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

XLU 230915P00065000

14 institutions still hold XLU 230915P00065000 as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 81369y956·14 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 3.3%
vs prior quarter
13F value held
$2.4B
72.0% inst. owned
of float
Holders
14
+19 QoQ
filers reporting
Activity
+73 / −44
+852 added · −831 reduced
this quarter
Concentration
42.62%
SIMPLEX TRADING, LLC #1
top holder share
AI Holders Summary · Q1 2026

14 institutions reported XLU 230915P00065000 in Q1 2026. SIMPLEX TRADING, LLC leads at 42.6% of the visible book. +19 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
SIMPLEX TRADING, LLC
CIK 0001488542
$1.0B15.4M0.69%Q1 202602
Optiver Holding B.V.
CIK 0001859606· Market maker
$776M12.7M0.27%Q1 202603
IMC-Chicago, LLC
CIK 0001452861· Market maker
$325M5.7M0.12%Q1 202604
JPMORGAN CHASE & CO
CIK 0000019617
$93M1.5M0.01%Q1 202605
Maven Securities LTD
CIK 0001633046
$84M1.5M1.62%Q1 202606
GROUP ONE TRADING LLC
CIK 0000932540
$43M744K0.08%Q1 202607
RH Tailwind Management, LLC
CIK 0002065331
$27M440K3.45%Q1 202608
Truffle Hound Capital, LLC
CIK 0001595862
$25M400K6.35%Q1 202609
CIBC Bancorp USA Inc.
CIK 0001711924
$6M100K0.01%Q1 202610
LuminArx Capital Management LP
CIK 0001992915
$162,175165K0.12%Q1 202611
Marathon Trading Investment Management LLC
CIK 0001572748
$122,5202K0.00%Q1 202612
Alpine Global Management, LLC
CIK 0001581655
$11,6008000.00%Q1 202613
Western Wealth Management, LLC
CIK 0001767902
$4840.00%Q1 202614
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025