13F Insight
DOSSIER · 13F Holders · Q1 2026
QID

PROSHARES TR

48 institutions still hold PROSHARES TR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74349Y829·48 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$70M
visible holders
Holders
48
filers reporting
Concentration
17.15%
Trek Financial, LLC #1
top holder share
AI Holders Summary · Q1 2026

48 institutions reported QID in Q1 2026. Trek Financial, LLC leads at 17.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Trek Financial, LLC
CIK 0001768195
$12M528K0.64%Q1 202602
CITADEL ADVISORS LLC
CIK 0001423053
$11M546K0.00%Q4 202503
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$11M467K0.00%Q1 202604
RHL GROUP, LLC
CIK 0002066311
$8M342K6.62%Q1 202605
Genesis Financial Group, LLC
CIK 0002097587
$5M224K3.20%Q1 202606
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$3M152K0.00%Q1 202607
HRT FINANCIAL LP
CIK 0001475597
$3M169K0.01%Q4 202508
Thomas J. Herzfeld Advisors, Inc.
CIK 0001509510
$3M116K0.90%Q1 202609
IMC-Chicago, LLC
CIK 0001452861· Market maker
$2M102K0.00%Q1 202610
UBS Group AG
CIK 0001610520
$2M77K0.00%Q1 202611
Quadrature Capital Ltd
CIK 0001651424
$1M71K0.01%Q4 202512
Tower Research Capital LLC (TRC)
CIK 0001533421
$1M55K0.03%Q1 202613
SOUTHPORT MANAGEMENT, L.L.C.
CIK 0001549553
$1M59K4.16%Q4 202514
Cambridge Investment Research Advisors, Inc.
CIK 0001419186
$1M49K0.00%Q1 202615
AXXCESS WEALTH MANAGEMENT, LLC
CIK 0001911056
$1M46K0.03%Q1 202616
FLOW TRADERS U.S. LLC
CIK 0001466697· Market maker
$885K39K0.03%Q1 202617
Walser Wealth Management Company, A Ltd Liability Co
CIK 0002112280
$846K62K0.35%Q2 202618
Hillsdale Investment Management Inc.
CIK 0001368465
$800K35K0.02%Q1 202619
GROUP ONE TRADING LLC
CIK 0000932540
$646K28K0.00%Q1 202620
SIMPLEX TRADING, LLC
CIK 0001488542
$609K27K0.00%Q1 2026
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