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GROUP ONE TRADING LLC

Position in ERO — Ero Copper Corp.

CIK 932540 CHICAGO, IL

Position in ERO

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$334,068
-$545,754 QoQ
Shares Held
12,526
-71.2% QoQ
Ownership
0.012%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2023
7 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ERO Over Time

Shares Held

Position Value (USD)

Position in Copper

Basic Materials · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $9,173,386 across 6 Copper names. ERO ranks #5 (3.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 ERO
Ero Copper Corp.
This page
12,526 $334,068

All Filings in ERO

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7 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $334,068 12,526
2025-09-30 $879,822 43,491
2025-06-30 $457,763 27,167
2025-03-31 $230,982 19,058
2024-12-31 $105,103 7,797
2024-09-30 $516,842 23,208
2023-12-31 $130,346 8,255