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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, Q3 2023

Institutional positions in Marketaxess Holdings Inc as of Sep 30, 2023. 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
485
−25 vs. Q2 2023
Shares held
37.3M
−302.5K (−0.8%) vs. Q2 2023
Total value
$7.98B
−$1.86B (−18.9%) vs. Q2 2023
New holders
47
180 more added
Sold out
72
188 more reduced

4 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 holdersQ3 2023: 485 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 heldQ3 2023: $7.98B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q2 2023.

Institutions holding MKTX in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc4,492,225$959.7M0.02%+2,947+0.1%Added
BlackRock Inc.3,594,505$767.9M0.02%−314,564−8.0%Reduced
Guardcap Asset Management Ltd1,895,199$404.9M5.62%−91,592−4.6%Reduced
Royal Bank of Canada1,705,958$364.5M0.11%+33,288+2.0%Added
State Street Corp1,657,225$354.0M0.02%−18,874−1.1%Reduced
Van Eck Associates Corp1,265,784$270.4M0.59%+752,111+146.4%Added
T. Rowe Price Investment Management, Inc.1,256,773$268.5M0.19%−141,283−10.1%Reduced
Primecap Management Co1,118,220$238.9M0.20%+10,450+0.9%Added
Macquarie Group Ltd1,017,228$217.3M0.27%+15,259+1.5%Added
Geode Capital Management, LLC866,820$184.8M0.02%+15,563+1.8%Added
Ownership Capital B.V.796,956$170.3M4.26%−221,164−21.7%Reduced
Kayne Anderson Rudnick Investment Management LLC683,497$146.0M0.42%−33,748−4.7%Reduced
Baillie Gifford & Co615,353$131.5M0.12%−777,449−55.8%Reduced
FMR LLC545,563$116.6M0.01%+433,217+385.6%Added
Artisan Partners Limited Partnership540,927$115.6M0.20%+23,070+4.5%Added
Invesco Ltd.539,080$115.2M0.03%+113,642+26.7%Added
Millennium Management LLC504,246$107.7M0.11%+222,341+78.9%Added
Norges Bank426,502$91.1M0.02%+3,809+0.9%Added
Eagle Asset Management Inc422,998$90.4M0.53%+41,188+10.8%Added
Bank of New York Mellon Corp418,104$89.3M0.02%+69,165+19.8%Added
Northern Trust Corp386,993$82.7M0.02%+20,143+5.5%Added
Allianz Asset Management GmbH357,596$76.4M0.16%+7,013+2.0%Added
Wasatch Advisors Inc349,485$74.7M0.47%+293,654+526.0%Added
Charles Schwab Investment Management Inc341,734$73.0M0.02%+6,662+2.0%Added
Jackson Square Partners, LLC330,226$70.5M2.36%+158,395+92.2%Added
JPMorgan Chase & Co301,947$64.5M0.01%+103,810+52.4%Added
Neuberger Berman Group LLC284,813$60.8M0.06%−1,898−0.7%Reduced
Morgan Stanley278,641$59.5M0.01%−5,996−2.1%Reduced
Allspring Global Investments Holdings, LLC275,457$58.8M0.10%−313,034−53.2%Reduced
APG Asset Management N.V.254,320$54.3M0.11%−15,040−5.6%Reduced
Price T Rowe Associates Inc250,298$53.5M0.01%−129,037−34.0%Reduced
Qube Research & Technologies Ltd239,601$51.2M0.15%+57,772+31.8%Added
Two Sigma Investments, LP236,283$50.5M0.14%+192,823+443.7%Added
UBS Asset Management Americas Inc235,298$50.3M0.02%+20,704+9.6%Added
Legal & General Group Plc234,712$50.1M0.02%−15,134−6.1%Reduced
Teacher Retirement System of Texas210,134$44.9M0.30%+128,193+156.4%Added
Tandem Investment Advisors, Inc.207,794$44.4M1.87%+6,513+3.2%Added
Stephens Investment Management Group LLC200,101$42.7M0.70%+1,743+0.9%Added
Dimensional Fund Advisors LP196,759$42.0M0.01%+3,709+1.9%Added
Baird Financial Group, Inc.185,648$39.7M0.11%+30,008+19.3%Added
Burgundy Asset Management Ltd.170,285$36.4M0.45%+83,864+97.0%Added
NFJ Investment Group, LLC170,183$36.4M1.06%+71,207+71.9%Added
Van Berkom & Associates Inc.166,860$35.6M1.16%+26,273+18.7%Added
