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Marketaxess Holdings Inc

MKTX
Exchange
Nasdaq
Industry
Security Brokers, Dealers & Flotation Companies
SEC CIK
0001278021

In the last 90 days, Marketaxess Holdings Inc insiders filed 0 open-market purchases and 4 sales; 397 institutions reported holding it in 13F filings for Q2 2026, worth $4.44B in total; no superinvestor holds it.

13F holders, Q1 2025

Institutional positions in Marketaxess Holdings Inc as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
511
−1 vs. Q4 2024
Shares held
37.2M
−317.9K (−0.8%) vs. Q4 2024
Total value
$8.05B
−$431.1M (−5.1%) vs. Q4 2024
New holders
80
200 more added
Sold out
81
179 more reduced

7 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MKTX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2025: 511 institutions
Q1 2021: 589 institutionsQ2 2021: 551 institutionsQ3 2021: 508 institutionsQ4 2021: 505 institutionsQ1 2022: 506 institutionsQ2 2022: 505 institutionsQ3 2022: 479 institutionsQ4 2022: 500 institutionsQ1 2023: 540 institutionsQ2 2023: 514 institutionsQ3 2023: 485 institutionsQ4 2023: 506 institutionsQ1 2024: 463 institutionsQ2 2024: 468 institutionsQ3 2024: 511 institutionsQ4 2024: 519 institutionsQ1 2025: 511 institutionsQ2 2025: 531 institutionsQ3 2025: 452 institutionsQ4 2025: 487 institutionsQ1 2026: 452 institutionsQ2 2026: 397 institutions
Value heldQ1 2025: $8.05B
Q1 2021: $17.7BQ2 2021: $16.8BQ3 2021: $15.3BQ4 2021: $15.0BQ1 2022: $12.4BQ2 2022: $9.28BQ3 2022: $8.19BQ4 2022: $10.3BQ1 2023: $14.5BQ2 2023: $9.88BQ3 2023: $7.98BQ4 2023: $10.9BQ1 2024: $8.14BQ2 2024: $7.48BQ3 2024: $9.42BQ4 2024: $8.51BQ1 2025: $8.05BQ2 2025: $8.24BQ3 2025: $6.21BQ4 2025: $6.62BQ1 2026: $6.31BQ2 2026: $4.44B
Institutions holding MKTX and their total value by quarter
QuarterHoldersValue
Q2 2026397$4.44B
Q1 2026452$6.31B
Q4 2025487$6.62B
Q3 2025452$6.21B
Q2 2025531$8.24B
Q1 2025511$8.05B
Q4 2024519$8.51B
Q3 2024511$9.42B
Q2 2024468$7.48B
Q1 2024463$8.14B
Q4 2023506$10.9B
Q3 2023485$7.98B
Q2 2023514$9.88B
Q1 2023540$14.5B
Q4 2022500$10.3B
Q3 2022479$8.19B
Q2 2022505$9.28B
Q1 2022506$12.4B
Q4 2021505$15.0B
Q3 2021508$15.3B
Q2 2021551$16.8B
Q1 2021589$17.7B

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q4 2024.

