CenterBook Partners LP

Position in MKTX — Marketaxess Holdings Inc

CIK 1872738 GREENWICH, CT

Position in MKTX

as of Jun 30, 2026 · filed Aug 11, 2026 Compact

Position Value

$1,962,923

-$793,232 QoQ

Shares Held

17,296

+3.5% QoQ

Ownership

0.049%

of shares outstanding

% of Portfolio

0.10%

of 13F equity value

Holder Rank

#129

of 390 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Financial Services · as of Jun 30, 2026

CenterBook Partners LP holds $6,434,666 across 6 Capital Markets names. MKTX ranks #1 (30.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MKTX	Marketaxess Holdings Inc This page	17,296	$1,962,923
2	WULF	Terawulf Inc.	79,021	$1,951,818
3	MS	Morgan Stanley	8,123	$1,698,031
4	ETOR	eToro Group Ltd.	7,088	$279,763
5	MRX	Marex Group Ltd	4,456	$271,593
6	IREN	IREN Ltd	5,916	$270,538

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,962,923	17,296	+3.5%	Shares	Sole	2026-08-11
2026-03-31	$2,756,155	16,706	—	Shares	Sole	2026-05-05
No filing history on record for this holder in this stock.