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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, Q4 2023

Institutional positions in Marketaxess Holdings Inc as of Dec 31, 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
506
+26 vs. Q3 2023
Shares held
37.2M
−133.6K (−0.4%) vs. Q3 2023
Total value
$10.9B
+$2.89B (+36.2%) vs. Q3 2023
New holders
94
179 more added
Sold out
68
171 more reduced

5 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2023: 506 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 heldQ4 2023: $10.9B
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, Q4 2023

Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q3 2023.

Institutions holding MKTX in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc4,526,422$1.33B0.03%+34,197+0.8%Added
BlackRock Inc.3,178,566$930.8M0.02%−415,939−11.6%Reduced
Guardcap Asset Management Ltd1,861,077$545.0M7.02%−34,122−1.8%Reduced
Royal Bank of Canada1,770,203$518.4M0.13%+64,245+3.8%Added
State Street Corp1,699,125$497.6M0.02%+41,900+2.5%Added
Van Eck Associates Corp1,367,613$400.5M0.73%+101,829+8.0%Added
T. Rowe Price Investment Management, Inc.1,228,330$359.7M0.23%−28,443−2.3%Reduced
Primecap Management Co1,122,560$328.7M0.26%+4,340+0.4%Added
Macquarie Group Ltd1,017,758$298.1M0.34%+530+0.1%Added
Geode Capital Management, LLC892,419$260.7M0.03%+25,599+3.0%Added
Price T Rowe Associates Inc868,831$254.4M0.03%+618,533+247.1%Added
FMR LLC790,524$231.5M0.02%+244,961+44.9%Added
Ownership Capital B.V.770,632$225.7M5.03%−26,324−3.3%Reduced
Kayne Anderson Rudnick Investment Management LLC658,991$193.0M0.48%−24,506−3.6%Reduced
Invesco Ltd.585,732$171.5M0.04%+46,652+8.7%Added
Wasatch Advisors Inc512,029$149.9M0.83%+162,544+46.5%Added
Baillie Gifford & Co511,007$149.6M0.12%−104,346−17.0%Reduced
Artisan Partners Limited Partnership479,133$140.3M0.22%−61,794−11.4%Reduced
Norges Bank438,911$128.5M0.02%+12,409+2.9%Added
Eagle Asset Management Inc435,991$127.7M0.68%+12,993+3.1%Added
Jackson Square Partners, LLC425,361$124.6M4.05%+95,135+28.8%Added
Bank of New York Mellon Corp417,293$122.2M0.02%−811−0.2%Reduced
Allianz Asset Management GmbH368,439$107.9M0.20%+10,843+3.0%Added
Northern Trust Corp368,363$107.9M0.02%−18,630−4.8%Reduced
Charles Schwab Investment Management Inc354,411$103.8M0.03%+12,677+3.7%Added
Citadel Advisors LLC345,803$101.3M0.10%+241,802+232.5%Added
JPMorgan Chase & Co326,392$95.6M0.01%+24,445+8.1%Added
Morgan Stanley294,605$86.3M0.01%+15,964+5.7%Added
Neuberger Berman Group LLC282,653$82.8M0.07%−2,160−0.8%Reduced
Teacher Retirement System of Texas272,870$79.9M0.55%+62,736+29.9%Added
Marshall Wace, LLP255,948$75.0M0.14%+158,609+162.9%Added
UBS Asset Management Americas Inc239,200$70.0M0.03%+3,902+1.7%Added
APG Asset Management N.V.254,697$67.5M0.13%+377+0.1%Added
Legal & General Group Plc228,759$67.0M0.02%−5,953−2.5%Reduced
Baird Financial Group, Inc.228,480$66.9M0.15%+42,832+23.1%Added
Stephens Investment Management Group LLC214,886$62.9M0.92%+14,785+7.4%Added
Dimensional Fund Advisors LP202,234$59.2M0.02%+5,475+2.8%Added
Tandem Investment Advisors, Inc.195,676$57.3M2.29%−12,118−5.8%Reduced
SEI Investments Co181,652$53.2M0.09%+30,733+20.4%Added
Burgundy Asset Management Ltd.176,144$51.6M0.57%+5,859+3.4%Added
Nuveen Asset Management, LLC171,184$50.1M0.02%+44,422+35.0%Added
Deutsche Bank AG170,200$49.8M0.03%+41,454+32.2%Added
Van Berkom & Associates Inc.165,439$48.4M1.41%−1,421−0.9%Reduced
Balyasny Asset Management LLC159,580$46.7M0.13%+157,448+7,385.0%Added
