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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
Gsa Capital Partners LLP2,176$465.0K0.04%−2,685−55.2%Reduced
Portside Wealth Group, LLC2,171$467.0K0.09%+4+0.2%Added
PEAK6 Investments LLC2,224$475.1K0.02%+2,213+20,118.2%Added
Louisiana State Employees Retirement System2,300$491.4K0.01%00.0%Unchanged
Centiva Capital, LP2,305$492.4K0.02%+613+36.2%Added
Guggenheim Capital LLC2,352$502.5K0.00%+91+4.0%Added
Two Sigma Securities, LLC2,375$507.4K0.02%+2,375New
Cognios Beta Neutral Large Cap Fund, LP2,403$513.4K0.67%+2,403New
Heartland Bank & Trust Co2,438$520.9K0.41%+37+1.5%Added
JustInvest LLC2,469$527.5K0.02%−1,747−41.4%Reduced
Simplex Trading, LLC2,472$528.0K0.02%+2,472New
Commerce Bank2,567$548.4K0.00%−141−5.2%Reduced
Hartford Investment Management Co2,586$552.5K0.02%−80−3.0%Reduced
Securian Asset Management, Inc2,629$561.7K0.02%−538−17.0%Reduced
Banque Pictet & Cie SA2,666$569.6K0.01%+741+38.5%Added
AE Wealth Management LLC2,688$574.4K0.00%+30+1.1%Added
Creative Planning2,702$577.4K0.00%+805+42.4%Added
Banque Cantonale Vaudoise2,728$583.0K0.03%−3,972−59.3%Reduced
Candriam Luxembourg S.C.A.2,730$583.2K0.00%00.0%Unchanged
Mackenzie Financial Corp2,851$583.8K0.00%+65+2.3%Added
Quantamental Technologies LLC2,736$584.5K0.55%+2,736New
Nordea Investment Management AB2,775$594.5K0.00%−7,820−73.8%Reduced
Graham Capital Management, L.P.2,783$594.6K0.02%+2,783New
Swedbank AB2,852$609.3K0.00%00.0%Unchanged
Empirical Asset Management, LLC2,890$617.3K0.54%+1,852+178.4%Added
Maryland State Retirement & Pension System2,937$627.5K0.01%00.0%Unchanged
Kentucky Retirement Systems3,044$650.3K0.02%+15+0.5%Added
Ontario Teachers Pension Plan Board3,055$652.7K0.01%00.0%Unchanged
Crossmark Global Holdings, Inc.2,793$653.0K0.01%−59−2.1%Reduced
Pacer Advisors, Inc.3,082$658.4K0.00%+205+7.1%Added
Captrust Financial Advisors3,256$695.6K0.00%+1,354+71.2%Added
Mariner, LLC3,286$701.9K0.00%−742−18.4%Reduced
Campbell Newman Asset Management Inc3,295$704.0K0.07%−54−1.6%Reduced
Anchor Investment Management, LLC3,327$710.8K0.09%+275+9.0%Added
Sumitomo Mitsui DS Asset Management Company, Ltd3,341$713.8K0.01%+52+1.6%Added
Oppenheimer Asset Management Inc.3,365$718.9K0.01%−43−1.3%Reduced
Teachers Retirement System of the State of Kentucky3,385$723.0K0.01%−21,317−86.3%Reduced
British Columbia Investment Management Corp3,407$727.9K0.01%00.0%Unchanged
Formidable Asset Management, LLC3,437$734.3K0.16%+439+14.6%Added
Gulf International Bank (UK) Ltd3,463$739.0K0.02%−294−7.8%Reduced
Bank of Nova Scotia3,516$751.1K0.00%+470+15.4%Added
Fifth Third Bancorp3,568$762.3K0.00%−160−4.3%Reduced
Storebrand Asset Management AS3,643$778.3K0.00%−143−3.8%Reduced
Wellington Management Group LLP3,650$779.8K0.00%+363+11.0%Added
Ossiam3,740$799.0K0.01%−4,507−54.7%Reduced
Dark Forest Capital Management LP3,856$823.8K0.07%+3,856New
Geneva Capital Management LLC3,885$829.9K0.02%−988−20.3%Reduced
North Reef Capital Management LP4,000$854.6K0.05%+4,000New
Aviva PLC4,032$861.4K0.00%−23,248−85.2%Reduced
