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MMSCvsIWOETF Comparison

ETF 1
MMSC

First Trust Multi-Manager Small Cap Opportunities ETF

This fund is part of
US Small Cap Growth
-0.19%
Full MMSC fund page
VS
ETF 2
IWO

iShares Russell 2000 Growth ETF

This fund is part of
US Small Cap Growth
-0.19%
Full IWO fund page

First Trust Multi-Manager Small Cap Opportunities ETF (MMSC) and iShares Russell 2000 Growth ETF (IWO) belong to the same industry segment: US Small Cap Growth. Both ETFs have the same top 3 sector exposures: Health Care, Information Technology and Industrials. MMSC is more expensive with a Total Expense Ratio (TER) of 0.95%, versus 0.24% for IWO. MMSC is down -0.78% year-to-date (YTD) with +$6M in YTD flows. IWO performs worse with -2.44% YTD performance, and -$617M in YTD flows. Run a side-by-side ETF comparison of MMSC and IWO 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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MMSC vs IWO performance and flow charts

Performance

-4.0-2.00.02.04.0%Feb 12Feb 20Feb 27Mar 6Mar 13

Cumulative Flows

-150 M-100 M-50 M0 M50 MFeb 12Feb 20Feb 27Mar 6Mar 13

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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.
MMSC
IWO
-4.16%-5.79%
-2.49%-3.88%
-0.78%-2.44%
+29.87%+24.59%
+66.42%+48.10%
n/a+2.09%
Flows
MMSC
IWO
+$3M-$70M
+$6M-$570M
+$6M-$617M
+$13M-$776M
+$31M-$664M
--$569M
Volatility and drawdown
3M1Y3Y5Y
Volatility
MMSC
IWO
+23.10%+21.24%
+25.85%+25.07%
+21.72%+22.18%
n/a+24.57%
Max drawdown
MMSC
IWO
-9.75%-10.83%
-16.88%-17.18%
-29.67%-28.47%
n/a-40.45%
Max drawdown duration
MMSC
IWO
49d50d
46d46d
280d280d
n/a1409d
Trading data

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MMSC
IWO
Last sale
3/13/2026 at 1:30 PM
$23.60
$315.18
Previous close
03/12/2026
$23.76
$316.45
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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MMSC
is actively managed and doesn’t replicate an index

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MMSC
IWO
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
MMSC
IWO
Last price
$23.60
$315.18
1D performance
-0.69%
-0.40%
AuM$42.74 M$12.34 B
E/R0.95%0.24%
Characteristics
MMSC
IWO
Management strategyActivePassive
ProviderFirst TrustiShares
Benchmark-Russell 2000 Growth Index
N° of holdings172906
Asset class-Equities
Trailing 12m distribution yield
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Inception dateOctober 14, 2021July 24, 2000
ESGNoNo
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Exposure

Countries

MMSC
USA
86.93%
Other
13.07%
IWO
USA
92.98%
Other
7.02%

Sectors

MMSC
Health Care
21.24%
Information Techn.
18.73%
Industrials
17.78%
Consumer Discreti.
11.26%
Other
30.99%
IWO
Health Care
21.61%
Information Techn.
20.47%
Industrials
19.92%
Consumer Discreti.
8.05%
Financials
7.76%
Other
22.2%
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Diversification

MMSC

Total weight of top 15 holdings out of 15

18.21%
IWO

Total weight of top 15 holdings out of 15

13.7%

Top 15 holdings

Data as of January 31, 2026
MMSC
MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC
1.55%
VSE
1.52%
GUARDANT HEALTH INC
1.30%
FABRINET
1.30%
PIPER SANDLER COMPANIES
1.29%
RAMBUS
1.29%
US4859241048
1.27%
BLOOM ENERGY CORP
1.26%
CRINETICS PHARMACEUTICALS
1.17%
XOMETRY
1.14%
AEROVIRONMENT
1.10%
US74006W2070
1.04%
KRATOS DEFENSE AND SECURITY SOLS
1.01%
EOS ENERGY ENTERPRISES INC ORD SHA
0.99%
IRHYTHM TECHNOLOGIES
0.98%
IWO
BLOOM ENERGY CORP
2.13%
CREDO TECHNOLOGY GROUP HOLDING
1.23%
KRATOS DEFENSE AND SECURITY SOLS
1.12%
FABRINET
1.11%
IONQ
0.91%
US65290E1010
0.88%
GUARDANT HEALTH INC
0.83%
RAMBUS
0.82%
BRIDGEBIO PHARMA
0.78%
STERLING INFRASTRUCTURE INC
0.70%
AEROVIRONMENT
0.69%
DYCOM INDUSTRIES
0.64%
US78473E1038
0.63%
ADVANCED ENERGY INDUSTRIES
0.63%
ENSIGN GROUP
0.59%
Frequently asked questions about MMSC and IWO

How have the MMSC and IWO ETFs performed in 2026?

As of March 12, 2026, MMSC is down -0.78% year-to-date (YTD), while IWO has lost -2.44%. That puts MMSC better performer ahead so far this year.

Which ETF is attracting more investor money: MMSC or IWO?

Year-to-date, the MMSC ETF saw +$6M in flows, compared to -$617M for IWO.

Which ETF is more volatile: MMSC or IWO?

Over the past year, MMSC had a volatility of 25.85%, while IWO experienced 25.07%.

Which ETF is bigger: MMSC or IWO?

As of March 12, 2026, MMSC holds $42.74 M in assets under management (AUM), while IWO manages $12.34 B.

What sectors do the MMSC and IWO ETFs invest in?

MMSC leans toward sectors like Health Care, Information Technology and Industrials. Meanwhile, IWO focuses on Health Care, Information Technology and Industrials.

What are the top holdings of the MMSC ETF and IWO ETF?

MMSC top holdings include MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC, VSE and GUARDANT HEALTH INC. IWO holds in its top three: BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and KRATOS DEFENSE AND SECURITY SOLS.

Which ETF is more diversified: MMSC or IWO?

MMSC holds 197 securities with 18.21% of its assets in the top 15. IWO has 1094 securities and a top 15 weight of 13.7%.

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