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MMID · MFS Active Mid Cap ETF

Equity fundActively managed0.59% fee$34mSince Sep 24, 2025SEC filings ↗
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MMID is actively managed and returned +7.2% over the past year.

+7.2%
Total return, 1 year
0.59%
Expense ratio
103
Holdings
−4.9%
Below its high
WindowTotal returnS&P 500Gap to S&P 500Gap to Nasdaq-100
3M Jul 2 – Oct 2, 2026+0.2%+3.6%−3.4 pts−5.1 pts
6M Apr 2 – Oct 2, 2026+7.9%+17.9%−10.0 pts−20.5 pts
1Y Oct 2, 2025 – Oct 2, 2026+7.2%+16.2%−9.0 pts−17.1 pts
Since listing Sep 24, 2025 – Oct 2, 2026+8.2%+17.7%−9.5 pts−18.2 pts

MMID over each window to Oct 2, 2026. Every figure is an ETFIQ calculation. Source: ETFIQ.

MMID top ten by weight, 16.8% of its 103 equity positions, from the holdings filed for May 31, 2026. An index fund holds what the index holds, so this is the index. Source: the fund’s SEC filing.

nVent Electric PLC 1.97%
Seagate Technology Holdings PLC 1.85%
Littelfuse Inc 1.84%
Ross Stores Inc 1.70%
Diamondback Energy Inc 1.66%
Element Solutions Inc 1.65%
Microchip Technology Inc 1.60%
Global Payments Inc 1.53%
Waters Corp 1.52%
WW Grainger Inc 1.46%
Fund filings on SEC EDGAR ↗
Head to head
Funds near this one
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In plain words

MMID is actively managed and tracks no index. Over the year to Oct 2, 2026 it returned +7.2% with distributions reinvested, against +16.2% for the S&P 500 and +24.3% for the Nasdaq-100. The prospectus expense ratio is 0.59% a year. By its holdings filed for May 31, 2026, 58% of the fund by weight is stocks the S&P 500 also holds, across 103 positions, with the top ten at 16.8%. It sat 4.9% below its high of Aug 13, 2026 on Oct 2, 2026.
What it tracksNo index, actively managed
Fund typeEquity fund
Category (ETFIQ)Stocks · U.S. mid-cap blend
Expense ratio (485BPOS XBRL, Jun 25, 2026)0.59%
Price$26.58
Listed sinceSep 24, 2025
Net assets (SEC filing, whole fund, as filed for May 31, 2026)$34m
Below its high (ETFIQ)−4.9%
Holdings103
Top ten weight16.8%
Holdings as of (SEC N-PORT)May 31, 2026
Already in the S&P 500, by weight (ETFIQ)57.6%
Active share vs the S&P 500 (ETFIQ)97.3%
Already in the Nasdaq-100, by weight (ETFIQ)8.6%
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

Questions people ask about MMID

How has MMID performed?
Over the year to Oct 2, 2026, MMID returned +7.2% with distributions reinvested, against +16.2% for the S&P 500. Over three years the figure is not published.
What does MMID cost?
The prospectus expense ratio is 0.59% a year.
What does MMID hold?
103 positions as filed for May 31, 2026, with the top ten at 16.8% of the fund. 58% of its weight is in stocks the S&P 500 also holds.
How far is MMID below its high?
4.9% below its high of Aug 13, 2026, measured on the reinvested series to Oct 2, 2026.
Sources and dates
Prices, MMID and S&P 500Tiingo end-of-day · Oct 2, 2026
Fee, 0.59%Prospectus filing with the expense ratio (SEC) ↗
Net assets, $34mSEC filing, whole fund · May 31, 2026
HoldingsHoldings filing (SEC Form N-PORT) · May 31, 2026 ↗
IssuerMFS website ↗
All fund filingsFund filings on SEC EDGAR ↗
SourceMFS’s own site ↗

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

ETFIQ covers core, leveraged and inverse, buffer, thematic, option-income, alternatives and spot crypto ETFs. This fund is here because the other funds here are measured against it and portfolios hold it. ETFIQ is an independent publisher and makes no recommendations. Standards and sources

How these figures are computed →Standards and sources →Open data →
Cite this page

ETFIQ, MMID, core fund, data as of Oct 2, 2026. https://etfiq.com/funds/mmid

Free to use with attribution; the underlying files are at Open data.

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