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Holocene Advisors, LP

Position in MKTX — Marketaxess Holdings Inc

CIK 1700574 New York, NY

Position in MKTX

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$7,225,959
-$31,716,509 QoQ
Shares Held
43,799
-79.6% QoQ
Ownership
0.123%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2021
16 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in MKTX Over Time

Shares Held

Position Value (USD)

Position in Capital Markets

Financial Services · as of Mar 31, 2026

Holocene Advisors, LP holds $350,849,356 across 12 Capital Markets names. MKTX ranks #7 (2.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 MKTX
Marketaxess Holdings Inc
This page
43,799 $7,225,959

All Filings in MKTX

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16 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $7,225,959 43,799
2025-12-31 $38,942,468 214,855
2025-09-30 $48,867,541 280,445
2025-06-30 $17,102,037 76,574
2025-03-31 $54,226,396 250,642
2024-09-30 $1,371,182 5,352
2024-06-30 $27,985,966 139,560
2023-12-31 $5,780,859 19,740
2023-09-30 $6,263,924 29,320
2022-12-31 $1,493,734 5,356
2022-09-30 $3,010,067 13,529
2022-06-30 $5,201,867 20,319
2021-12-31 $6,117,229 14,874
2021-09-30 $7,399,516 17,589
2021-06-30 $7,571,815 16,333
2021-03-31 $5,576,704 11,200