructure, Inc.

0.40%

Okta, Inc.

0.36%

Guardant Health, Inc.

0.30%

Onto Innovation, Inc.

0.29%

Roku, Inc.

0.28%

Generac Holdings, Inc.

0.27%

QXO, Inc.

0.26%

Neurocrine Biosciences, Inc.

0.26%

Akamai Technologies, Inc.

0.26%

Masco Corp.

0.25%

SiTime Corp.

0.25%

Host Hotels & Resorts, Inc.

0.25%

IDEX Corp.

0.24%

Toll Brothers, Inc.

0.24%

BRSM

MYR Group, Inc.

1.13%

Okta, Inc.

1.08%

Aramark

1.05%

Curtiss-Wright Corp.

1.00%

TechnipFMC plc

0.97%

Roku, Inc.

0.96%

Popular, Inc.

0.95%

Everest Group Ltd.

0.93%

nVent Electric Plc

0.91%

The Timken Co.

0.89%

Talen Energy Corp.

0.89%

Cathay General Bancorp

0.88%

UMB Financial Corp.

0.88%

Sandisk Corp.

0.86%

Universal Health Services, Inc.

0.85%

Frequently asked questions about ISCB and BRSM

Which ETF is bigger: ISCB or BRSM?

As of July 27, 2026, ISCB holds $282.95 M in assets under management (AUM), while BRSM manages $26.45 M.

What sectors do the ISCB and BRSM ETFs invest in?

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

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

ISCB top holdings include BlackRock Cash Funds - Treasury, Sterling Infrastructure, Inc. and Okta, Inc.. BRSM holds in its top three: MYR Group, Inc., Okta, Inc. and Aramark.

ISCBvsBRSMETF Comparison

iShares Morningstar Small-Cap ETF

MFS Blended Research Small-Mid Cap ETF

ISCB 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: ISCB or BRSM?

As of July 27, 2026, ISCB holds $282.95 M in assets under management (AUM), while BRSM manages $26.45 M.

What sectors do the ISCB and BRSM ETFs invest in?

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

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

ISCB top holdings include BlackRock Cash Funds - Treasury, Sterling Infrastructure, Inc. and Okta, Inc.. BRSM holds in its top three: MYR Group, Inc., Okta, Inc. and Aramark.

Which ETF is more diversified: ISCB or BRSM?

ISCB holds 1582 securities with 4.31% of its assets in the top 15. BRSM has 306 securities and a top 15 weight of 14.22%.

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