Schroder Investment Management Group4,039$862.9K0.00%−1,690−29.5%Reduced
Nissay Asset Management Corp4,225$902.6K0.01%+124+3.0%Added
Timber Creek Capital Management LLC4,528$967.4K0.35%+98+2.2%Added
Sherbrooke Park Advisers LLC4,573$977.0K0.31%+2,473+117.8%Added
KBC Group NV4,577$978.0K0.00%+23+0.5%Added
Dakota Wealth Management4,601$983.0K0.04%+2,358+105.1%Added
Illinois Municipal Retirement Fund4,622$987.0K0.02%00.0%Unchanged
Janus Henderson Group PLC4,628$989.2K0.00%−249−5.1%Reduced
Cim Investment Mangement Inc4,664$996.4K0.36%+2,372+103.5%Added
Duality Advisers, LP4,690$1.00M0.12%−1,748−27.2%Reduced
Congress Wealth Management LLC4,910$1.05M0.02%+371+8.2%Added
Aigen Investment Management, LP4,917$1.05M0.20%−146−2.9%Reduced
B. Metzler seel. Sohn & Co. AG4,926$1.05M0.02%+4,082+483.6%Added
Mutual of America Capital Management LLC5,273$1.13M0.01%−144−2.7%Reduced
Harel Insurance Investments & Financial Services Ltd.5,380$1.13M0.02%+5,380New
Atria Investments LLC5,275$1.13M0.02%+693+15.1%Added
Yousif Capital Management, LLC5,289$1.13M0.01%−8−0.2%Reduced
Pinebridge Investments, L.P.5,359$1.14M0.01%−2,421−31.1%Reduced
Pine Valley Investments Ltd Liability Co5,372$1.15M0.11%+2,454+84.1%Added
Linden Thomas Advisory Services, LLC5,382$1.15M0.26%−1,292−19.4%Reduced
CIBC Asset Management Inc5,382$1.15M0.00%−32−0.6%Reduced
Pearl River Capital, LLC5,553$1.19M0.19%+1,898+51.9%Added
DekaBank Deutsche Girozentrale5,735$1.20M0.00%+62+1.1%Added
Investment Management Corp of Ontario5,607$1.20M0.05%+1,699+43.5%Added
State of Tennessee, Treasury Department5,767$1.23M0.00%−99−1.7%Reduced
Comerica Bank5,771$1.23M0.01%−30,486−84.1%Reduced
CWM Advisors, LLC5,839$1.25M0.16%+891+18.0%Added
Campbell & CO Investment Adviser LLC5,877$1.26M0.15%+1,577+36.7%Added
Toroso Investments, LLC5,953$1.27M0.04%+1,397+30.7%Added
XTX Topco Ltd6,037$1.29M0.22%+6,037New
CIBC World Markets Corp6,052$1.29M0.01%−1,621−21.1%Reduced
Tredje AP-fonden6,218$1.33M0.02%−570−8.4%Reduced
Tower Research Capital LLC (TRC)6,269$1.34M0.04%+5,981+2,076.7%Added
Utah Retirement Systems6,322$1.35M0.02%00.0%Unchanged
Czech National Bank6,585$1.41M0.02%+2,126+47.7%Added
Seven Eight Capital, LP6,604$1.41M0.17%+5,017+316.1%Added
Handelsbanken Fonder AB6,644$1.42M0.01%00.0%Unchanged
Ostrum Asset Management6,678$1.43M0.13%+5,309+387.8%Added
IFM Investors Pty Ltd6,901$1.47M0.02%+500+7.8%Added
American Century Companies Inc7,027$1.50M0.00%−694,415−99.0%Reduced
Alamar Capital Management, LLC7,052$1.51M1.42%+880+14.3%Added
Nisa Investment Advisors, LLC7,321$1.56M0.01%−52−0.7%Reduced
Skandinaviska Enskilda Banken AB (publ)7,326$1.56M0.01%−31−0.4%Reduced
Brown Capital Management LLC7,491$1.60M0.02%00.0%Unchanged
CIBC World Markets Inc.7,500$1.60M0.01%+174+2.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys7,576$1.62M0.01%+1,006+15.3%Added
Algert Global LLC7,601$1.62M0.08%−4,844−38.9%Reduced
Jump Financial, LLC7,738$1.65M0.06%+522+7.2%Added
Oregon Public Employees Retirement Fund7,760$1.66M0.02%−2,229−22.3%Reduced
National Bank of Canada8,039$1.69M0.00%−1,974−19.7%Reduced
Stephens Inc8,022$1.71M0.03%−73−0.9%Reduced