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MarketAxess Holdings

447 hedge funds and large institutions have $6.21B invested in MarketAxess Holdings in 2025 Q3 according to their latest regulatory filings, with 62 funds opening new positions, 159 increasing their positions, 184 reducing their positions, and 136 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

less ownership

Funds ownership:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

25% less capital invested

Capital invested by funds: $8.24B → $6.21B (-$2.03B)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

54% less first-time investments, than exits

New positions opened: 62 | Existing positions closed: 136

Holders
447
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$192M
Puts
$22.6M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
CIA
276
Caerus Investment Advisors
Texas
$342K
AMI
277
Amica Mutual Insurance
Rhode Island
$340K
HKAM
278
Horizon Kinetics Asset Management
New York
$340K
NPF
279
Norris Perne & French
Michigan
$337K
KIA
280
Knollwood Investment Advisory
Maryland
$337K
URS
281
Utah Retirement Systems
Utah
$336K
X
282
Xponance
Pennsylvania
$328K
MAS
283
Meeder Advisory Services
Ohio
$327K
BFA
284
Benedict Financial Advisors
Georgia
$326K
XSC
285
X-Square Capital
Puerto Rico
$326K
SC
286
SummitTX Capital
Texas
$319K
BFM
287
Boothbay Fund Management
New York
$311K
RIL
288
Rothschild Investment LLC
Illinois
$302K
Jones Financial Companies
289
Jones Financial Companies
Missouri
$302K
SLAM
290
Swiss Life Asset Management
$300K
GCM
291
Graham Capital Management
Connecticut
$298K
William Blair & Company
292
William Blair & Company
Illinois
$294K
MC
293
Machina Capital
France
$287K
GC
294
Globeflex Capital
California
$287K
BPC
295
Banque Pictet & Cie
Switzerland
$287K
SRC
296
Sage Rhino Capital
California
$283K
GIM
297
Glenmede Investment Management
Pennsylvania
$276K
MA
298
MYDA Advisors
New York
$264K
TSS
299
Two Sigma Securities
New York
$256K
Truist Financial
300
Truist Financial
North Carolina
$249K