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MMIDvsIWSETF Comparison

ETF 1
MMID

MFS Active Mid Cap ETF

This fund is part of
Uncategorized Equities
-0.8%
Full MMID fund page
VS
ETF 2
IWS

iShares Russell Mid-Cap Value ETF

This fund is part of
US Mid Cap Value
-1.45%
Full IWS fund page

MFS Active Mid Cap ETF (MMID) belongs to the Uncategorized Equities segment. iShares Russell Mid-Cap Value ETF (IWS) is part of the US Mid Cap Value segment. MMID's top 3 sector exposures are Industrials, Information Technology and Financials. In contrast, IWS's top sector exposures are Industrials, Financials and Information Technology. MMID is more expensive with a Total Expense Ratio (TER) of 0.59%, versus 0.23% for IWS. MMID is down -0.39% year-to-date (YTD) with +$502K in YTD flows. IWS performs better with 2.84% YTD performance, and -$200M in YTD flows. Run a side-by-side ETF comparison of MMID and IWS 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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MMID vs IWS performance and flow charts

Performance

-5.0-4.0-3.0-2.0-1.00.01.0%Feb 11Feb 19Feb 26Mar 5Mar 12

Cumulative Flows

-100 M-50 M0 M50 M100 MFeb 11Feb 19Feb 26Mar 5Mar 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 03/11/2026
1M3MYTD1Y3Y5Y
Perf.
MMID
IWS
-4.71%-3.71%
-2.03%+1.80%
-0.39%+2.84%
n/a+18.90%
n/a+49.02%
n/a+42.41%
Flows
MMID
IWS
+$502K+$93M
+$502K-$108M
+$502K-$200M
--$453M
--$2.15B
--$2.34B
Volatility and drawdown
3M1Y3Y5Y
Volatility
MMID
IWS
+13.40%+13.55%
n/a+18.33%
n/a+15.59%
n/a+17.34%
Max drawdown
MMID
IWS
-5.33%-6.06%
n/a-13.73%
n/a-20.45%
n/a-21.32%
Max drawdown duration
MMID
IWS
31d10d
n/a46d
n/a269d
n/a785d
Trading data

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MMID
IWS
Last sale
3/13/2026 at 1:30 PM
$24.46
$144.89
Previous close
03/12/2026
$24.54
$145.01
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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MMID
is actively managed and doesn’t replicate an index

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MMID
IWS
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
MMID
IWS
Last price
$24.46
$144.89
1D performance
-0.32%
-0.08%
AuM$32.59 M$14.54 B
E/R0.59%0.23%
Characteristics
MMID
IWS
Management strategyActivePassive
ProviderMFSiShares
Benchmark-Russell Midcap Value Index
N° of holdings88641
Asset class-Equities
Trailing 12m distribution yield
Join
Join
Inception dateSeptember 24, 2025July 17, 2001
ESGNoNo
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Exposure

Countries

MMID
USA
79.27%
Ireland
7.22%
Other
13.51%
IWS
USA
93.71%
Other
6.29%

Sectors

MMID
Industrials
17.17%
Information Techn.
13.1%
Financials
12.45%
Health Care
8.06%
Consumer Discreti.
7.69%
Real Estate
7.32%
Other
34.21%
IWS
Industrials
16.15%
Financials
14.72%
Information Techn.
11.62%
Consumer Discreti.
8.36%
Real Estate
8.1%
Other
41.06%
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Diversification

MMID

Total weight of top 15 holdings out of 15

19.54%
IWS

Total weight of top 15 holdings out of 15

9.98%

Top 15 holdings

Data as of January 31, 2026
MMID
ROSS STORES
1.54%
DIAMONDBACK ENERGY
1.40%
WABTEC
1.34%
NVENT ELECTRIC PLC
1.31%
CHENIERE ENERGY
1.31%
COGNIZANT TECHNOLOGY SOLUTN
1.29%
M&T BANK
1.29%
NORDSON
1.28%
SITEONE LANDSCAPE SUPPLY INC
1.28%
MICROCHIP TECHNOLOGY
1.27%
BURLINGTON STORES
1.26%
LITTELFUSE
1.26%
WW GRAINGER
1.26%
ALLIANT ENERGY
1.23%
STERIS
1.22%
IWS
WESTERN DIGITAL
0.95%
CORNING
0.81%
CUMMINS
0.81%
BANK OF NEW YORK MELLON
0.79%
US80004C2008
0.73%
L3 HARRIS TECHNOLOGIES
0.67%
ROBINHOOD MARKETS
0.65%
WARNER BROS. DISCOVERY
0.65%
KINDER MORGAN
0.59%
DIGITAL REALTY REIT
0.58%
BAKER HUGHES
0.57%
REALTY INCOME REIT
0.56%
VALERO ENERGY
0.56%
FORD MOTOR
0.55%
PHILLIPS 66
0.54%
Frequently asked questions about MMID and IWS

How have the MMID and IWS ETFs performed in 2026?

As of March 11, 2026, MMID is down -0.39% year-to-date (YTD), while IWS has returned 2.84%. That puts IWS better performer ahead so far this year.

Which ETF is attracting more investor money: MMID or IWS?

Year-to-date, the MMID ETF saw +$502K in flows, compared to -$200M for IWS.

Which ETF is bigger: MMID or IWS?

As of March 11, 2026, MMID holds $32.59 M in assets under management (AUM), while IWS manages $14.54 B.

What sectors do the MMID and IWS ETFs invest in?

MMID leans toward sectors like Industrials, Information Technology and Financials. Meanwhile, IWS focuses on Industrials, Financials and Information Technology.

What are the top holdings of the MMID ETF and IWS ETF?

MMID top holdings include ROSS STORES, DIAMONDBACK ENERGY and WABTEC. IWS holds in its top three: WESTERN DIGITAL, CORNING and CUMMINS.

Which ETF is more diversified: MMID or IWS?

MMID holds 92 securities with 19.54% of its assets in the top 15. IWS has 714 securities and a top 15 weight of 9.98%.

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