Institutions holding MKTX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Y-Intercept (Hong Kong) Ltd6,446$1.39M0.09%+4,104+175.2%Added
iA Global Asset Management Inc.6,569$1.42M0.02%+1,467+28.8%Added
Healthcare of Ontario Pension Plan Trust Fund6,650$1.44M0.00%+6,650New
Simplex Trading, LLC6,943$1.50M0.05%+6,246+896.1%Added
Intech Investment Management LLC7,078$1.53M0.02%−8,977−55.9%Reduced
Amalgamated Bank7,276$1.57M0.01%+16+0.2%Added
KLP Kapitalforvaltning AS7,300$1.58M0.01%−6,500−47.1%Reduced
Stifel Financial Corp7,359$1.59M0.00%+4,486+156.1%Added
Catalyst Funds Management Pty Ltd7,400$1.60M0.42%+6,300+572.7%Added
Keybank National Association7,408$1.60M0.01%−741−9.1%Reduced
Achmea Investment Management B.V.7,481$1.62M0.02%+7,481New
Stiles Financial Services Inc7,669$1.66M0.64%+945+14.1%Added
UniSuper Management Pty Ltd7,751$1.68M0.01%−310−3.8%Reduced
Ashford Capital Management Inc7,830$1.69M0.22%−34,935−81.7%Reduced
B. Metzler seel. Sohn & Co. AG7,890$1.71M0.02%+1,113+16.4%Added
Twin Tree Management, LP7,931$1.72M0.04%+7,931New
TownSquare Capital, LLC8,004$1.73M0.02%−189−2.3%Reduced
US Bancorp8,057$1.74M0.00%−3,058−27.5%Reduced
Retirement Systems of Alabama8,102$1.75M0.01%−61−0.7%Reduced
Magnetar Financial LLC8,207$1.78M0.02%−9,355−53.3%Reduced
SG Americas Securities, LLC8,210$1.78M0.01%+7,555+1,153.4%Added
Truist Financial Corp8,416$1.82M0.00%+176+2.1%Added
Universal- Beteiligungs- und Servicegesellschaft mbH8,449$1.83M0.00%−20,714−71.0%Reduced
Jump Financial, LLC8,616$1.86M0.03%−13,543−61.1%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys8,622$1.87M0.01%+605+7.5%Added
Corebridge Financial, Inc.8,659$1.87M0.01%−263−2.9%Reduced
Czech National Bank8,660$1.87M0.02%+485+5.9%Added
State of Tennessee, Treasury Department8,826$1.91M0.01%−259−2.9%Reduced
Cerity Partners LLC8,830$1.91M0.00%+882+11.1%Added
LPL Financial LLC8,874$1.92M0.00%+3,180+55.8%Added
CIBC World Markets Inc.8,932$1.93M0.00%−129−1.4%Reduced
New York Life Investment Management LLC8,952$1.94M0.02%−107−1.2%Reduced
Pictet Asset Management Holding SA8,975$1.94M0.00%−15,038−62.6%Reduced
Quantinno Capital Management LP8,978$1.94M0.01%+2,309+34.6%Added
Dark Forest Capital Management LP9,155$1.98M0.09%+9,155New
Pine Valley Investments Ltd Liability Co9,167$1.98M0.13%−488−5.1%Reduced
Caisse de Depot Et Placement du Quebec9,400$2.03M0.00%−156−1.6%Reduced
Credit Agricole S A9,405$2.03M0.01%−4,641−33.0%Reduced
XTX Topco Ltd9,531$2.06M0.11%+8,254+646.4%Added
MetLife Investment Management9,778$2.12M0.01%−187−1.9%Reduced
Public Sector Pension Investment Board10,094$2.18M0.01%+328+3.4%Added
State of Michigan Retirement System10,193$2.21M0.01%−628−5.8%Reduced
Fieldview Capital Management, LLC10,195$2.21M0.31%+9,245+973.2%Added
Zurcher Kantonalbank (Zurich Cantonalbank)10,233$2.21M0.01%−4,032−28.3%Reduced
Handelsbanken Fonder AB10,644$2.30M0.01%00.0%Unchanged
Hixon Zuercher, LLC10,680$2.31M0.81%+1,739+19.4%Added
Coldstream Capital Management Inc10,701$2.32M0.05%+645+6.4%Added
Voya Investment Management LLC10,771$2.33M0.00%−34−0.3%Reduced
Point72 Europe (London) LLP10,800$2.34M0.16%+10,800New
Arizona State Retirement System10,806$2.34M0.01%−158−1.4%Reduced
