Open Now: The Global ETF Survey Take the Survey →

Advertisement
Advertisement
MDY
US Mid Cap
Passive
NYSE listed

State Street SPDR S&P MIDCAP 400 ETF Trust

The SPDR S&P MidCap 400 ETF Trust (MDY) seeks to track the price and yield performance of the S&P MidCap 400 Index, providing investors with diversified exposure to U.S. mid-cap equities. Managed by State Street Global...

MDY performance and flow charts

Last update 7/21/2026 at 1:30 PM
Live
Closed
Last price
$690.43
+$7.09 (+1.04%) Yesterday

Performance

-2.0-1.5-1.0-0.50.00.51.01.5%Jun 22Jun 29Jul 6Jul 13Jul 20

Flows

0 M100 M200 M300 M400 M500 M600 M
1 day price range
$683.70
$690.91
52 week price range
$567.26
$702.74
1W perf
-0.37%
YTD perf
+13.86%
YTD flows
-$601M
AuM
$26.73B
E/R
0.23%
TTM yield
1.03%
Find out how industry players manage ETF portfolios.  Discover our library of Model portfolios

Historic performance and flows

Data as of July 20, 2026
1M3MYTD1Y3Y5Y
Perf.-1.55%+2.32%+13.86%+20.06%+43.14%+50.98%
Flows+$55M+$16M-$601M-$469M-$520M-$1.95B
Data as of July 20, 2026
Advertisement

Get all the metrics on this page, and more, through a reliable ETF data feed

Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Characteristics

The State Street SPDR S&P MIDCAP 400 ETF Trust is built to track the S&P MidCap 400 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 holdings400
Replication methodDirect (Physical)
Asset classEquity
Dividend policyDistributing
Trailing 12m distribution yield
Join for free
Inception dateMay 4, 1995
ESGNo
TrackinsightTrackinsight

More data and info about MDY on Trackinsight

Exposure

Data as of June 30, 2026

Diversification

11.09%

Total weight of top 15 holdings out of 400

Top 15 Holdings

Twilio, Inc.
0.86%
Carpenter Technology Corp.
0.84%
MKS, Inc.
0.82%
Curtiss-Wright Corp.
0.77%
Entegris, Inc.
0.75%
nVent Electric Plc
0.75%
ATI, Inc.
0.74%
Illumina, Inc.
0.73%
TechnipFMC plc
0.72%
Sterling Infrastructure, Inc.
0.7%
MasTec, Inc.
0.7%
Woodward, Inc.
0.69%
MACOM Technology Solutions Holdings, Inc.
0.68%
Everpure, Inc.
0.68%
XPO, Inc.
0.66%

Sectors

Finance
21.51%
Industrials
18.53%
Technology
15.28%
Non-Energy Materials
10.61%
Healthcare
8.49%
Other
25.58%

Countries

USA
95.41%
Other
4.59%
Advertisement

Trading data

Last sale
7/21/2026 at 1:30 PM
$690.43
Previous close
$683.34
Consolidated volume
07/20/2026
Join for free
Average volume
30 days
Join for free
Average discount or premium
30 days
Join for free
Average Bid/Ask spread
30 days
Join for free

Volatility and drawdown

3M1Y3Y5Y
Volatility+14.82%+15.75%+17.80%+19.77%
Max drawdown
-4.24%-8.78%-23.91%-23.91%
Max drawdown duration
26d53d379d379d
Time to recover
14d18d246d246d

Replication quality

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

Create an account to view replication metrics

Join for free
Tracking error
Join for free
Tracking difference
Join for free
1 year cumulative return difference
Best
Join for free
Worst
Join for free
daily return difference
Average
Join for free
Worst
Join for free
Advertisement
Frequently asked questions about MDY

What type of ETF is MDY?

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

What index does MDY track?

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

What does MDY invest in?

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

What is the expense ratio of MDY?

The total expense ratio (TER) of MDY is 0.23%, representing the annual fee charged by the fund manager.

When was MDY launched?

MDY was launched on May 4, 1995, marking its entry into the ETF market.

Who is the issuer of MDY?

MDY is issued by State Street Investment Management.

What is the AUM of MDY?

As of July 20, 2026, MDY manages $26.73 B, reflecting the total assets held in the fund.

How has MDY performed recently?

As of July 20, 2026, MDY delivered a return of -1.55% over the past month (1M performance), 2.32% over the past three months (3M), and 13.86% year-to-date (YTD).

What are the recent fund flows for MDY?

As of July 20, 2026, MDY has seen net flows of +$55M in the past month (1M flow) and -$601M year-to-date (YTD).

Does MDY pay dividends?

As of July 20, 2026, MDY has a trailing 12-month distribution yield of 1.03%.

How many holdings are in MDY

As of June 30, 2026, MDY holds 400 securities in its portfolio. This level of diversification can influence the fund’s risk profile and exposure to individual assets.

How diversified is MDY?

As of June 30, 2026, MDY holds 400 securities, with 11.09% of its assets concentrated in its top 15 holdings.

What are the top holdings of MDY?

As of June 30, 2026, MDY holds a portfolio of 400 underlyings, with its largest positions including Twilio, Inc., Carpenter Technology Corp. and MKS, Inc.. These top holdings play a significant role in shaping the fund’s performance and exposure.

What countries or regions does MDY invest in?

As of June 30, 2026, MDY has its largest geographic exposures in USA.

What sectors or themes does MDY focus on?

As of June 30, 2026, MDY is primarily exposed to Finance, Industrials and Technology.

The ETF Institute® is now affiliated with ETF Central

The CETF certification is the only FINRA listed professional designation focused on ETFs.

ETF Institute
Advertisement
Advertisement
ETF U
Become a better investor with NYSE: The Home of ETFs
Visit the ETF U homepage
ETF Guides
Advertisement

Recent educational content

Tidal ETF Industry KPIs

ETF Trends

ETF Industry KPIs July 20, 2026

This week’s KPI data overview highlights key metrics and trends shaping the ETF landscape.

Tidal
By Tidal · July 20, 2026
Tidal ETF Industry KPIs

ETF Trends

ETF Industry KPIs July 13, 2026

This week’s KPI data overview highlights key metrics and trends shaping the ETF landscape.

Tidal
By Tidal · July 14, 2026
First Look ETF: Cash Deployment, Bond, and Hedged ETFs

First Look ETF

First Look ETF: Cash Deployment, Bond, and Hedged ETFs

In this season 6 episode of First Look ETF, Stephanie Stanton ‪examines the latest ETF marketplace trends with NYSE and guests.

ETF Guide
By ETF Guide · July 10, 2026
Tidal ETF Industry KPIs

ETF Trends

ETF Industry KPIs July 6, 2026

This week’s KPI data overview highlights key metrics and trends shaping the ETF landscape.

Tidal
By Tidal · July 7, 2026

Browse all educational columns

Advertisement
The Active Trader Report

Active Trader Report: Use of Leveraged & Inverse ETFs Way Up

Direxion partnered with Compound Insights and Vanda to explore what’s driving the evolution of active trading — and how active traders are using leveraged and inverse funds across equities, single stocks, commodities, and volatility.

Active Trader Report: Use of Leveraged & Inverse ETFs Way Up