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GROUP ONE TRADING LLC

Position in MARA — MARA Holdings, Inc.

CIK 932540 CHICAGO, IL

Position in MARA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$1,476,423
+$318,634 QoQ
Shares Held
106,294
-25.1% QoQ
Ownership
0.028%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#122
of 411 holders
Holding Since
Mar 2021
15 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MARA Over Time

Shares Held

Position Value (USD)

Position in Capital Markets

Financial Services · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $64,416,149 across 36 Capital Markets names. MARA ranks #8 (2.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 MARA
MARA Holdings, Inc.
This page
106,294 $1,476,423

All Filings in MARA

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15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,476,423 106,294
2026-03-31 $1,157,789 141,886
2025-09-30 $3,078,270 168,580
2025-06-30 $11,411,135 727,751
2024-09-30 $21,634,479 1,333,815
2024-06-30 $22,814,954 1,149,368
2024-03-31 $33,769,360 1,495,543
2023-12-31 $19,408,776 826,257
2023-09-30 $2,419,542 284,652
2023-06-30 $4,122,878 297,466
2023-03-31 $2,361,323 270,794
2021-12-31 $21,578,143 656,669
2021-09-30 $18,227,565 577,187
2021-06-30 $9,392,240 299,402
2021-03-31 $23,679,334 493,114