American Century ETF Trust - American Century Short Duration Strategic Income ETF
US ˙ NasdaqGM ˙ US0250722578

SecuritySDSI / American Century ETF Trust - American Century Short Duration Strategic Income ETF
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership29,657 shares
Latest Disclosed Value $ 1,521,059
Advisor Group Holdings, Inc. reports 14.49% decrease in ownership of SDSI / American Century ETF Trust - American Century Short Duration Strategic Income ETF

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 29,657 shares of American Century ETF Trust - American Century Short Duration Strategic Income ETF (US:SDSI) valued at $1,521,078 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,681 shares of American Century ETF Trust - American Century Short Duration Strategic Income ETF. This represents a change in shares of -14.49% during the quarter. The current value of the position is $1,524,073 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 AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 29,657 -5,024 -14.49 1,521 -14.93 0.0013
2026-02-17 2025-12-31 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 34,681 -3,604 -9.41 1,789 -9.56 0.0026
2025-11-14 2025-09-30 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 38,285 -1,768 -4.41 1,978 -4.12 0.0028
2025-09-04 2025-06-30 13F/A-1 AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 40,053 15,606 63.84 2,063 64.43 0.0037
2025-08-13 2025-06-30 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 25,676 1,229 1,309 0.0015
2025-05-12 2025-03-31 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 24,447 3,020 14.09 1,255 15.15 0.0028
2025-06-06 2024-12-31 13F/A-1 AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 21,427 687 3.31 1,090 1.21 0.0024
2025-02-07 2024-12-31 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 20,740 0 1,076 0.0027
2024-11-13 2024-09-30 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 20,740 19,497 1,568.54 1,076 1,607.94 0.0024
2024-08-13 2024-06-30 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 1,243 -15,633 -92.63 63 -92.67 0.0001
2024-05-10 2024-03-31 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 16,876 1,891 12.62 860 12.73 0.0019
2024-02-12 2023-12-31 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 14,985 558 3.87 762 4.96 0.0013
2023-11-13 2023-09-30 13F AMERICAN CENTY ETF TR SHORT DURTN STRG 025072257 14,427 14,427 727 0.0011
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.