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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, Q2 2021

Institutional positions in Marketaxess Holdings Inc as of Jun 30, 2021. 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
551
−34 vs. Q1 2021
Shares held
36.2M
+1.35M (+3.9%) vs. Q1 2021
Total value
$16.8B
−$588.4M (−3.4%) vs. Q1 2021
New holders
49
194 more added
Sold out
83
223 more reduced

4 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2021: 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 holdersQ2 2021: 551 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 heldQ2 2021: $16.8B
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, Q2 2021

Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q1 2021.

Institutions holding MKTX in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
CWM, LLC173$80.0K0.00%00.0%Unchanged
First Horizon Advisors, Inc.177$81.0K0.00%−20−10.2%Reduced
Kistler-Tiffany Companies, LLC191$88.0K0.02%+1+0.5%Added
U S Global Investors Inc200$93.0K0.00%00.0%Unchanged
Riverview Trust Co229$106.0K0.11%00.0%Unchanged
Massmutual Trust Co FSB234$108.0K0.00%−15−6.0%Reduced
Berman Capital Advisors, LLC233$108.0K0.02%+49+26.6%Added
Ci Investments Inc.235$109.0K0.00%+93+65.5%Added
Anfield Capital Management, LLC240$111.0K0.04%+240New
Signaturefd, LLC248$115.0K0.00%+44+21.6%Added
Quadrant Capital Group LLC259$120.0K0.02%−35−11.9%Reduced
Strategic Blueprint, LLC262$121.0K0.02%+262New
State of Wyoming269$125.0K0.08%+269New
Ellis Investment Partners, LLC300$139.0K0.04%00.0%Unchanged
Whittier Trust Co314$146.0K0.00%+294+1,470.0%Added
NuWave Investment Management, LLC337$156.0K0.17%+275+443.5%Added
Agf Investments Inc.388$180.0K0.00%+16+4.3%Added
Hall Laurie J Trustee390$181.0K0.07%00.0%Unchanged
Cetera Advisor Networks LLC435$202.0K0.00%+17+4.1%Added
Pathstone Family Office, LLC438$203.0K0.01%+438New
JSF Financial, LLC439$204.0K0.12%+439New
Ontario Teachers Pension Plan Board453$210.0K0.00%−1,113−71.1%Reduced
Conning Inc.452$210.0K0.01%−45−9.1%Reduced
Wetherby Asset Management Inc458$212.0K0.01%−90−16.4%Reduced
Personal Cfo Solutions, LLC465$216.0K0.04%+38+8.9%Added
V Wealth Advisors LLC465$216.0K0.03%+465New
Chesapeake Wealth Management493$228.0K0.07%−54−9.9%Reduced
Zions Bancorporation, N.A.497$230.0K0.02%+132+36.2%Added
HBK Sorce Advisory LLC499$231.0K0.01%−36−6.7%Reduced
Moors & Cabot, Inc.500$232.0K0.02%00.0%Unchanged
Symmetry Partners, LLC520$241.0K0.02%−1,198−69.7%Reduced
Walleye Capital LLC535$248.0K0.01%+535New
Fort Washington Investment Advisors Inc558$259.0K0.00%00.0%Unchanged
Castleark Management LLC570$264.0K0.01%00.0%Unchanged
Central Bank & Trust Co591$274.0K0.04%−463−43.9%Reduced
Profund Advisors LLC596$276.0K0.01%−24−3.9%Reduced
Livforsakringsbolaget Skandia, Omsesidigt600$278.0K0.02%00.0%Unchanged
Cresset Asset Management, LLC612$284.0K0.00%+94+18.1%Added
Atlas Capital Advisors LLC619$287.0K0.05%−26−4.0%Reduced
Allstate Corp626$290.0K0.01%−71−10.2%Reduced
Spire Wealth Management634$294.0K0.01%−2−0.3%Reduced
Toroso Investments, LLC642$298.0K0.01%+642New
Alps Advisors Inc655$304.0K0.00%00.0%Unchanged
Greenleaf Trust658$305.0K0.00%−2−0.3%Reduced
Johnson Investment Counsel Inc657$305.0K0.00%+24+3.8%Added
