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State Street SPDR S&P 400 Mid Cap Growth ETF

This ETF provides exposure to Mid Cap US Equities

MDYG performance and flow charts

Last update 11/2/2026 at 2:52 PM
Live
Closed
Last price
$103.99
+$1.12 (+1.09%) Today

Performance

-3.0-2.0-1.00.01.02.03.0%Sep 30Oct 7Oct 14Oct 21Oct 28

Flows

0 M10 M20 M30 M40 M50 M
1 day price range
$103.99
$103.99
52 week price range
$87.22
$113.63
1W perf
+1.06%
YTD perf
+11.90%
YTD flows
+$73M
AuM
$2.79B
E/R
0.15%
TTM yield
0.68%
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Historic performance and flows

Data as of October 30, 2026
1M3MYTD1Y3Y5Y
Perf.-1.52%-3.40%+11.90%+13.76%+61.96%+30.05%
Flows+$42M+$79M+$73M+$105M+$59M+$459M
Data as of October 30, 2026
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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Characteristics

The State Street SPDR S&P 400 Mid Cap Growth ETF is built to track the S&P MidCap 400 Growth Total Return Index - USD. This ETF provides physical exposure - by owning its shares you earn the return of the securities composing the index (as the ETF holds them directly). This share class generates a stream of income by distributing dividends.

Management strategyPassive
StrategyLong Only
ProviderState Street Investment Management
N° of holdings247
Replication methodDirect (Physical)
Asset classEquity
Dividend policyDistributing
Trailing 12m distribution yield
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Inception dateNovember 8, 2005
ESGNo
TrackinsightTrackinsight

More data and info about MDYG on Trackinsight

Exposure

Data as of September 30, 2026

Diversification

20.18%

Total weight of top 15 holdings out of 247

Top 15 Holdings

Twilio, Inc.
2.52%
Okta, Inc.
1.95%
TechnipFMC plc
1.5%
nVent Electric Plc
1.46%
ATI, Inc.
1.45%
United Therapeutics Corp.
1.31%
XPO, Inc.
1.16%
Tenet Healthcare Corp.
1.16%
Roku, Inc.
1.13%
Curtiss-Wright Corp.
1.13%
Royal Gold, Inc.
1.12%
MACOM Technology Solutions Holdings, Inc.
1.11%
Woodward, Inc.
1.09%
Carpenter Technology Corp.
1.08%
Coeur Mining, Inc.
1.02%

Sectors

Technology
21.77%
Industrials
19.09%
Healthcare
15.65%
Finance
14.45%
Non-Energy Materials
9.29%
Other
19.74%

Countries

USA
94.63%
Other
5.37%
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Trading data

Last sale
11/2/2026 at 2:52 PM
$103.99
Previous close
$102.87
Consolidated volume
10/30/2026
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Average volume
30 days
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Average discount or premium
30 days
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Average Bid/Ask spread
30 days
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Volatility and drawdown

3M1Y3Y5Y
Volatility+15.17%+17.64%+18.87%+20.76%
Max drawdown
-10.14%-10.14%-25.46%-29.25%
Max drawdown duration
74d74d379d834d
Time to recover
N/AN/A246d623d

Replication quality

Data as of October 30, 2026
1-year trailing difference

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Tracking error
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Tracking difference
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1 year cumulative return difference
Best
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Worst
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daily return difference
Average
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Worst
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Frequently asked questions about MDYG

What type of ETF is MDYG?

MDYG is a Passive ETF that provides exposure to Equity assets. It is managed by State Street Investment Management.

What index does MDYG track?

MDYG tracks the S&P MidCap 400 Growth Total Return Index - USD, aiming to replicate its performance through full replication.

What does MDYG invest in?

This ETF provides exposure to Mid Cap US Equities. It is part of the segment: US Mid Cap Growth.

What is the expense ratio of MDYG?

The total expense ratio (TER) of MDYG is 0.15%, representing the annual fee charged by the fund manager.

When was MDYG launched?

MDYG was launched on November 8, 2005, marking its entry into the ETF market.

Who is the issuer of MDYG?

MDYG is issued by State Street Investment Management.

What is the AUM of MDYG?

As of October 30, 2026, MDYG manages $2.79 B, reflecting the total assets held in the fund.

How has MDYG performed recently?

As of October 30, 2026, MDYG delivered a return of -1.52% over the past month (1M performance), -3.4% over the past three months (3M), and 11.9% year-to-date (YTD).

What are the recent fund flows for MDYG?

As of October 30, 2026, MDYG has seen net flows of +$42M in the past month (1M flow) and +$73M year-to-date (YTD).

Does MDYG pay dividends?

As of October 30, 2026, MDYG has a trailing 12-month distribution yield of 0.68%.

How many holdings are in MDYG

As of September 30, 2026, MDYG holds 247 securities in its portfolio. This level of diversification can influence the fund’s risk profile and exposure to individual assets.

How diversified is MDYG?

As of September 30, 2026, MDYG holds 247 securities, with 20.18% of its assets concentrated in its top 15 holdings.

What are the top holdings of MDYG?

As of September 30, 2026, MDYG holds a portfolio of 247 underlyings, with its largest positions including Twilio, Inc., Okta, Inc. and TechnipFMC plc. These top holdings play a significant role in shaping the fund’s performance and exposure.

What countries or regions does MDYG invest in?

As of September 30, 2026, MDYG has its largest geographic exposures in USA.

What sectors or themes does MDYG focus on?

As of September 30, 2026, MDYG is primarily exposed to Technology, Industrials and Healthcare.

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