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GROUP ONE TRADING LLC

Position in OSG — Octave Specialty Group Inc

CIK 932540 CHICAGO, IL

Position in OSG

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$140,874
+$85,316 QoQ
Shares Held
22,576
+89.0% QoQ
Ownership
0.050%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#76
of 147 holders
Holding Since
Jun 2023
10 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in OSG Over Time

Shares Held

Position Value (USD)

Position in Insurance - Specialty

Financial Services · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $995,733 across 4 Insurance - Specialty names. OSG ranks #2 (14.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 OSG
Octave Specialty Group Inc
This page
22,576 $140,874

All Filings in OSG

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10 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $140,874 22,576
2026-03-31 $55,558 11,948
2025-09-30 $170,544 20,449
2025-06-30 $2,284,240 321,724
2025-03-31 $2,987,845 341,468
2024-12-31 $203,867 16,116
2024-09-30 $109,454 9,764
2024-03-31 $1,204,901 77,089
2023-12-31 $1,424,366 86,430
2023-06-30 $127,533 8,956