The Select Sector SPDR Trust - State Street Materials Select Sector SPDR ETF
US ˙ ARCA ˙ US81369Y1001

SecurityXLB / The Select Sector SPDR Trust - State Street Materials Select Sector SPDR ETF
InstitutionBokf, Na
Latest Disclosed Ownership3,384 shares
Latest Disclosed Value $ 169,098
Bokf, Na ownership in XLB / The Select Sector SPDR Trust - State Street Materials Select Sector SPDR ETF

On May 8, 2026 - Bokf, Na filed a 13F-HR form disclosing ownership of 3,384 shares of The Select Sector SPDR Trust - State Street Materials Select Sector SPDR ETF (US:XLB) valued at $169,098 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 3,384 shares of The Select Sector SPDR Trust - State Street Materials Select Sector SPDR ETF. This represents a change in shares of 0.00% during the quarter. The current value of the position is $174,682 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)
2026-05-08 2026-03-31 13F STATE STREET MATERIALS SELECT common 81369Y100 3,384 0 0.00 169 10.46 0.0020
2026-02-03 2025-12-31 13F STATE STREET MATERIALS SELECT common 81369Y100 3,384 1,617 91.51 153 -3.16 0.0023
2025-11-13 2025-09-30 13F SPDR MATERIALS SELECT SECTOR common 81369Y100 1,767 0 0.00 158 1.94 0.0024
2025-08-12 2025-06-30 13F SPDR MATERIALS SELECT SECTOR common 81369Y100 1,767 -1,773 -50.08 155 -49.01 0.0025
2025-05-13 2025-03-31 13F SPDR MATERIALS SELECT SECTOR common 81369Y100 3,540 -240 -6.35 304 -3.18 0.0054
2025-02-14 2024-12-31 13F SPDR MATERIALS SELECT SECTOR common 81369Y100 3,780 0 0.00 315 -12.29 0.0053
2024-11-14 2024-09-30 13F SPDR MATERIALS SELECT SECTOR common 81369Y100 3,780 1,000 35.97 358 46.12 0.0064
2024-08-08 2024-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 2,780 -117 -4.04 246 -8.58 0.0044
2024-05-15 2024-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 2,897 -316 -9.84 268 -2.19 0.0049
2024-02-14 2023-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 3,213 -500 -13.47 275 -2.84 0.0054
2023-11-14 2023-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 3,713 -695 -15.77 282 -22.74 0.0062
2023-08-21 2023-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,408 -652 -12.89 365 -10.54 0.0074
2023-05-11 2023-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 5,060 -1,095 -17.79 408 -14.64 0.0085
2023-02-13 2022-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,155 118 1.95 478 16.59 0.0088
2022-11-14 2022-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,037 349 6.14 410 -2.15 0.0083
2022-08-11 2022-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 5,688 -266 -4.47 419 -20.19 0.0080
2022-05-13 2022-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 5,954 -2,408 -28.80 525 -30.74 0.0087
2022-03-11 2021-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 8,362 -824 -8.97 758 4.26 0.0117
2021-11-10 2021-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 9,186 2,213 31.74 727 32.42 0.0125
2021-04-21 2021-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,973 2,165 45.03 549 57.76 0.0100
2021-02-12 2020-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,808 214 4.66 348 19.18 0.0066
2020-10-30 2020-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,594 4,594 -86.05 292 -83.60 0.0064
2019-02-13 2018-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 0 -4,263 -100.00 0 -100.00
2018-11-13 2018-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,263 162 3.95 247 3.78 0.0062
2018-08-13 2018-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,101 493 13.66 238 16.10 0.0064
2018-05-14 2018-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 3,608 -248 -6.43 205 -12.39 0.0058
2018-02-14 2017-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 3,856 -373 -8.82 234 -2.50 0.0064
2017-11-14 2017-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,229 299 7.61 240 13.21 0.0070
2017-08-14 2017-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 3,930 -459 -10.46 212 -7.83 0.0067
2017-05-15 2017-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,389 146 3.44 230 9.00 0.0072
2017-02-14 2016-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,243 -1,135 -21.10 211 -17.90 0.0069
2016-11-10 2016-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 5,378 -999 -15.67 257 -13.18 0.0085
2016-08-12 2016-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,377 -272 -4.09 296 -0.67 0.0104
2016-05-13 2016-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,649 -99 -1.47 298 1.71 0.0108
2016-02-09 2015-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,748 6,748 0.00 293 0.0106
2015-11-13 2015-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 0 -6,501 -100.00 0 -100.00
2015-08-13 2015-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,501 485 8.06 315 7.14 0.0107
2015-05-14 2015-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,016 6,016 0.00 294 0.0099
2015-02-12 2014-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 0 -6,710 -100.00 0 -100.00
2014-11-13 2014-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 6,710 1,648 32.56 332 32.27 0.0111
2014-08-14 2014-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 5,062 451 9.78 251 15.14 0.0081
2014-05-14 2014-03-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,611 0 0.00 218 2.35 0.0072
2014-02-14 2013-12-31 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 4,611 4,611 -11.97 213 5.97 0.0071
2013-11-12 2013-09-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 0 -5,238 -100.00 0 -100.00
2013-08-14 2013-06-30 13F SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 5,238 5,238 201 0.0076
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.