State Street SPDR S&P MIDCAP 400 ETF Trust
US ˙ ARCA ˙ US78467Y1073

SecurityMDY / State Street SPDR S&P MIDCAP 400 ETF Trust
InstitutionMorgan Stanley
Latest Disclosed Ownership1,543,597 shares
Latest Disclosed Value $ 952,029,823
Morgan Stanley reports 38.36% increase in ownership of MDY / State Street SPDR S&P MIDCAP 400 ETF Trust

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,543,597 shares of State Street SPDR S&P MIDCAP 400 ETF Trust (US:MDY) valued at $952,028,886 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,115,655 shares of State Street SPDR S&P MIDCAP 400 ETF Trust. This represents a change in shares of 38.36% during the quarter. The current value of the position is $1,041,295,100 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F STATE STR SPDR S&P MIDCAP 40 UTSER1 S&PDCRP 78467Y107 1,543,597 427,942 38.36 952,030 41.45 0.0574
2026-05-27 2025-12-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,115,655 -664,749 -37.34 673,053 -36.57 0.0402
2026-02-13 2025-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,115,655 -664,749 673,053 0.0402
2026-05-27 2025-09-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,780,404 458,372 34.67 1,061,175 41.70 0.0642
2025-11-14 2025-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,780,404 458,372 1,061,175 0.0642
2025-08-15 2025-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,322,032 270,488 25.72 748,906 33.50 0.0488
2025-05-15 2025-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,051,544 -75,713 -6.72 560,978 -12.63 0.0401
2025-05-15 2024-12-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,127,257 -87,043 -7.17 642,064 -7.18 0.0450
2025-02-14 2024-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,127,257 -87,043 642,064 0.0450
2025-05-14 2024-09-30 13F/A-2 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,214,300 66,423 5.79 691,739 12.62 0.0502
2025-02-14 2024-09-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,214,300 66,423 691,739 0.0502
2024-11-14 2024-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,214,300 66,423 691,739 0.0060
2025-05-14 2024-06-30 13F/A-2 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,147,877 -486,871 -29.78 614,207 -32.47 0.0475
2024-10-17 2024-06-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,147,877 -486,871 614,207 0.0475
2024-08-14 2024-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,147,877 -486,871 614,207 0.0475
2024-10-17 2024-03-31 13F/A-2 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,634,748 89,808 5.81 909,575 16.04 0.0730
2024-08-16 2024-03-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,634,748 89,808 909,575 0.0085
2024-05-15 2024-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,634,748 89,808 909,575 0.0730
2024-08-16 2023-12-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,544,940 282,442 22.37 783,872 35.97 0.0691
2024-02-13 2023-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,544,940 282,442 783,872 0.0691
2023-11-15 2023-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,262,498 -78,172 -5.83 576,507 -10.21 0.0586
2023-08-14 2023-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,340,670 70,708 5.57 642,061 10.29 0.0633
2023-05-15 2023-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,269,962 129,058 11.31 582,164 15.24 0.0624
2023-02-14 2022-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,140,904 86,561 8.21 505,181 19.29 0.0574
2022-11-14 2022-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,054,343 84,219 8.68 423,487 5.57 0.0577
2022-10-27 2022-06-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 970,124 -149,094 -13.32 401,137 -26.92 0.0521
2022-08-15 2022-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 970,124 -149,094 401,137 0.0105
2022-10-27 2022-03-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,119,218 67,358 6.40 548,920 0.81 0.0740
2022-05-13 2022-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,119,218 67,358 548,920 0.0740
2022-02-14 2021-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,051,860 -29,581 -2.74 544,527 4.71 0.0672
2021-11-15 2021-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,081,441 102,335 10.45 520,043 8.17 0.0700
2021-08-23 2021-06-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 979,106 22,408 2.34 480,751 5.56 0.0634
2021-08-16 2021-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 979,106 22,408 480,751 0.0132
2021-05-17 2021-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 956,698 -98,716 -9.35 455,436 2.76 0.0669
