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

SecurityMDY / State Street SPDR S&P MIDCAP 400 ETF Trust
InstitutionCAPROCK Group, Inc.
Latest Disclosed Ownership3,819 shares
Latest Disclosed Value $ 2,361,538
CAPROCK Group, Inc. ownership in MDY / State Street SPDR S&P MIDCAP 400 ETF Trust

On May 11, 2026 - CAPROCK Group, Inc. filed a 13F-HR form disclosing ownership of 3,819 shares of State Street SPDR S&P MIDCAP 400 ETF Trust (US:MDY) valued at $2,355,406 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 3,819 shares of State Street SPDR S&P MIDCAP 400 ETF Trust. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,617,924 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)
2026-05-11 2026-03-31 13F STATE STR SPDR S&P MIDCAP 40 UTSER1 S&PDCRP 78467Y107 3,819 0 0.00 2,362 2.12 0.0573
2026-01-28 2025-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,819 -11 -0.29 2,313 1.45 0.0488
2025-11-06 2025-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,830 -150 -3.77 2,280 7.10 0.0562
2025-05-15 2025-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,980 161 4.22 2,129 -2.52 0.0649
2025-01-23 2024-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,819 0 0.00 2,183 0.05 0.0714
2024-11-07 2024-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,819 0 0.00 2,182 6.39 0.0794
2024-08-06 2024-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,819 -3 -0.08 2,051 -3.71 0.0834
2024-04-29 2024-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,822 1 0.03 2,131 9.46 0.1221
2024-01-18 2023-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,821 0 0.00 1,946 11.14 0.1244
2023-10-18 2023-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,821 0 0.00 1,751 -4.63 0.1325
2023-08-10 2023-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,821 0 0.00 1,836 4.56 0.1348
2023-04-26 2023-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,821 0 0.00 1,756 3.05 0.1361
2023-01-23 2022-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,821 -75 -1.93 1,705 8.40 0.1587
2022-11-07 2022-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,896 0 0.00 1,572 -2.84 0.1514
2022-07-26 2022-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,896 1 0.03 1,618 -15.73 0.1587
2022-04-12 2022-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,895 -15 -0.38 1,920 -5.42 0.1805
2022-01-18 2021-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,910 -20 -0.51 2,030 7.12 0.1673
2021-10-07 2021-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,930 0 0.00 1,895 -2.07 0.1693
2021-08-13 2021-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 3,930 3,050 346.59 1,935 359.62 0.1761
2021-04-29 2021-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 880 400 83.33 421 108.42 0.0460
2021-01-29 2020-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 480 480 202 0.0230
2020-02-04 2019-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 0 -723 -100.00 0 -100.00
2019-10-31 2019-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 723 1 0.14 256 -1.16 0.0500
2019-07-23 2019-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 722 -685 -48.69 259 -46.93 0.0506
2019-04-12 2019-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,407 487 52.93 488 74.29 0.0948
2019-01-29 2018-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 920 350 61.40 280 32.70 0.0644
2018-10-17 2018-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 570 0 0.00 211 3.43 0.0429
2018-07-23 2018-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 570 570 204 0.0431
2018-04-23 2018-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 0 -570 -100.00 0 -100.00
2018-01-17 2017-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 570 570 204 0.0397
2017-10-23 2017-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 0 -1,380 -100.00 0 -100.00
2017-07-27 2017-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 1,380 1,380 439 0.0975
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.