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Launched · SEC filings

State Street SPDR S&P MIDCAP 400 ETF Trust

MDYNYSE ArcaB

$668.12+0.82 (+0.12%)

At close: Oct 13, 2026, 4:00 PM

B66/ 100

Rank 4 of 11 in S&P MidCap 400

B66/100Rank 4 of 11inS&P MidCap 400
Intraday session: up, 79 prints from 667.30 to 668.12. Range 663.28 to 669.85. Use the arrow keys to read each point.664.00666.00670.0010 AM12 PM2 PM4 PM
Expense ratio
0.23%
Fund size
$25.8B
1Y total return
+16.8%
Yield · Last 12 months
1.05%
Holdings
401
Avg volume · 30D
0.7M sh
NAV per share
$669.83
52W range
low $568.21high $717.35
Launched
Filings
SEC EDGAR

The ETF.net MDY Grade

B

Score 66 out of 100

Category
S&P MidCap 400⁠
Rank
4 of 11
Six-pillar profile for MDY. Scores out of 100: Cost 24, Risk 53, Mission 100, Tradability 93, Holdings 84, Durability 76. Strongest: Mission (100). Weakest: Cost (24). Leans toward Mission.

Score 66 of 100 falls in the B band. A is 70 or higher, B 55 to under 70, C 40 to under 55, D 25 to under 40, F under 25.

  • Cost

    The fund’s net expense ratio, ranked against its category.
    F24 out of 100
    Rank 9 of 11

  • Mission

    Whether the fund did what it promised, tested against its stated mandate.
    A100 out of 100
    Rank 1 of 11

  • Risk

    How the fund held up when markets fell: downside volatility, drawdowns and tail loss.
    C53 out of 100
    Rank 2 of 11

  • Tradability

    How easy the fund is to trade: daily volume, and how far its price strays from net asset value.
    A93 out of 100
    Rank 1 of 11

  • Holdings

    How concentrated the fund is, and how complete and current its disclosed holdings are.
    A84 out of 100
    Rank 1 of 11

  • Durability

    Whether the fund is likely to stay open, judged by its age, its assets and its issuer’s assets.
    A76 out of 100
    Rank 2 of 11

Our read on MDY

ETF.net Research

BLaunched in 1995, MDY was the original one-ticker route into the S&P MidCap 400, and it still trades like a heavyweight. The trade-off: a fee set in an era before same-index clones charged pennies.

Stated mandate

The fund seeks to track, before expenses, the price and yield performance of the S&P MidCap 400 Index.

Why people hold it

  1. 01A 1995 launch makes it one of the oldest ETFs on the US market, and it is still a multi-billion-dollar, actively traded way to own mid-size America.
  2. 02Tracking is about as tight as this group gets: roughly 400 mid-size US companies, held with minimal drift from the S&P MidCap 400 Index it follows.ssga.com
  3. 03Built as a 1940 Act unit investment trust, so it holds the index as published rather than a sample, and passes cash through to holders quarterly.

Worth knowing

  1. 01It charges 0.23%, above the cohort median and several times what same-index options like SPMD (0.03%) and IJH (0.05%) cost. Identical index, different bill.
  2. 02The trust structure cannot lend out holdings or reinvest dividends between quarterly payouts, small frictions that newer open-end fund structures avoid.
  3. 03Pure mid-cap exposure, no large-cap ballast: the swings here tend to run wider than a broad S&P 500 or total-market fund.

MDY Holdings

As of Oct 12, 2026
Asset class
Stocks
Holdings
401
Top-10 weight
8%
Largest holding
OKTA1.1%

Sectors

  • Industrials22.2%
  • Technology17.1%
  • Financials13.4%
  • Health Care10.8%
  • Consumer Discretionary10.4%
  • Real Estate7.7%
  • Energy5.5%
  • Materials5.2%
  • Consumer Staples3.4%
  • Utilities2.8%
  • Communication1.6%

Geography

  • United States96.31%
  • United Kingdom1.80%
  • Bermuda0.72%
  • Cayman Islands0.52%
  • Ireland0.44%
  • Sweden0.21%
The fund’s holdings, weight-ordered — page 1 of 27.
#TickerCompanyWeight %SharesMarket valueIn ETFs
001OKTAOkta Inc. Class A1.11%1,242,021$288M260
002CASH_USDU.S. Dollar0.90%233,890,765$233M1
003FTITechnipFMC plc0.79%2,932,076$203M266
004NVTnVent Electric plc0.78%1,210,153$202M251
005ATIATI Inc0.75%1,018,096$195M221
006ENTGEntegris Inc.0.73%1,142,432$189M216
007UTHRUnited Therapeutics Corporation0.68%320,680$176M266
008MTSIMACOM Technology Solutions Holdings Inc.0.66%519,613$171M201
009SNXTD SYNNEX Corporation0.63%597,826$163M230
010XPOXPO Inc.0.62%875,411$160M203
011THCTenet Healthcare Corporation0.61%602,014$158M218
012USFDUS Foods Holding Corp.0.61%1,617,432$157M189
013RSReliance Inc.0.59%381,721$153M234
014ROKURoku Inc. Class A0.58%987,300$151M154
015NTNXNutanix Inc. Class A0.58%2,021,093$150M189

Showing 1–15 of 401 holdings

MDY Performance

Launched May 4, 1995

Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.

MDY$11,677
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$12,044
Oct 10, 2025 to Oct 12, 2026. MDY $11,677. SPY $12,044. Use the arrow keys to read each point.$9,546$11,140$12,735Oct 2025Apr 2026Oct 2026

Oct 10, 2025 – Oct 12, 2026

Returns run to the Oct 12, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.

Trailing total return for MDY. Periods over one year show the average yearly return.
PeriodMDY
Year to date+11.4%
1 month−1.4%
3 months−3.0%
1 year+16.8%
3 yearsper year+15.5%
5 yearsper year+7.7%
10 yearsper year+10.6%

As of the close, with distributions reinvested.

Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.

Annual total returns for MDY
YearReturn barMDY
2026 YTD+11.4%
2025+7.2%
2024+13.6%
2023+16.1%
2022−13.3%
2021+24.5%
2020+13.5%

MDY in the news

Filtered to MDY · S&P MidCap 400

MDY Dividends

Adds up every distribution paid per share over the last 12 months, divided by the last completed close. Distributions are counted by ex-date. Data through Oct 12, 2026.
1.05%Last 12 months
Payout per share
$7.01Last 12 months
Upcoming payment
$1.60 per share
Pays on
Shares bought on or after this date do not qualify for this distribution.
Frequency
Quarterly

Distribution history

2017–2026

One bar per payment. 39 payments from 2017 to 2026 YTD. Mar 17, 2017 $0.82; Jun 16, 2017 $0.52; Sep 15, 2017 $1.45; Dec 15, 2017 $1.30; Mar 16, 2018 $0.86; Jun 15, 2018 $1.01; Sep 21, 2018 $1.06; Dec 21, 2018 $1.27; Mar 15, 2019 $0.88; Jun 21, 2019 $1.34; Sep 20, 2019 $1.37; Dec 20, 2019 $1.45; Mar 20, 2020 $1.11; Jun 19, 2020 $1.12; Sep 18, 2020 $1.03; Dec 18, 2020 $1.45; Mar 19, 2021 $0.86; Jun 18, 2021 $1.28; Sep 17, 2021 $1.31; Dec 17, 2021 $1.49; Mar 18, 2022 $1.15; Jun 17, 2022 $1.40; Sep 16, 2022 $1.83; Dec 16, 2022 $1.67; Mar 17, 2023 $1.19; Jun 16, 2023 $1.51; Sep 15, 2023 $1.55; Dec 15, 2023 $1.89; Mar 15, 2024 $1.01; Jun 21, 2024 $2.00; Sep 20, 2024 $1.65; Dec 20, 2024 $2.08; Mar 21, 2025 $1.31; Jun 20, 2025 $1.80; Sep 19, 2025 $1.62; Dec 19, 2025 $2.18; Mar 20, 2026 $1.52; Jun 18, 2026 $1.70; Sep 18, 2026 $1.60. Use the arrow keys to read each point.2017201820192020202120222023202420252026YTD
Ex-datePay dateAmount per share
Sep 18, 2026Pays Oct 30, 2026$1.60
Jun 18, 2026Jul 31, 2026$1.70
Mar 20, 2026Apr 30, 2026$1.52
Dec 19, 2025Jan 30, 2026$2.18
Sep 19, 2025Oct 31, 2025$1.62
Jun 20, 2025Jul 31, 2025$1.80
Mar 21, 2025Apr 30, 2025$1.31
Dec 20, 2024Jan 31, 2025$2.08
Sep 20, 2024Oct 31, 2024$1.65
Jun 21, 2024Jul 31, 2024$2.00
Mar 15, 2024Apr 30, 2024$1.01
Dec 15, 2023Jan 31, 2024$1.89

MDY Risk

How much the fund’s monthly returns vary, scaled to a year.
15.5%
Annualised · 36 months to Sep 2026
How it’s calculated: standard deviation

The sample standard deviation of monthly total returns, multiplied by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.

Return above 3-month US Treasury bills per unit of volatility.
0.65
vs 3-month T-bills · to Sep 2026
How it’s calculated: Sharpe ratio

Subtract each month’s Treasury-bill return from the fund’s monthly total return.

Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.

The largest fall from a peak to the low that followed.
−24.0%
Trough Apr 2025
How it’s calculated: maximum drawdown

The largest percentage decline from an earlier peak, using total returns with reinvested distributions.

Uses up to five years through the last close, with at least 12 months required.

How strongly the fund’s returns move with its asset-class index.
1.01
vs its asset-class index
How it’s calculated: beta

The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.

MDY Cost

Expense ratio0.23%
  • The middle half of S&P MidCap 400 funds
  • Median 0.15%

8 of the 11 S&P MidCap 400 funds charge less.

MDY costs $23.00 a year on $10,000. The median S&P MidCap 400 fund costs $15.00.

Other funds in S&P MidCap 400

See others