13FBOX
MARKETAXESS HLDGS INC · 13F Institutional Holdings
Options Calculator Rankings
M

MARKETAXESS HLDGS INC

MKTX
Institutions
396
Combined AUM (Q2 2026)
$4.70B
Combined Shares (Q2 2026)
41.4M
Overall Trend
Increase
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+8.1M
188 · 58 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-5.4M
273 · 110 Exit · ≈
⚖️ Net
+2.6M
Net Buy
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$4.70B
Institutions
396
New Buys
58
Adds
130
Reduces
163
Exits
110
Unchanged
45
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
BlackRock, Inc.
0.01%0.01%#147$453.9M4.0M$672.3M4.1M-75,318-1.85%Reduce
PRIMECAP MANAGEMENT CO/CA/
0.24%0.43%#22$397.8M3.5M$552.2M3.3M+157,780+4.71%Add
North Reef Capital Management LP
14.77%10.65%#1$385.3M3.4M$309.3M1.9M+1.5M+81.07%Add
VANGUARD PORTFOLIO MANAGEMENT LLC
0.01%0.02%#125$238.4M2.1M$357.0M2.2M-63,398-2.93%Reduce
AQR CAPITAL MANAGEMENT LLC
0.08%0.2%#45$222.8M2.0M$442.8M2.7M-696,457-25.95%Reduce
VANGUARD CAPITAL MANAGEMENT LLC
<0.01%0.01%#194$175.5M1.5M$265.5M1.6M-62,589-3.89%Reduce
FMR LLC
0.01%0.01%#145$159.5M1.4M$250.7M1.5M-114,423-7.53%Reduce
STATE STREET CORP
<0.01%0.01%#181$145.4M1.3M$211.3M1.3M+912+0.07%Add
Neuberger Berman Group LLC
0.09%0.12%#40$139.6M1.2M$159.4M966,029+263,900+27.32%Add
MILLENNIUM MANAGEMENT LLC
0.04%0.08%#69$131.2M1.2M$198.9M1.2M-49,098-4.07%Reduce
CITIGROUP INC
0.04%<0.01%#76$120.8M1.1M$3.5M21,390+1.0M+4,875.51%Add
GOLDMAN SACHS GROUP INC
0.01%0.01%#126$117.0M1.0M$84.0M509,043+522,266+102.60%Add
BANK OF MONTREAL /CAN/
0.04%0.06%#77$115.4M1.0M$168.4M1.0M-3,535-0.35%Reduce
GEODE CAPITAL MANAGEMENT, LLC
0.01%0.01%#158$112.9M994,772$142.4M862,987+131,785+15.27%Add
VAN ECK ASSOCIATES CORP
0.06%0.15%#56$104.9M924,617$204.5M1.2M-314,668-25.39%Reduce
DIMENSIONAL FUND ADVISORS LP
0.01%0.02%#120$67.8M597,894$95.9M581,484+16,410+2.82%Add
NORGES BANK
0.01%0.02%#151$65.0M572,422$109.8M507,346+65,076+12.83%Add
CITADEL ADVISORS LLC
0.01%<0.01%#142$62.2M548,489$20.2M122,659+425,830+347.17%Add
GUARDCAP ASSET MANAGEMENT Ltd
4.42%6.09%#2$62.2M536,324$106.4M643,370-107,046-16.64%Reduce
TWO SIGMA INVESTMENTS, LP
0.04%0.07%#67$61.7M543,890$86.5M524,024+19,866+3.79%Add
Azora Capital LP
2.45%#3$58.2M513,081$00+513,081New Buy
Davis Asset Management, L.P.
1.44%0.52%#6$56.7M500,000$18.0M108,846+391,154+359.36%Add
JPMORGAN CHASE & CO
<0.01%<0.01%#221$48.3M438,001$71.3M432,826+5,175+1.20%Add
MORGAN STANLEY
<0.01%0.01%#225$48.0M422,864$95.7M549,023-126,159-22.98%Reduce
LOS ANGELES CAPITAL MANAGEMENT LLC
0.16%0.01%#27$44.5M392,065$1.6M9,581+382,484+3,992.11%Add
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
<0.01%0.01%#171$37.5M330,815$55.8M338,507-7,692-2.27%Reduce
BANK OF AMERICA CORP /DE/
<0.01%<0.01%#230$34.4M303,517$43.5M263,858+39,659+15.03%Add
UBS Group AG
<0.01%0.01%#187$31.6M278,745$44.9M272,238+6,507+2.39%Add
Bank of New York Mellon Corp
<0.01%0.01%#175$29.2M257,642$47.8M289,940-32,298-11.14%Reduce
RDST Capital LLC
2.32%4.69%#4$28.0M247,112$48.7M295,267-48,155-16.31%Reduce
NORTHERN TRUST CORP
<0.01%0.01%#208$28.0M246,521$39.0M236,350+10,171+4.30%Add
COOKE & BIELER LP
0.31%0.42%#21$27.1M238,755$37.3M226,220+12,535+5.54%Add
VANGUARD FIDUCIARY TRUST CO
0.01%0.01%#164$25.4M223,656$37.9M229,427-5,771-2.52%Reduce
HRT FINANCIAL LP
0.04%0.06%#71$23.4M205,854$22.6M136,952+68,902+50.31%Add
BNP Paribas Asset Management Holding S.A.
0.02%#89$23.2M204,309$00+204,309New Buy
VICTORY CAPITAL MANAGEMENT INC
0.01%0.02%#117$23.0M202,731$33.8M204,932-2,201-1.07%Reduce
RENAISSANCE TECHNOLOGIES LLC
0.03%0.04%#80$22.7M200,000$27.6M167,100+32,900+19.69%Add
SUSQUEHANNA INTERNATIONAL GROUP, LLP
<0.01%<0.01%#245$21.9M192,779$13.7M83,300+109,479+131.43%Add
Connor, Clark & Lunn Investment Management Ltd.
0.04%0.07%#75$21.2M186,658$28.7M174,059+12,599+7.24%Add
PRINCIPAL FINANCIAL GROUP INC
0.01%0.02%#129$19.7M173,312$30.0M181,798-8,486-4.67%Reduce
Freestone Grove Partners LP
0.13%#33$19.6M172,799$00+172,799New Buy
PUBLIC SECTOR PENSION INVESTMENT BOARD
0.05%0.1%#64$17.9M157,338$31.7M192,230-34,892-18.15%Reduce
Sone Capital Management, LLC
1.34%2.22%#8$17.7M155,522$26.4M159,966-4,444-2.78%Reduce
TUDOR INVESTMENT CORP ET AL
0.02%#88$17.0M149,747$00+149,747New Buy
Nuveen, LLC
<0.01%0.01%#188$16.8M148,468$24.4M148,081+387+0.26%Add
Invesco Ltd.
<0.01%<0.01%#261$16.0M140,817$19.5M118,332+22,485+19.00%Add
Champlain Investment Partners, LLC
0.4%0.44%#19$15.4M136,087$34.7M210,076-73,989-35.22%Reduce
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
0.01%0.03%#154$13.8M122,005$48.7M295,470-173,465-58.71%Reduce
M&G Plc
0.07%#51$13.7M121,309$00+121,309New Buy
BANK OF NOVA SCOTIA
0.02%0.01%#94$13.1M115,410$4.1M24,612+90,798+368.92%Add

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow