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MarketAxess Holdings

443 hedge funds and large institutions have $6.21B invested in MarketAxess Holdings in 2025 Q3 according to their latest regulatory filings, with 61 funds opening new positions, 159 increasing their positions, 184 reducing their positions, and 134 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: 61 | Existing positions closed: 134

Holders
443
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
BC
276
Bayforest Capital
United Kingdom
$345K
CIA
277
Caerus Investment Advisors
Texas
$342K
AMI
278
Amica Mutual Insurance
Rhode Island
$340K
HKAM
279
Horizon Kinetics Asset Management
New York
$340K
NPF
280
Norris Perne & French
Michigan
$337K
KIA
281
Knollwood Investment Advisory
Maryland
$337K
URS
282
Utah Retirement Systems
Utah
$336K
X
283
Xponance
Pennsylvania
$328K
MAS
284
Meeder Advisory Services
Ohio
$327K
BFA
285
Benedict Financial Advisors
Georgia
$326K
XSC
286
X-Square Capital
Puerto Rico
$326K
SC
287
SummitTX Capital
Texas
$319K
SWGC
288
Summit Wealth Group (Colorado)
Colorado
$312K
BFM
289
Boothbay Fund Management
New York
$311K
RIL
290
Rothschild Investment LLC
Illinois
$302K
Jones Financial Companies
291
Jones Financial Companies
Missouri
$302K
SLAM
292
Swiss Life Asset Management
$300K
GCM
293
Graham Capital Management
Connecticut
$298K
William Blair & Company
294
William Blair & Company
Illinois
$294K
MC
295
Machina Capital
France
$287K
GC
296
Globeflex Capital
California
$287K
BPC
297
Banque Pictet & Cie
Switzerland
$287K
SRC
298
Sage Rhino Capital
California
$283K
GIM
299
Glenmede Investment Management
Pennsylvania
$276K
MA
300
MYDA Advisors
New York
$264K