2021-02-16 2020-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,055,414 116,401 12.40 443,190 39.30 0.0684
2020-11-13 2020-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 939,013 -2,162 -0.23 318,166 4.18 0.0615
2020-08-14 2020-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 941,175 -183,892 -16.34 305,403 3.26 0.0676
2020-05-26 2020-03-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,125,067 -64,200 -5.40 295,758 -33.75 0.0804
2020-05-15 2020-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,125,067 -64,200 295,758 22,720.3799
2020-02-14 2019-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,189,267 -32,150 -2.63 446,427 3.70 0.1038
2019-11-14 2019-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,221,417 295,154 31.87 430,512 31.08 0.1140
2019-08-14 2019-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 926,263 -29,878 -3.12 328,445 -0.55 0.0874
2019-05-15 2019-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 956,141 -73,530 -7.14 330,251 5.97 0.0935
2019-02-14 2018-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,029,671 -125,566 -10.87 311,650 -26.58 0.0933
2019-04-23 2018-09-30 13F/A-2 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,155,237 -261,315 -18.45 424,503 -15.59 0.1062
2018-11-20 2018-09-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,155,237 0 424,503 0.1062
2018-11-14 2018-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,155,237 -261,315 424,503
2019-04-23 2018-06-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,416,552 227,920 19.17 502,903 23.81 0.1359
2018-08-14 2018-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,416,552 227,920 502,903
2019-04-23 2018-03-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,188,632 -49,092 -3.97 406,192 -4.99 0.1127
2018-05-14 2018-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,188,632 -49,092 406,192
2019-04-23 2017-12-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,237,724 -441,092 -26.27 427,522 -21.96 0.1170
2018-02-14 2017-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,237,724 -441,092 427,522
2017-11-14 2017-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,678,816 -622,096 -27.04 547,848 -25.04 0.1641
2017-08-11 2017-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 2,300,912 849,297 58.51 730,816 61.15 0.2208
2017-05-22 2017-03-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,451,615 -431,673 -22.92 453,514 -20.19 0.1394
2017-05-12 2017-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,451,615 453,514
2017-02-22 2016-12-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,883,288 214,640 12.86 568,245 20.64 0.1860
2017-02-13 2016-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,883,288 568,245
2016-11-10 2016-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,668,648 537,249 47.49 471,010 52.92 0.1609
2016-08-12 2016-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,131,399 -114,008 -9.15 308,003 -5.86 0.1113
2016-05-12 2016-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,245,407 -466,549 -27.25 327,192 -24.77 0.1259
2016-02-09 2015-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,711,956 489,193 40.01 434,906 42.90 0.1574
2016-02-08 2015-09-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,222,763 -108,548 -8.15 304,333 -16.33 0.1125
2015-11-09 2015-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,222,763 304,333
2015-08-12 2015-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,331,311 235,414 21.48 363,715 19.71 0.1261
2015-05-14 2015-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,095,897 170,172 18.38 303,828 24.33 0.1119
2015-02-13 2014-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 925,725 -64,722 -6.53 244,364 -1.04 0.0894
2014-12-16 2014-09-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 990,447 -1,014,775 -50.61 246,938 -50.85 0.0950
2014-11-14 2014-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 990,447 246,938
2014-05-13 2014-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 2,005,222 1,092,808 119.77 502,448 125.50 0.2104
2014-02-13 2013-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 912,414 85,720 10.37 222,811 19.08 0.0948
2013-11-13 2013-09-30 13F SPDR S&P MIDCAP 400 ETUTSER COM 78467Y107 826,694 8,795 1.08 187,106 8.88 0.0884
2013-08-08 2013-06-30 13F SPDR S&P MIDCAP 400 ETUTSER COM 78467Y107 817,899 817,899 171,842 0.0867
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.