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XLB · State Street Materials Select Sector SPDR ETF

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$52.54 +0.23 (+0.44%) At close · Aug 14

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: 300
Total Value: $6,194,414,703
Total Shares: 121,865,333

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 300 13F filers · Δ vs Mar 31, 2026
Top Holder
10.2%
Sep 2023 → Jun 2026 · range 8.3% – 17.2%
+1.3 pts
Top 5
35.5%
Sep 2023 → Jun 2026 · range 30.7% – 49.0%
+4.8 pts
Top 10
53.7%
Sep 2023 → Jun 2026 · range 46.1% – 62.7%
+7.6 pts
HHI
391
Sep 2023 → Jun 2026 · range 289 – 615
Broadly held+102

Quarterly Activity

vs Mar 31, 2026
New
46
Increased
128
Decreased
83
Sold Out
650
Unchanged
43
Holder count: -604
Institutional value: -27.2%
Shares held: -28.4%

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 335
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 19481 CUSIP 81369Y100 13F (30d) 301 filings 301 filers Visit website