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GROUP ONE TRADING LLC

Position in MA — Mastercard Inc

CIK 932540 CHICAGO, IL

Position in MA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$437,587
-$3,486,071 QoQ
Shares Held
852
-87.6% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#2,671
of 3,555 holders
Holding Since
Dec 2020
15 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MA Over Time

Shares Held

Position Value (USD)

Position in Credit Services

Financial Services · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $16,522,470 across 20 Credit Services names. MA ranks #7 (2.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 MA
Mastercard Inc
This page
852 $437,587

All Filings in MA

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15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $437,587 852
2025-12-31 $3,923,658 6,873
2025-09-30 $5,194,372 9,132
2025-06-30 $2,495,013 4,440
2025-03-31 $11,329,092 20,669
2024-12-31 $10,520,342 19,979
2024-09-30 $10,698,670 21,666
2024-06-30 $6,216,385 14,091
2024-03-31 $4,033,148 8,375
2022-09-30 $9,254,982 32,549
2022-06-30 $9,530,019 30,208
2021-12-31 $6,969,011 19,395
2021-06-30 $36,783,547 100,752
2021-03-31 $71,179,735 199,915
2020-12-31 $60,097,987 168,370