Great West Life Assurance Co11,021$2.39M0.00%−10,164−48.0%Reduced
AIA Group Ltd11,496$2.49M0.06%−7,800−40.4%Reduced
ProShare Advisors LLC11,510$2.49M0.01%+1,414+14.0%Added
LRT Capital Management, LLC11,646$2.52M1.73%+9,790+527.5%Added
Ieq Capital, LLC11,657$2.52M0.02%+1,690+17.0%Added
Sanctuary Advisors, LLC11,679$2.53M0.02%−17,374−59.8%Reduced
Toroso Investments, LLC11,961$2.59M0.02%+1,679+16.3%Added
Rafferty Asset Management, LLC12,362$2.67M0.01%−949−7.1%Reduced
Element Capital Management LLC12,697$2.75M0.68%+12,697New
Public Employees Retirement System of Ohio13,287$2.87M0.01%−1,650−11.0%Reduced
Ameriprise Financial Inc13,289$2.88M0.00%−148,201−91.8%Reduced
State of New Jersey Common Pension Fund D13,313$2.88M0.01%−485−3.5%Reduced
Police & Firemen's Retirement System of New Jersey13,410$2.90M0.03%+127+1.0%Added
Verition Fund Management LLC13,695$2.96M0.02%+1,120+8.9%Added
Agf Management Ltd14,133$3.06M0.02%+4,337+44.3%Added
Natixis14,099$3.06M0.02%−14,935−51.4%Reduced
Peak Financial Advisors LLC14,212$3.07M1.57%+14,212New
Cinctive Capital Management LP14,519$3.14M0.25%+4,770+48.9%Added
Edgestream Partners, L.P.14,655$3.17M0.11%+14,655New
Thrivent Financial for Lutherans15,157$3.28M0.01%00.0%Unchanged
Alberta Investment Management Corp16,300$3.53M0.02%00.0%Unchanged
Treasurer of the State of North Carolina16,905$3.66M0.01%+660+4.1%Added
Capital Fund Management S.A.16,995$3.68M0.05%+16,995New
Alamar Capital Management, LLC17,014$3.68M2.19%−424−2.4%Reduced
Bank of Nova Scotia17,062$3.69M0.01%+10,599+164.0%Added
Nordea Investment Management AB16,950$3.70M0.00%−40,926−70.7%Reduced
Russell Investments Group, Ltd.17,188$3.72M0.01%−7,668−30.8%Reduced
Victory Capital Management Inc17,400$3.76M0.00%+11,801+210.8%Added
Susquehanna International Group, LLP17,662$3.82M0.01%−9,903−35.9%Reduced
Ensign Peak Advisors, Inc17,942$3.88M0.01%+2,945+19.6%Added
D.A. Davidson & Co.17,983$3.89M0.03%+1,256+7.5%Added
Natixis Advisors, L.P.18,179$3.93M0.01%+18,179New
Geneva Capital Management LLC18,687$4.04M0.08%+3,191+20.6%Added
APG Asset Management N.V.20,600$4.13M0.01%+300+1.5%Added
Oppenheimer Asset Management Inc.19,207$4.16M0.05%+3,764+24.4%Added
Voloridge Investment Management, LLC19,484$4.22M0.02%+19,484New
Chevy Chase Trust Holdings, Inc.19,775$4.28M0.01%−10−0.1%Reduced
Prudential Financial Inc19,935$4.31M0.01%−9,504−32.3%Reduced
Toronto Dominion Bank19,957$4.32M0.01%−5,764−22.4%Reduced
Engineers Gate Manager LP20,751$4.49M0.08%+11,148+116.1%Added
Interval Partners, LP21,276$4.60M0.16%−107−0.5%Reduced
New York State Common Retirement Fund21,319$4.61M0.01%−54,660−71.9%Reduced
Trexquant Investment LP22,103$4.78M0.06%+16,193+274.0%Added
Flossbach Von Storch AG23,000$4.98M0.02%+6,710+41.2%Added
Envestnet Portfolio Solutions, Inc.23,426$5.07M0.02%+1,980+9.2%Added
Adage Capital Partners GP, L.L.C.24,450$5.29M0.01%+11,200+84.5%Added
Qube Research & Technologies Ltd24,500$5.30M0.01%−30,141−55.2%Reduced
First Citizens Bank & Trust Co24,671$5.34M0.14%+2,947+13.6%Added
Aquatic Capital Management LLC25,964$5.62M0.14%+1,139+4.6%Added
Guardian Capital LP26,300$5.69M0.22%−74−0.3%Reduced