ETF · holdings as filed 2026-05-31
What's inside SDSI?
American Century Short Duration Strategic Income ETF
- Holdings
- 388
- positions in the fund
- Top 10
- 32%
- of fund assets
- Expense ratio
- 0.32%
- net, per year
- Fund size
- $218M
- total net assets
Top 20 holdings
| Rank | Logo | Ticker / Name | Weight | |
|---|---|---|---|---|
| 1 | G  | GVMXXSTATE ST INST US GOV MM-PREM | 10.99% | |
| 2 | T  | T 4 05.31.28US TREASURY N/B | 9.53% | |
| 3 | T  | T 3.875 05.15.29US TREASURY N/B | 3.27% | |
| 4 | T  | T 3.75 12.31.28US TREASURY N/B | 3.06% | |
| 5 | T  | T 4.375 12.31.29US TREASURY N/B | 2.07% | |
| 6 | ? | —State Street Navigator Securities Lending Trust - State Street Navigator Securities Lending Government Money Market Portfolio | 0.65% | |
| 7 | N  | NY BUIGEN 7 12.15.2030BUILD NYC RESOURCE-C | 0.52% | |
| 8 | C  | CMS V4.75 06.01.50CMS ENERGY CORP | 0.50% | |
| 9 | P  | PMTLT 2025-CNF1 A8PMTLT 2025-CNF1 A8 | 0.49% | |
| 10 | N  | NTRS V3.375 05.08.32NORTHERN TRUST CORP | 0.49% | |
| 11 | G  | GBLATL 4.4 10.15.29 144AGLOBAL ATLANTIC FIN CO | 0.46% | |
| 12 | B  | BNP V8.5 PERP 144ABNP PARIBAS | 0.46% | |
| 13 | E  | EXE 5.375 03.15.30EXPAND ENERGY CORP | 0.46% | |
| 14 | U  | UAL 4.625 04.15.29 144AUNITED AIRLINES INC | 0.46% | |
| 15 | B  | BMCAUS 4.75 01.15.28 144ASTANDARD INDUSTRI INC/NY | 0.45% | |
| 16 | A  | ANZ V2.57 11.25.35 144AAUST & NZ BANKING GROUP | 0.45% | |
| 17 | E  | EPD V5.25 08.16.77 EENTERPRISE PRODUCTS OPER | 0.44% | |
| 18 | H  | HRI 7 06.15.30 144AHERC HOLDINGS INC | 0.44% | |
| 19 | H  | HSBC V6.5 PERPHSBC HOLDINGS PLC | 0.44% | |
| 20 | A  | AAL 7.25 02.15.28 144AAMERICAN AIRLINES INC | 0.44% |
Top holdings — Bonds & Fixed Income
Your 10 largest positions in this sector
1
T
T 4 05.31.28US TREASURY N/B
9.53%2
T
T 3.875 05.15.29US TREASURY N/B
3.27%3
T
T 3.75 12.31.28US TREASURY N/B
3.06%4
T
T 4.375 12.31.29US TREASURY N/B
2.07%5
N
NY BUIGEN 7 12.15.2030BUILD NYC RESOURCE-C
0.52%6
C
CMS V4.75 06.01.50CMS ENERGY CORP
0.50%7
N
NTRS V3.375 05.08.32NORTHERN TRUST CORP
0.49%8
G
GBLATL 4.4 10.15.29 144AGLOBAL ATLANTIC FIN CO
0.46%9
E
EXE 5.375 03.15.30EXPAND ENERGY CORP
0.46%10
U
UAL 4.625 04.15.29 144AUNITED AIRLINES INC
0.46%Top holdings — United States
Your 10 largest positions in this country
1
G
GVMXXSTATE ST INST US GOV MM-PREM
10.99%2
T
T 4 05.31.28US TREASURY N/B
9.53%3
T
T 3.875 05.15.29US TREASURY N/B
3.27%4
T
T 3.75 12.31.28US TREASURY N/B
3.06%5
T
T 4.375 12.31.29US TREASURY N/B
2.07%6
N
NY BUIGEN 7 12.15.2030BUILD NYC RESOURCE-C
0.52%7
C
CMS V4.75 06.01.50CMS ENERGY CORP
0.50%8
P
PMTLT 2025-CNF1 A8PMTLT 2025-CNF1 A8
0.49%9
N
NTRS V3.375 05.08.32NORTHERN TRUST CORP
0.49%10
G
GBLATL 4.4 10.15.29 144AGLOBAL ATLANTIC FIN CO
0.46%Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Data source: official SEC Form N-PORT filings (as of 2026-05-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.
Informational and educational only — not investment advice.