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GROUP ONE TRADING LLC

Position in SST — System1, Inc.

CIK 932540 CHICAGO, IL

Position in SST

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$76
-$597 QoQ
Shares Held
33
-85.2% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#19
of 21 holders
Holding Since
Sep 2022
11 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in SST Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $8,911,582 across 10 Specialty Business Services names. SST ranks #10 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SST

Export CSV
11 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $76 33
2026-03-31 $673 223
2025-12-31 $2,598 663
2025-09-30 $5,075 721
2025-06-30 $11,469 2,074
2025-03-31 $7,995 20,986
2023-12-31 $146,235 65,872
2023-06-30 $107,869 23,971
2023-03-31 $97,872 22,761
2022-12-31 $89,316 19,044
2022-09-30 $308,782 49,091