DOSSIER · 13F Holders · Q2 2026

SPDR SERIES TRUST

8 institutions still hold SPDR SERIES TRUST as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 78464A908·8 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$659M
visible holders
Holders
8
filers reporting
Concentration
34.36%
SIMPLEX TRADING, LLC #1
top holder share
AI Holders Summary · Q2 2026

8 institutions reported SPDR SERIES TRUST in Q2 2026. SIMPLEX TRADING, LLC leads at 34.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
SIMPLEX TRADING, LLC
CIK 0001488542
$226M1.8M0.13%Q2 2026
02
Optiver Holding B.V.
CIK 0001859606· Market maker
$158M2.1M0.04%Q2 2026
03
IMC-Chicago, LLC
CIK 0001452861· Market maker
$137M1.7M0.03%Q2 2026
04
GROUP ONE TRADING LLC
CIK 0000932540
$108M1.4M0.15%Q2 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$28M240K0.00%Q2 2026
06
ARP Global Capital Ltd
CIK 0002074760
$1M3K0.52%Q2 2026
07
SG Americas Securities, LLC
CIK 0001313360
$229K165K0.00%Q1 2026
08
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025