42 institutions reported holding $10.55B of SELECT SECTOR SPDR TR (XLYI) in SEC 13F filings for 2026-06-30. Largest institutional holders: Optiver Holding B.V. ($2.42B), JPMORGAN CHASE & CO ($2.10B), IMC-Chicago, LLC ($2.05B), SIMPLEX TRADING, LLC ($1.85B), GROUP ONE TRADING LLC ($494.3M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30