13F Insight
DOSSIER · 13F Holders · Q1 2026Cheap mega-capRe-rated

SPDR SERIES TRUST

8 institutions still hold SPDR SERIES TRUST as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 78464A950·8 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 1.5%
vs prior quarter
13F value held
$332M
47.0% inst. owned
of float
Holders
8
+68 QoQ
filers reporting
Activity
+49 / −52
+801 added · −784 reduced
this quarter
Concentration
36.01%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q1 2026

8 institutions reported SPDR SERIES TRUST in Q1 2026. IMC-Chicago, LLC leads at 36.0% of the visible book. +68 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$120M937K0.04%Q1 202602
SILVERARC CAPITAL MANAGEMENT, LLC
CIK 0001816307
$105M825K10.75%Q1 202603
GROUP ONE TRADING LLC
CIK 0000932540
$65M506K0.12%Q1 202604
HRT FINANCIAL LP
CIK 0001475597
$24M196K0.08%Q4 202505
RH Tailwind Management, LLC
CIK 0002065331
$10M80K1.31%Q1 202606
JPMORGAN CHASE & CO
CIK 0000019617
$8M70K0.00%Q1 202607
SG Americas Securities, LLC
CIK 0001313360
$722290K0.00%Q1 202608
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025