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Walleye Trading LLC

Position in MKTX — Marketaxess Holdings Inc

CIK 1388391 NEW YORK, NY

Position in MKTX

as of Mar 31, 2026 · filed May 11, 2026
Position Value
$3,146,168
+$3,146,168 QoQ
Shares Held
19,070
Ownership
0.054%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2021
13 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)

Derivatives in MKTX

reported options exposure · as of Mar 31, 2026
CallValue
$49,494
CallShares
300
PutValue
$164,980
PutShares
1,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Capital Markets

Financial Services · as of Mar 31, 2026

Walleye Trading LLC holds $90,874,963 across 20 Capital Markets names. MKTX ranks #8 (3.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 MKTX
Marketaxess Holdings Inc
This page
19,070 $3,146,168

All Filings in MKTX

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27 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $3,146,168 19,070
2026-03-31 $164,980 1,000
2026-03-31 $49,494 300
2025-12-31 $670,625 3,700
2025-12-31 $18,125 100
2025-09-30 $540,175 3,100
2025-09-30 $17,425 100
2025-09-30 $386,835 2,220
2025-06-30 $942,494 4,220
2025-06-30 $5,762,172 25,800
2025-03-31 $3,223,615 14,900
2025-03-31 $2,466,390 11,400
2025-03-31 $744,244 3,440
2024-09-30 $25,620 100
2024-09-30 $179,852 702
2024-06-30 $1,002,650 5,000
2024-06-30 $687,617 3,429
2024-03-31 $197,325 900
2024-03-31 $460,425 2,100
2023-12-31 $175,710 600
2023-12-31 $614,985 2,100
2023-09-30 $330,928 1,549
2023-09-30 $149,548 700
2023-09-30 $128,184 600
2023-06-30 $351,871 1,346
2022-12-31 $408,016 1,463
2021-12-31 $310,097 754