DOSSIER · 13F Holders · Q3 2026

PROSHARES TR

5 institutions still hold PROSHARES TR as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74347G900·5 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$27M
visible holders
Holders
5
filers reporting
Concentration
58.24%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q3 2026

5 institutions reported PROSHARES TR in Q3 2026. GROUP ONE TRADING LLC leads at 58.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
GROUP ONE TRADING LLC
CIK 0000932540
$16M1.4M0.02%Q3 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$11M951K0.00%Q3 2026
03
HRT FINANCIAL LP
CIK 0001475597
$502K45K0.00%Q3 2026
04
Marathon Trading Investment Management LLC
CIK 0001572748
$1K1000.00%Q3 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025