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

SecurityMDY / State Street SPDR S&P MIDCAP 400 ETF Trust
InstitutionArvest Bank Trust Division
Latest Disclosed Ownership227,616 shares
Latest Disclosed Value $ 140,384,443
Arvest Bank Trust Division reports 1.85% decrease in ownership of MDY / State Street SPDR S&P MIDCAP 400 ETF Trust

On May 13, 2026 - Arvest Bank Trust Division filed a 13F-HR form disclosing ownership of 227,616 shares of State Street SPDR S&P MIDCAP 400 ETF Trust (US:MDY) valued at $140,384,444 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 231,907 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 $153,547,477 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)
2026-05-13 2026-03-31 13F STATE STR SPDR S&P MIDCAP 40 UTSER1 S&PDCRP 78467Y107 227,616 -4,291 -1.85 140,384 0.34 7.6290
2026-02-09 2025-12-31 13F STATE STR SPDR S&P MIDCAP 40 UTSER1 S&PDCRP 78467Y107 231,907 -721 -0.31 139,905 0.90 7.5752
2025-11-07 2025-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 232,628 704 0.30 138,653 5.54 7.6906
2025-08-08 2025-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 231,924 772 0.33 131,380 6.54 7.6643
2025-05-14 2025-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 231,152 -3,359 -1.43 123,315 -7.68 7.7981
2025-02-13 2024-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 234,511 -6,034 -2.51 133,573 -2.52 8.0505
2024-11-25 2024-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 240,545 -60,840 -20.19 137,029 -5.45 7.8977
2021-11-12 2021-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 301,385 -6,900 -2.24 144,930 -4.26 8.1299
2021-08-19 2021-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 308,285 -8,537 -2.69 151,371 0.36 8.3420
2021-04-13 2021-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 316,822 -94,019 -22.88 150,823 -12.58 8.7761
2021-02-17 2020-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 410,841 -10,271 -2.44 172,521 20.91 10.7177
2020-11-30 2020-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 421,112 -7,410 -1.73 142,685 2.61 10.2187
2020-08-21 2020-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 428,522 -29,563 -6.45 139,051 15.47 10.2929
2020-04-14 2020-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 458,085 -35,389 -7.17 120,421 -34.99 11.1427
2020-01-14 2019-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 493,474 3,380 0.69 185,240 7.23 11.8938
2019-10-18 2019-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 490,094 1,087 0.22 172,743 -0.38 11.8482
2019-07-19 2019-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 489,007 -4,102 -0.83 173,397 1.81 11.8469
2019-04-12 2019-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 493,109 12,703 2.64 170,320 17.13 11.7875
2019-01-18 2018-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 480,406 14,808 3.18 145,405 -15.01 11.5810
2018-10-30 2018-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 465,598 -6,840 -1.45 171,088 2.01 11.6012
2018-07-18 2018-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 472,438 -1,319 -0.28 167,725 3.60 11.9397
2018-05-11 2018-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 473,757 -703 -0.15 161,897 -1.21 11.4699
2018-01-22 2017-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 474,460 1,445 0.31 163,884 6.17 11.4494
2017-10-06 2017-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 473,015 22,271 4.94 154,359 7.82 11.0075
2017-07-12 2017-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 450,744 26,706 6.30 143,165 8.07 10.8578
2017-04-17 2017-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 424,038 -13,241 -3.03 132,478 0.41 10.3901
2017-01-09 2016-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 437,279 -13,654 -3.03 131,940 3.66 10.5676
2016-10-07 2016-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 450,933 -653 -0.14 127,285 3.54 10.5780
2016-08-16 2016-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 451,586 14,790 3.39 122,935 7.13 10.5721
2016-04-27 2016-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 436,796 16,227 3.86 114,755 7.41 9.7173
2016-02-08 2015-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 420,569 11,727 2.87 106,841 5.00 9.2947
2015-10-13 2015-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 408,842 18,655 4.78 101,756 -4.54 9.2006
2015-07-07 2015-06-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 390,187 496 0.13 106,599 -1.33 9.0240
2015-04-21 2015-03-31 13F/A-2 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 389,691 389,691 0.00 108,037 9.2409
2015-04-21 2015-03-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 381,787 100,357
2015-02-02 2014-12-31 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 0 -375,931 -100.00 0 -100.00
2014-11-19 2014-09-30 13F SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 375,931 375,931 93,727 8.6341
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.