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

SecurityMDY / State Street SPDR S&P MIDCAP 400 ETF Trust
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership17,655 shares
Latest Disclosed Value $ 10,888,942
Wiley Bros.-aintree Capital, Llc reports 1.85% increase in ownership of MDY / State Street SPDR S&P MIDCAP 400 ETF Trust

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 17,655 shares of State Street SPDR S&P MIDCAP 400 ETF Trust (US:MDY) valued at $10,888,898 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 17,334 shares of State Street SPDR S&P MIDCAP 400 ETF Trust. This represents a change in shares of 1.85% during the quarter. The current value of the position is $12,102,502 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.

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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 17,655 321 1.85 10,889 4.13 0.0538
2026-02-17 2025-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 17,334 1,384 8.68 10,457 9.99 0.0547
2025-11-14 2025-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 15,950 3,289 25.98 9,506 32.54 0.0609
2025-08-14 2025-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 12,661 5,710 82.15 7,172 93.89 0.0550
2025-05-15 2025-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 6,951 785 12.73 3,700 4.46 0.0393
2025-02-14 2024-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 6,166 3,283 113.87 3,541 115.65 0.0425
2024-11-14 2024-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 2,883 1,749 154.23 1,642 170.96 0.0317
2024-07-24 2024-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,134 142 14.31 607 9.98 0.0266
2024-04-11 2024-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 992 -20 -1.98 552 7.41 0.0760
2024-01-09 2023-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,012 0 0.00 513 11.04 0.1251
2023-10-06 2023-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,012 -137 -11.92 462 -16.00 0.2157
2023-07-05 2023-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,149 0 0.00 550 4.56 0.2464
2023-04-06 2023-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,149 0 0.00 527 3.54 0.2533
2023-01-10 2022-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,149 437 61.38 509 77.62 0.2527
2022-10-11 2022-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 712 0 0.00 286 -2.72 0.1654
2022-07-06 2022-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 712 0 0.00 294 -15.76 0.1698
2022-04-26 2022-03-31 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 712 0 0.00 349 -5.42 0.1959
2022-04-11 2022-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 712 0 349 0.2514
2022-01-12 2021-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 712 137 23.83 369 33.21 0.2225
2021-10-07 2021-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 0 0.00 277 -1.77 0.1761
2021-07-12 2021-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 0 0.00 282 2.92 0.1825
2021-04-09 2021-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 0 0.00 274 13.69 0.1994
2021-01-11 2020-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 575 241 0.2025
2020-04-03 2020-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 0 -575 -100.00 0 -100.00
2020-01-10 2019-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 0 0.00 216 6.40 0.2570
2019-10-10 2019-09-30 13F/A-1 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 0 0.00 203 -0.49 0.2633
2019-10-04 2019-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 0 211
2019-07-10 2019-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 575 575 204 0.2816
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.