Wells Fargo & Company156,334$45.8M0.01%+6,135+4.1%Added
NFJ Investment Group, LLC153,347$44.9M1.24%−16,836−9.9%Reduced
Raymond James & Associates144,018$42.2M0.03%−12,001−7.7%Reduced
Fiera Capital Corp140,238$41.1M0.13%+16,951+13.7%Added
Barclays PLC139,884$41.0M0.02%+46,298+49.5%Added
Bank of America Corp138,375$40.5M0.00%−9,958−6.7%Reduced
Caisse de Depot Et Placement du Quebec135,785$39.8M0.10%+15,757+13.1%Added
GW&K Investment Management, LLC133,851$39.2M0.37%−3,802−2.8%Reduced
Source Financial Advisors LLC115,027$33.7M10.45%+60.0%Added
Goldman Sachs Group Inc114,646$33.6M0.01%+26,090+29.5%Added
HSBC Holdings PLC104,854$30.7M0.03%+3,037+3.0%Added
TD Asset Management Inc102,961$30.2M0.03%+1,844+1.8%Added
Point72 Asset Management, L.P.100,340$29.4M0.09%+100,340New
New York State Common Retirement Fund96,476$28.3M0.04%+21,041+27.9%Added
Sumitomo Mitsui Trust Holdings, Inc.91,542$26.8M0.02%−802−0.9%Reduced
Rhumbline Advisers91,195$26.7M0.03%−652−0.7%Reduced
Amundi92,565$25.2M0.01%−41,517−31.0%Reduced
RMB Capital Management, LLC85,108$24.9M0.76%−7,411−8.0%Reduced
FIL Ltd82,132$24.1M0.03%−12,617−13.3%Reduced
UBS Group AG79,709$23.3M0.01%−704−0.9%Reduced
Ashford Capital Management Inc77,859$22.8M3.05%−10,963−12.3%Reduced
Los Angeles Capital Management LLC70,874$20.8M0.08%−33,636−32.2%Reduced
Mitsubishi UFJ Trust & Banking Corp69,056$20.2M0.05%−7,904−10.3%Reduced
California Public Employees Retirement System68,943$20.2M0.02%−1,435−2.0%Reduced
Bamco Inc67,596$19.8M0.05%−21,221−23.9%Reduced
Bridgewater Associates, LP67,451$19.8M0.11%−54,853−44.8%Reduced
Credit Suisse AG65,959$19.3M0.02%+2,789+4.4%Added
Owls Nest Partners IA, LLC65,129$19.1M4.98%+65,129New
California State Teachers Retirement System60,542$17.7M0.02%+1,124+1.9%Added
Tobam60,214$17.6M1.54%+15,361+34.2%Added
Principal Financial Group Inc59,295$17.4M0.01%+7,835+15.2%Added
Bank of Montreal57,322$17.0M0.01%−33,405−36.8%Reduced
Russell Investments Group, Ltd.56,878$16.7M0.03%+25,572+81.7%Added
Citigroup Inc56,839$16.6M0.02%−35,218−38.3%Reduced
Public Employees Retirement Association of Colorado53,789$15.8M0.07%−487−0.9%Reduced
Nomura Asset Management Co Ltd53,647$15.7M0.06%−974−1.8%Reduced
Bahl & Gaynor Inc53,583$15.7M0.09%−1,063−1.9%Reduced
2Xideas AG50,718$14.9M1.59%+2,458+5.1%Added
Envestnet Asset Management Inc50,220$14.7M0.01%+5,086+11.3%Added
Hudson Bay Capital Management LP50,000$14.6M0.13%+50,000New
Alliancebernstein L.P.49,838$14.6M0.01%−33,039−39.9%Reduced
Robeco Institutional Asset Management B.V.48,893$14.3M0.03%+32,085+190.9%Added
Schroder Investment Management Group47,512$13.9M0.02%+43,473+1,076.3%Added
Jane Street Group, LLC45,603$13.4M0.02%+34,584+313.9%Added
BNP Paribas Arbitrage, SA45,096$13.2M0.02%+20,056+80.1%Added
Gilder Gagnon Howe & Co LLC44,735$13.1M0.18%+44,735New
Manufacturers Life Insurance Company, The44,522$13.0M0.01%+13,497+43.5%Added
State Board of Administration of Florida Retirement System44,230$13.0M0.03%−178−0.4%Reduced
AQR Capital Management LLC40,433$11.8M0.02%−1,560−3.7%Reduced
Assenagon Asset Management S.A.37,984$11.1M0.03%+36,248+2,088.0%Added
Canada Pension Plan Investment Board37,800$11.1M0.01%+27,700+274.3%Added
New York State Teachers Retirement System37,021$10.8M0.02%−692−1.8%Reduced
Picton Mahoney Asset Management36,978$10.8M0.50%+36,978New
Adage Capital Partners GP, L.L.C.36,850$10.8M0.02%−600−1.6%Reduced
Alps Advisors Inc35,905$10.5M0.08%+5,056+16.4%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.37,588$10.5M0.02%+3,823+11.3%Added