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GROUP ONE TRADING LLC

Position in YSS — York Space Systems Inc.

CIK 932540 CHICAGO, IL

Position in YSS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$182,606
+$125,253 QoQ
Shares Held
7,417
+186.7% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#115
of 161 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in YSS Over Time

Shares Held

Position Value (USD)

Position in Aerospace & Defense

Industrials · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $62,169,360 across 35 Aerospace & Defense names. YSS ranks #19 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in YSS

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $182,606 7,417
2026-03-31 $57,353 2,587