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SDSI · American Century Short Duration Strategic Income ETF ETF

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$51.01 -0.16 (-0.31%) At close · Sep 4

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →
Holders: 1
Total Value: $859,547
Total Shares: 16,739

Institutional Ownership Trend

15 quarters

Holder Concentration

Across 1 13F filers · Δ vs Mar 31, 2026
Top Holder
100.0%
Sep 2023 → Jun 2026 · range 46.2% – 100.0%
+46.7 pts
Top 5
100.0%
Sep 2023 → Jun 2026 · range 79.8% – 100.0%
+20.2 pts
Top 10
100.0%
Sep 2023 → Jun 2026 · range 89.6% – 100.0%
+10.4 pts
HHI
10,000
Sep 2023 → Jun 2026 · range 2,877 – 10,000
Highly concentrated+6,917

Quarterly Activity

vs Mar 31, 2026
New
0
Increased
1
Decreased
0
Sold Out
35
Unchanged
0
Holder count: -35
Institutional value: -99.4%
Shares held: -99.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open
CITADEL ADVISORS LLC +10,304 16,739

Top Sellers

vs Mar 31, 2026
No qualifying movers this quarter.

Top New Positions

vs Mar 31, 2026
No new positions this quarter.

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
AMERICAN CENTURY COMPANIES INC 1,476,794 $75,743,287
Round Rock Advisors LLC 287,522 $14,746,715
RAYMOND JAMES FINANCIAL INC 240,054 $12,312,128
HighTower Advisors, LLC 109,939 $5,638,661
ENVESTNET ASSET MANAGEMENT INC 96,792 $4,964,364
Filter: New 0 Increased 1 Reduced 0 Sold out 35 Unchanged 0
Showing 1 of 1
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Holder Value (USD) % of 13F Shares Open
CITADEL ADVISORS LLC SDSI $859,547 100.00% 16,739