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SIZEvsIMCBETF Comparison

ETF 1
SIZE

iShares MSCI USA Size Factor ETF

This fund is part of
US Large Cap
-1.51%
Full SIZE fund page
VS
ETF 2
IMCB

iShares Morningstar Mid-Cap ETF

This fund is part of
US Mid Cap
-1.75%
Full IMCB fund page

iShares MSCI USA Size Factor ETF (SIZE) belongs to the US Large Cap segment. iShares Morningstar Mid-Cap ETF (IMCB) is part of the US Mid Cap segment. SIZE's top 3 sector exposures are Information Technology, Industrials and Financials. In contrast, IMCB's top sector exposures are Industrials, Information Technology and Financials. SIZE is more expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.04% for IMCB. SIZE is down -0.92% year-to-date (YTD) with -$8M in YTD flows. IMCB performs better with 0.96% YTD performance, and +$17M in YTD flows. Run a side-by-side ETF comparison of SIZE and IMCB 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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SIZE vs IMCB performance and flow charts

Performance

-4.0-3.0-2.0-1.00.01.02.03.0%Feb 12Feb 17Feb 19Feb 23Feb 26Mar 2Mar 4Mar 6Mar 10Mar 12

Cumulative Flows

-10 M-5 M0 M5 M10 MFeb 12Feb 17Feb 19Feb 23Feb 26Mar 2Mar 4Mar 6Mar 10Mar 12

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

Historic performance and flows
Data as of 03/12/2026
1M3MYTD1Y3Y5Y
Perf.
SIZE
IMCB
-3.63%-3.43%
-1.67%+0.08%
-0.92%+0.96%
+13.31%+15.96%
+49.15%+50.37%
+42.96%+42.70%
Flows
SIZE
IMCB
-$8M+$5M
+$8M+$38M
-$8M+$17M
+$37M+$302M
-$47M+$399M
-$670M+$286M
Volatility and drawdown
3M1Y3Y5Y
Volatility
SIZE
IMCB
+12.41%+13.35%
+17.58%+18.28%
+14.76%+15.34%
+17.05%+17.67%
Max drawdown
SIZE
IMCB
-5.47%-5.95%
-13.31%-13.82%
-18.57%-19.88%
-24.05%-25.13%
Max drawdown duration
SIZE
IMCB
14d14d
46d46d
219d238d
820d835d
Trading data

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SIZE
IMCB
Last sale
3/13/2026 at 1:30 PM
$160.04
$83.47
Previous close
03/12/2026
$160.10
$83.45
Consolidated volume
03/12/2026
Average volume
30 days
Average discount or premium
30 days
Average Bid/Ask spread
30 days
Replication quality
Data as of February 27, 2026
1-year trailing difference

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SIZE
IMCB
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 3/13/2026 at 1:30 PM
Live
Closed
SIZE
IMCB
Last price
$160.04
$83.47
1D performance
-0.04%
+0.02%
AuM$376.37 M$1.43 B
E/R0.15%0.04%
Characteristics
SIZE
IMCB
Management strategyPassivePassive
ProvideriSharesiShares
BenchmarkMSCI USA Low Size IndexMorningstar U.S. Mid Cap Index
N° of holdings511371
Asset classEquitiesEquities
Trailing 12m distribution yield
Join
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Inception dateApril 16, 2013June 28, 2004
ESGNoNo
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Exposure

Countries

SIZE
USA
93.42%
Other
6.58%
IMCB
USA
92.44%
Other
7.56%

Sectors

SIZE
Information Techn.
17.02%
Industrials
15.31%
Financials
12.96%
Health Care
9.71%
Consumer Discreti.
9.65%
Other
35.36%
IMCB
Industrials
18.05%
Information Techn.
14.73%
Financials
12.65%
Consumer Discreti.
10.46%
Health Care
8.59%
Other
35.51%
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Diversification

SIZE

Total weight of top 15 holdings out of 15

4.05%
IMCB

Total weight of top 15 holdings out of 15

9.81%

Top 15 holdings

Data as of January 31, 2026
SIZE
US7731211089
0.32%
ECHOSTAR
0.30%
WESTERN DIGITAL
0.30%
MICRON TECHNOLOGY
0.30%
SEAGATE TECHNOLOGY HOLDINGS PLC
0.28%
FREEPORT-MCMORAN INC
0.28%
ENTEGRIS
0.28%
MICROCHIP TECHNOLOGY
0.26%
US5128073062
0.26%
TERADYNE
0.26%
DOLLAR GENERAL
0.25%
APPLIED MATERIAL
0.25%
SCHLUMBERGER
0.24%
KLA CORPORATION
0.24%
NEWMONT CORP
0.24%
IMCB
NEWMONT CORP
1.02%
WESTERN DIGITAL
0.70%
FREEPORT-MCMORAN INC
0.69%
SEAGATE TECHNOLOGY HOLDINGS PLC
0.67%
PNC FINL SVC
0.65%
US
0.64%
ROYAL CARIBBEAN GROUP
0.64%
EMERSON ELECTRIC
0.62%
CRH PLC
0.61%
WILLIAMS
0.60%
BANK OF NEW YORK MELLON
0.60%
HOWMET AEROSPACE INC
0.60%
GENERAL MOTORS
0.59%
CUMMINS
0.59%
UNITED PARCEL SERVICE-CL
0.58%
Frequently asked questions about SIZE and IMCB

How have the SIZE and IMCB ETFs performed in 2026?

As of March 12, 2026, SIZE is down -0.92% year-to-date (YTD), while IMCB has returned 0.96%. That puts IMCB better performer ahead so far this year.

Which ETF is attracting more investor money: SIZE or IMCB?

Year-to-date, the SIZE ETF saw -$8M in flows, compared to +$17M for IMCB.

Which ETF is more volatile: SIZE or IMCB?

Over the past year, SIZE had a volatility of 17.58%, while IMCB experienced 18.28%.

Which ETF is bigger: SIZE or IMCB?

As of March 12, 2026, SIZE holds $376.37 M in assets under management (AUM), while IMCB manages $1.43 B.

What sectors do the SIZE and IMCB ETFs invest in?

SIZE leans toward sectors like Information Technology, Industrials and Financials. Meanwhile, IMCB focuses on Industrials, Information Technology and Financials.

What are the top holdings of the SIZE ETF and IMCB ETF?

SIZE top holdings include US7731211089, ECHOSTAR and WESTERN DIGITAL. IMCB holds in its top three: NEWMONT CORP, WESTERN DIGITAL and FREEPORT-MCMORAN INC.

Which ETF is more diversified: SIZE or IMCB?

SIZE holds 544 securities with 4.05% of its assets in the top 15. IMCB has 403 securities and a top 15 weight of 9.81%.

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Latest news about SIZE & IMCB
ETFs for contrarian investors
December 21, 2022
SIZE
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