Raymond James & Associates156,019$33.3M0.03%+1,426+0.9%Added
SEI Investments Co150,919$32.2M0.06%+18,639+14.1%Added
Wells Fargo & Company150,199$32.1M0.01%+13,809+10.1%Added
Amundi134,082$32.0M0.02%+23,182+20.9%Added
Bank of America Corp148,333$31.7M0.00%+21,790+17.2%Added
GW&K Investment Management, LLC137,653$29.4M0.30%−4,784−3.4%Reduced
Deutsche Bank AG128,746$27.5M0.02%+709+0.6%Added
Nuveen Asset Management, LLC126,762$27.1M0.01%−1,461−1.1%Reduced
Fiera Capital Corp123,287$26.3M0.08%+31,226+33.9%Added
Bridgewater Associates, LP122,304$26.1M0.16%−59,353−32.7%Reduced
Renaissance Technologies LLC121,110$25.9M0.04%+60,300+99.2%Added
Caisse de Depot Et Placement du Quebec120,028$25.6M0.07%−18,251−13.2%Reduced
Source Financial Advisors LLC115,021$24.6M8.29%−110.0%Reduced
D. E. Shaw & Co., Inc.106,389$22.7M0.04%−5,144−4.6%Reduced
Los Angeles Capital Management LLC104,510$22.3M0.09%−9,815−8.6%Reduced
Citadel Advisors LLC104,001$22.2M0.02%−42,660−29.1%Reduced
HSBC Holdings PLC101,817$21.8M0.02%+29,552+40.9%Added
TD Asset Management Inc101,117$21.6M0.03%−9,447−8.5%Reduced
Marshall Wace, LLP97,339$20.8M0.04%+97,339New
Bank of Montreal90,727$20.6M0.01%+689+0.8%Added
FIL Ltd94,749$20.2M0.02%+38,590+68.7%Added
Barclays PLC93,586$20.0M0.01%+3,540+3.9%Added
RMB Capital Management, LLC92,519$19.8M0.68%−1,354−1.4%Reduced
Sumitomo Mitsui Trust Holdings, Inc.92,344$19.7M0.02%−9,017−8.9%Reduced
Citigroup Inc92,057$19.7M0.03%+11,173+13.8%Added
Rhumbline Advisers91,847$19.6M0.02%+3,024+3.4%Added
Cubist Systematic Strategies, LLC90,706$19.4M0.24%+30,199+49.9%Added
Ashford Capital Management Inc88,822$19.0M2.79%−200.0%Reduced
Bamco Inc88,817$19.0M0.06%−89,232−50.1%Reduced
Goldman Sachs Group Inc88,556$18.9M0.00%−123,664−58.3%Reduced
Two Sigma Advisers, LP83,700$17.9M0.05%+76,300+1,031.1%Added
Alliancebernstein L.P.82,877$17.7M0.01%−146,820−63.9%Reduced
Jupiter Asset Management Ltd80,748$17.3M0.19%−37,657−31.8%Reduced
UBS Group AG80,413$17.2M0.01%−6,269−7.2%Reduced
Mitsubishi UFJ Trust & Banking Corp76,960$16.4M0.04%−1,187−1.5%Reduced
New York State Common Retirement Fund75,435$16.1M0.02%+8,259+12.3%Added
Twinbeech Capital LP75,119$16.0M0.31%−14,875−16.5%Reduced
California Public Employees Retirement System70,378$15.0M0.01%+92+0.1%Added
Federated Hermes, Inc.68,818$14.7M0.04%+4,567+7.1%Added
Voloridge Investment Management, LLC64,801$13.8M0.07%−73,187−53.0%Reduced
Credit Suisse AG63,170$13.5M0.01%−1,652−2.5%Reduced
California State Teachers Retirement System59,418$12.7M0.02%−1,620−2.7%Reduced
Bahl & Gaynor Inc54,646$11.7M0.07%−3,331−5.7%Reduced
Nomura Asset Management Co Ltd54,621$11.7M0.05%+5,155+10.4%Added
Alyeska Investment Group, L.P.54,570$11.7M0.08%+54,570New
Public Employees Retirement Association of Colorado54,276$11.6M0.06%+62+0.1%Added
Squarepoint Ops LLC52,596$11.2M0.05%−15,430−22.7%Reduced
Worldquant Millennium Advisors LLC51,837$11.1M0.17%+51,837New
Principal Financial Group Inc51,460$11.0M0.01%+597+1.2%Added
Walleye Capital LLC49,509$10.6M0.16%+38,933+368.1%Added
2Xideas AG48,260$10.3M1.14%+18,420+61.7%Added
Tudor Investment Corp Et Al46,925$10.0M0.15%+38,168+435.9%Added
Envestnet Asset Management Inc45,134$9.64M0.00%−18,461−29.0%Reduced
Tobam44,853$9.58M0.77%+19,577+77.5%Added
Prana Capital Management, LP44,630$9.53M0.62%+33,263+292.6%Added
State Board of Administration of Florida Retirement System44,408$9.49M0.02%−4,810−9.8%Reduced
State of Wisconsin Investment Board41,485$8.86M0.03%+2,149+5.5%Added