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XOP · State Street SPDR Bloomberg 1-3 Month T-Bill ETF

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$185.94 +0.47 (+0.25%) At close · Aug 28

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.

Holders: 668
Total Value: $19,063,623,607
Total Shares: 208,034,617
Showing 1–100 of 673 holdings by value · page 1 of 7

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 668 13F filers · Δ vs Mar 31, 2026
Top Holder
14.0%
Sep 2023 → Jun 2026 · range 7.7% – 14.0%
+4.5 pts
Top 5
37.8%
Sep 2023 → Jun 2026 · range 26.5% – 37.8%
+10.4 pts
Top 10
51.5%
Sep 2023 → Jun 2026 · range 39.0% – 51.5%
+12.5 pts
HHI
423
Sep 2023 → Jun 2026 · range 224 – 423
Broadly held+189

Quarterly Activity

vs Mar 31, 2026
New
60
Increased
242
Decreased
321
Sold Out
702
Unchanged
45
Holder count: -642
Institutional value: -34.7%
Shares held: -34.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 673
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1081019 CUSIP 78468R663 13F (30d) 704 filings 675 filers Visit website