Bellevue Group AG662$307.0K0.00%00.0%Unchanged
Blueshift Asset Management, LLC680$315.0K0.02%−232−25.4%Reduced
Precision Wealth Strategies, LLC682$316.0K0.27%+99+17.0%Added
Donaldson Capital Management, LLC684$317.0K0.02%−95−12.2%Reduced
PEAK6 Investments LLC688$320.0K0.01%+316+84.9%Added
Quantbot Technologies LP697$323.0K0.03%+362+108.1%Added
World Asset Management Inc708$328.0K0.03%−26−3.5%Reduced
Cambridge Investment Research Advisors, Inc.710$329.0K0.00%−636−47.3%Reduced
Snowden Capital Advisors LLC714$331.0K0.02%−320−30.9%Reduced
Marcum Wealth, LLC716$332.0K0.05%00.0%Unchanged
Mason Capital Management LLC750$348.0K0.08%+750New
Advisory Services Network, LLC754$349.0K0.01%−132−14.9%Reduced
Caxton Associates LP775$359.0K0.05%−4−0.5%Reduced
First Manhattan Co785$363.0K0.00%00.0%Unchanged
Kestra Private Wealth Services, LLC784$363.0K0.02%+784New
Prelude Capital Management, LLC801$371.0K0.02%−309−27.8%Reduced
RMR Wealth Builders801$371.0K0.12%00.0%Unchanged
Meiji Yasuda Asset Management Co Ltd.807$374.0K0.02%00.0%Unchanged
Parallax Volatility Advisers, L.P.827$383.0K0.00%+354+74.8%Added
Jump Financial, LLC827$383.0K0.04%+827New
Tobam830$385.0K0.02%−761−47.8%Reduced
First Republic Investment Management, Inc.833$386.0K0.00%−44−5.0%Reduced
Argent Trust Co832$386.0K0.03%+17+2.1%Added
Nomura Holdings Inc848$394.0K0.00%−15,476−94.8%Reduced
Redpoint Investment Management Pty Ltd852$395.0K0.03%−128−13.1%Reduced
Ethic Inc.863$400.0K0.05%+265+44.3%Added
Vontobel Holding Ltd.878$415.0K0.00%−1,269−59.1%Reduced
USS Investment Management Ltd900$417.0K0.00%00.0%Unchanged
Charles Schwab Investment Advisory, Inc.907$420.0K0.00%+907New
Summit Global Investments898$424.0K0.03%−726−44.7%Reduced
BP PLC916$425.0K0.02%−366−28.5%Reduced
Capital Analysts, LLC932$432.0K0.03%+5+0.5%Added
Everence Capital Management Inc960$445.0K0.04%00.0%Unchanged
Benedict Financial Advisors Inc966$448.0K0.12%−12−1.2%Reduced
Kentucky Retirement Systems Insurance Trust Fund989$458.0K0.05%−82−7.7%Reduced
Bridgefront Capital, LLC997$462.0K0.17%+176+21.4%Added
Stevens Capital Management LP998$463.0K0.14%+435+77.3%Added
Centaurus Financial, Inc.1,005$466.0K0.04%+578+135.4%Added
Advisors Asset Management, Inc.1,007$467.0K0.01%+457+83.1%Added
Kovack Advisors, Inc.1,018$472.0K0.05%+74+7.8%Added
Colony Group LLC1,032$478.0K0.01%−692−40.1%Reduced
Emerald Advisers, LLC1,036$480.0K0.02%00.0%Unchanged
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH1,049$486.0K0.05%−40−3.7%Reduced
IBM Retirement Fund1,054$489.0K0.04%−209−16.5%Reduced
LPL Financial LLC1,067$494.0K0.00%−435−29.0%Reduced
Exchange Traded Concepts, LLC1,083$502.0K0.02%+275+34.0%Added
Commerce Bank1,085$503.0K0.00%−179−14.2%Reduced
Boothbay Fund Management, LLC1,090$505.0K0.02%+1,090New
Commonwealth Equity Services, LLC1,092$506.0K0.00%+223+25.7%Added
Impax Asset Management Group plc1,093$507.0K0.00%00.0%Unchanged
Wasatch Advisors Inc1,099$509.0K0.00%+197+21.8%Added
Advisor Partners LLC1,126$522.0K0.03%−53−4.5%Reduced
B. Metzler seel. Sohn & Co. Holding AG1,138$528.0K0.01%−1,109−49.4%Reduced
Northwestern Mutual Wealth Management Co1,149$532.0K0.00%−79−6.4%Reduced
Verition Fund Management LLC1,151$534.0K0.01%+692+150.8%Added