SPDR Series Trust - State Street SPDR Bloomberg International Treasury Bond ETF
US ˙ ARCA ˙ US78464A5166

SecurityBWX / SPDR Series Trust - State Street SPDR Bloomberg International Treasury Bond ETF
InstitutionAssetmark, Inc
Latest Disclosed Ownership206,597 shares
Latest Disclosed Value $ 4,534,803
Assetmark, Inc reports 3.03% increase in ownership of BWX / SPDR Series Trust - State Street SPDR Bloomberg International Treasury Bond ETF

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 206,597 shares of SPDR Series Trust - State Street SPDR Bloomberg International Treasury Bond ETF (US:BWX) valued at $4,534,804 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 200,518 shares of SPDR Series Trust - State Street SPDR Bloomberg International Treasury Bond ETF. This represents a change in shares of 3.03% during the quarter. The current value of the position is $4,522,408 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)
2026-05-06 2026-03-31 13F SPDR SERIES TRUST BLOOMBERG INTL T 78464A516 206,597 6,079 3.03 4,535 0.38 0.0092
2026-01-23 2025-12-31 13F SPDR SERIES TRUST BLOOMBERG INTL T 78464A516 200,518 162,182 423.05 4,518 412.71 0.0092
2025-11-06 2025-09-30 13F SPDR SER TR BLOOMBERG INTL T 78464A516 38,336 16 0.04 882 -2.11 0.0019
2025-08-04 2025-06-30 13F SPDR SER TR BLOOMBERG INTL T 78464A516 38,320 -72,337 -65.37 900 -62.78 0.0021
2025-05-06 2025-03-31 13F SPDR SER TR BLOOMBERG INTL T 78464A516 110,657 392 0.36 2,419 2.54 0.0066
2025-02-06 2024-12-31 13F SPDR SER TR BLOOMBERG INTL T 78464A516 110,265 -589 -0.53 2,359 -8.92 0.0064
2024-11-01 2024-09-30 13F SPDR SER TR BLOOMBERG INTL T 78464A516 110,854 -1,401 -1.25 2,590 7.65 0.0074
2024-08-13 2024-06-30 13F SPDR SER TR BLOOMBERG INTL T 78464A516 112,255 769 0.69 2,406 -2.99 0.0074
2024-05-07 2024-03-31 13F SPDR SER TR BLOOMBERG INTL T 78464A516 111,486 10,782 10.71 2,479 6.21 0.0081
2024-02-09 2023-12-31 13F SPDR SER TR BLOOMBERG INTL T 78464A516 100,704 1,778 1.80 2,334 11.09 0.0084
2023-10-27 2023-09-30 13F SPDR SER TR BLOOMBERG INTL T 78464A516 98,926 -1,087 -1.09 2,101 -6.83 0.0084
2023-08-11 2023-06-30 13F SPDR SER TR BLOOMBERG INTL T BLOOMBERG INTL T 78464A516 100,013 -551 -0.55 2,255 -3.01 0.0088
2023-05-05 2023-03-31 13F SPDR SER TR BLOOMBERG INTL T BLOMBERG INTL TR 78464A516 100,564 -80,140 -44.35 2,325 -42.64 0.0096
2023-02-10 2022-12-31 13F SPDR SER TR BLOOMBERG INTL T 78464A516 180,704 -101,718 -36.02 4,053 -31.11 0.0176
2022-11-01 2022-09-30 13F SPDR SER TR BLOOMBERG INTL T 78464A516 282,422 -97,546 -25.67 5,883 -33.15 0.0275
2022-08-03 2022-06-30 13F SPDR SER TR BLOOMBERG INTL T BLOOMBERG INTL T 78464A516 379,968 40,321 11.87 8,800 -0.46 0.0395
2022-05-13 2022-03-31 13F SPDR SER TR BLOOMBERG INTL T BLOOMBERG INTL T 78464A516 339,647 33,145 10.81 8,841 2.03 0.0370
2022-02-14 2021-12-31 13F SPDR SER TR BLOOMBERG INTL T BLOOMBERG INTL T 78464A516 306,502 43,300 16.45 8,665 14.59 0.0356
2021-11-12 2021-09-30 13F SPDR SER TR BLOMBERG INTL TR ETF 78464A516 263,202 6,975 2.72 7,562 0.56 0.0339
2021-08-16 2021-06-30 13F SPDR SER TR BLOMBERG INTL TR ETF 78464A516 256,227 5,784 2.31 7,520 3.04 0.0349
2021-05-14 2021-03-31 13F SPDR SER TR ETF 78464A516 250,443 22,214 9.73 7,298 2.38 0.0376
2021-02-10 2020-12-31 13F SPDR SER TR BLOMBERG INTL TR ETF 78464A516 228,229 -63,743 -21.83 7,128 -17.72 0.0397
2020-11-13 2020-09-30 13F SPDR SER TR BLOMBERG INTL TR ETF 78464A516 291,972 121,550 71.32 8,663 75.83 0.0559
2020-08-11 2020-06-30 13F SPDR SER TR BLOMBERG INTL TR ETF 78464A516 170,422 -76,446 -30.97 4,927 -28.21 0.0352
2020-05-12 2020-03-31 13F SPDR SER TR BLOMBERG INTL TR ETF 78464A516 246,868 -66,147 -21.13 6,863 -23.90 0.0581
2020-02-11 2019-12-31 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 313,015 25,035 8.69 9,018 9.11 0.0685
