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MDYG · State Street SPDR S & P 400 Mid Cap Growth ETF

Equity fundTracks an index0.15% fee$2.8bnSince Jan 4, 2010SEC filings ↗
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MDYG tracks an index and returned +16.9% over the past year.

+16.9%
Total return, 1 year
0.15%
Expense ratio
249
Holdings
−6.0%
Below its high
WindowTotal returnS&P 500Gap to S&P 500Gap to Nasdaq-100
3M Jul 2 – Oct 2, 2026−2.8%+3.6%−6.3 pts−8.1 pts
6M Apr 2 – Oct 2, 2026+10.2%+17.9%−7.8 pts−18.3 pts
1Y Oct 2, 2025 – Oct 2, 2026+16.9%+16.2%+0.7 pts−7.4 pts
3Y Oct 3, 2023 – Oct 2, 2026+62.3%+89.3%−26.9 pts−52.4 pts
Since listing Jan 4, 2010 – Oct 2, 2026+543.6%+813.0%−269.3 pts−1218.3 pts

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

MDYG top ten by weight, 14.9% of its 249 equity positions, from the holdings published by its issuer for Oct 1, 2026. An index fund holds what the index holds, so this is the index. Source: the issuer’s own daily file.

TWILIO INC A TWLO 2.57%
OKTA INC OKTA 1.96%
TECHNIPFMC PLC FTI 1.50%
NVENT ELECTRIC PLC NVT 1.49%
ATI INC ATI 1.45%
UNITED THERAPEUTICS CORP UTHR 1.36%
XPO INC XPO 1.17%
MACOM TECHNOLOGY SOLUTIONS H MTSI 1.17%
TENET HEALTHCARE CORP THC 1.14%
CURTISS WRIGHT CORP CW 1.12%
Holdings, the issuer’s own daily file ↗
Head to head
Funds near this one
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In plain words

MDYG tracks an index. Over the year to Oct 2, 2026 it returned +16.9% with distributions reinvested, against +16.2% for the S&P 500 and +24.3% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 1, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 249 positions, with the top ten at 14.9%. It sat 6.0% below its high of Aug 17, 2026 on Oct 2, 2026.
What it tracksnot read by ETFIQ
Fund typeEquity fund
Category (ETFIQ)Stocks · U.S. mid-cap blend
Expense ratio (485BPOS XBRL, Oct 24, 2025)0.15%
Price$106.62
Listed sinceJan 4, 2010
Net assets (the issuer’s own daily fund list, as of Oct 1, 2026)$2.8bn
Below its high (ETFIQ)−6.0%
Holdings249
Top ten weight14.9%
Holdings published for (the issuer’s daily file)Oct 1, 2026
Already in the S&P 500, by weight (ETFIQ)0.0%
Active share vs the S&P 500 (ETFIQ)100.0%
Already in the Nasdaq-100, by weight (ETFIQ)0.0%
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 MDYG

How has MDYG performed?
Over the year to Oct 2, 2026, MDYG returned +16.9% with distributions reinvested, against +16.2% for the S&P 500. Over three years the figure is +62.3%.
What does MDYG cost?
The prospectus expense ratio is 0.15% a year.
What does MDYG hold?
249 positions as published by its issuer for Oct 1, 2026, with the top ten at 14.9% of the fund. 0% of its weight is in stocks the S&P 500 also holds.
How far is MDYG below its high?
6.0% below its high of Aug 17, 2026, measured on the reinvested series to Oct 2, 2026.
Sources and dates
Prices, MDYG and S&P 500Tiingo end-of-day · Oct 2, 2026
Fee, 0.15%Prospectus filing with the expense ratio (SEC) ↗
Net assets, $2.8bnThe issuer’s own daily fund list · Oct 1, 2026
HoldingsHoldings, the issuer’s own daily file · Oct 1, 2026 ↗
IssuerState Street website ↗
All fund filingsFund filings on SEC EDGAR ↗
SourceState Street’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, MDYG, core fund, data as of Oct 2, 2026. https://etfiq.com/funds/mdyg

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

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