DOSSIER · 13F Holders · Q1 2026

PROSHARES TR

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

CUSIP 74350P909·3 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$22M
visible holders
Holders
3
filers reporting
Concentration
46.05%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q1 2026

3 institutions reported PROSHARES TR in Q1 2026. GROUP ONE TRADING LLC leads at 46.1% 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
$10M180K0.02%Q1 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$10M170K0.00%Q1 2026
03
HRT FINANCIAL LP
CIK 0001475597
$2M47K0.01%Q4 2025