2019-11-13 2019-09-30 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 287,980 -60,548 -17.37 8,265 -18.00 0.0692
2019-08-14 2019-06-30 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 348,528 2,260 0.65 10,079 4.37 0.0822
2019-05-14 2019-03-31 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 346,268 -97,312 -21.94 9,657 -21.15 0.0872
2019-02-13 2018-12-31 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 443,580 -28,554 -6.05 12,247 -5.26 0.1182
2018-11-13 2018-09-30 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 472,134 -69,714 -12.87 12,927 -14.03 0.1175
2018-08-01 2018-06-30 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 541,848 24,337 4.70 15,036 -1.55 0.1477
2018-05-16 2018-03-31 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 517,511 77,794 17.69 15,272 22.17 0.1581
2018-02-13 2017-12-31 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 439,717 31,786 7.79 12,501 9.09 0.1288
2017-11-08 2017-09-30 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 407,931 -195,037 -32.35 11,459 -34.79 0.1303
2017-08-14 2017-06-30 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 602,968 -83,486 -12.16 17,572 -3.91 0.2211
2017-09-15 2017-03-31 13F/A-1 SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 686,454 -713,444 -50.96 18,287 -49.72 0.2402
2017-05-08 2017-03-31 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 615,293 -716,957 16,391
2017-09-15 2016-12-31 13F/A-1 SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 1,399,898 -978,210 -41.13 36,369 -46.97 0.5343
2017-02-14 2016-12-31 13F SPDR SERIES TRUST BLOMBERG INTL TR ETF 78464A516 1,332,250 -987,186 34,612
2017-09-14 2016-09-30 13F/A-1 SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 2,378,108 1,907,535 405.36 68,585 155.03 1.0431
2016-11-04 2016-09-30 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 2,319,436 1,874,247 66,893
2017-09-14 2016-06-30 13F/A-1 SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 470,573 -666,998 -58.63 26,893 -57.59 0.4522
2016-08-08 2016-06-30 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 445,189 -665,851 25,442
2017-09-14 2016-03-31 13F/A-1 SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 1,137,571 253,017 28.60 63,408 38.84 1.1069
2016-05-13 2016-03-31 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 1,111,040 253,575 61,929
2017-09-14 2015-12-31 13F/A-1 SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 884,554 -49,661 -5.32 45,670 -6.12 0.8464
2016-02-12 2015-12-31 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 857,465 -76,750 44,271
2016-01-05 2015-09-30 13F/A-1 SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 934,215 412,485 79.06 48,645 79.24 1.0146
2015-11-10 2015-09-30 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 934,215 48,645
2015-08-13 2015-06-30 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 521,730 -973,774 -65.11 27,140 -65.84 0.5650
2015-05-12 2015-03-31 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 1,495,504 1,495,504 0.00 79,441 1.6922
2015-02-03 2014-12-31 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 0 -140,796 -100.00 0 -100.00
2014-11-10 2014-09-30 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 140,796 22,631 19.15 8,077 12.40 0.1866
2014-08-12 2014-06-30 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 118,165 28,808 32.24 7,186 35.43 0.1531
2014-05-06 2014-03-31 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 89,357 18,812 26.67 5,306 30.27 0.1294
2014-02-11 2013-12-31 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 70,545 662 0.95 4,073 -0.15 0.0964
2014-02-11 2013-09-30 13F/A-1 SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 69,883 69,883 4,079 0.1030
2013-11-14 2013-09-30 13F SPDR SERIES TRUST BRCLYS INTL ETF ETF 78464A516 69,883 4,079 0.1030
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.