MarketAxess Holdings Inc.
MX ˙ BMV ˙ US57060D1081
SecurityMX:MKTX / MarketAxess Holdings Inc.
InstitutionComerica Bank
Latest Disclosed Ownership8,072 shares
Latest Disclosed Value $ 1,463,031
Comerica Bank reports 22.45% decrease in ownership of MKTX / MarketAxess Holdings Inc.

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 8,072 shares of MarketAxess Holdings Inc. (MX:MKTX) valued at $1,463,031 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 10,409 shares of MarketAxess Holdings Inc.. This represents a change in shares of -22.45% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-01-29 2025-12-31 13F MARKETAXESS HLDGS COM 57060D108 8,072 -2,337 -22.45 1,463 -19.31 0.0058
2025-11-14 2025-09-30 13F MARKETAXESS HLDGS COM 57060D108 10,409 5,240 101.37 1,814 57.11 0.0068
2025-08-14 2025-06-30 13F MARKETAXESS HLDGS COM 57060D108 5,169 -12 -0.23 1,154 3.04 0.0045
2025-05-14 2025-03-31 13F MARKETAXESS HLDGS COM 57060D108 5,181 48 0.94 1,121 -3.45 0.0047
2025-02-14 2024-12-31 13F/A-1 MARKETAXESS HLDGS COM 57060D108 5,133 -157 -2.97 1,160 -14.39 0.0047
2025-02-14 2024-12-31 13F MARKETAXESS HLDGS COM 57060D108 5,133 -157 1,160 0.0039
2024-11-14 2024-09-30 13F MARKETAXESS HLDGS COM 57060D108 5,290 -48 -0.90 1,355 26.64 0.0054
2024-08-15 2024-06-30 13F MARKETAXESS HOLDINGS COMMON 57060D108 5,338 16 0.30 1,070 -8.23 0.0045
2024-05-16 2024-03-31 13F MARKETAXESS HOLDINGS COMMON 57060D108 5,322 -368 -6.47 1,167 -30.01 0.0050
2024-02-14 2023-12-31 13F MARKETAXESS HOLDINGS COMMON 57060D108 5,690 -81 -1.40 1,666 35.23 0.0077
2023-11-21 2023-09-30 13F MARKETAXESS HLDGS COMMON 57060D108 5,771 -30,486 -84.08 1,233 0.0064
2023-08-22 2023-06-30 13F MARKETAXESS HOLDINGS EQU 57060D108 36,257 7,282 25.13 0 -100.00 0.0019
2023-01-26 2022-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 28,975 24,397 532.92 10 -99.19 0.0739
2022-10-28 2022-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 4,578 64 1.42 1,107 -10.73 0.0093
2022-08-02 2022-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 4,514 15 0.33 1,240 0.65 0.0102
2022-04-27 2022-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 4,499 -80 -1.75 1,232 -23.57 0.0089
2022-02-18 2021-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 4,579 -2,206 -32.51 1,612 -42.82 0.0119
2021-11-22 2021-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 6,785 -1,694 -19.98 2,819 -29.60 0.0170
2021-08-26 2021-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 8,479 -391 -4.41 4,004 -11.04 0.0239
2021-04-28 2021-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 8,870 -439 -4.72 4,501 -5.14 0.0268
2021-01-28 2020-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 9,309 55 0.59 4,745 -8.26 0.0301
2020-10-30 2020-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 9,254 -180 -1.91 5,172 4.00 0.0375
2020-07-31 2020-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 9,434 14 0.15 4,973 25.39 0.0383
2020-05-01 2020-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 9,420 -19 -0.20 3,966 17.34 0.0364
2020-02-07 2019-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 9,439 1,873 24.76 3,380 27.84 0.0256
2019-10-31 2019-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 7,566 -14,715 -66.04 2,644 -67.76 0.0209
2019-08-02 2019-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 22,281 -2,559 -10.30 8,200 27.73 0.0657
2019-05-02 2019-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 24,840 -557 -2.19 6,420 18.41 0.0520
2019-02-06 2018-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 25,397 359 1.43 5,422 12.28 0.0461
2018-11-01 2018-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 25,038 -4,686 -15.77 4,829 -21.75 0.0390
2018-08-01 2018-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 29,724 -871 -2.85 6,171 -0.48 0.0432
2018-05-01 2018-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 30,595 551 1.83 6,201 5.46 0.0443
2018-02-02 2017-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 30,044 202 0.68 5,880 13.87 0.0392
2017-11-06 2017-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 29,842 120 0.40 5,164 -11.70 0.0374
2017-08-03 2017-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 29,722 266 0.90 5,848 1.35 0.0438
2017-05-03 2017-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 29,456 1,270 4.51 5,770 30.51 0.0438
2017-02-08 2016-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 28,186 1,520 5.70 4,421 2.69 0.0350
2016-08-11 2016-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 26,666 515 1.97 4,305 32.01 0.0372
2016-05-11 2016-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 26,151 -744 -2.77 3,261 14.66 0.0291
2016-02-05 2015-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 26,895 -11,674 -30.27 2,844 -20.60 0.0279
2015-11-12 2015-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 38,569 -38,521 -49.97 3,582 -49.92 0.0339
2015-08-13 2015-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 77,090 38,544 99.99 7,152 123.85 0.0307
2015-05-15 2015-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 38,546 -37,174 -49.09 3,195 -41.16 0.0271
2015-02-13 2014-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 75,720 59,786 375.21 5,430 298.09 0.0235
2014-10-21 2014-09-30 13F MEASUREMENT SPECIALTIES COM 583421102 15,934 1,104 7.44 1,364 6.90 0.0120
2014-10-21 2014-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 38,542 619 2,384 0.0210
2014-08-12 2014-06-30 13F MEASUREMENT SPECIALTIES COM 583421102 14,830 -369 -2.43 1,276 23.76 0.0109
2014-08-12 2014-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 37,923 -295 2,050 0.0174
2014-05-15 2014-03-31 13F MEASUREMENT SPECIALTIES COM 583421102 15,199 -706 -4.44 1,031 6.84 0.0079
2014-05-15 2014-03-31 13F MARKETAXESS HOLDINGS COM 57060D108 38,218 -1,159 2,263 0.0173
2014-02-11 2013-12-31 13F MEASUREMENT SPECIALTIES COM 583421102 15,905 -328 -2.02 965 9.66 0.0075
2014-02-11 2013-12-31 13F MARKETAXESS HOLDINGS COM 57060D108 39,377 -2,734 2,635 0.0204
2013-11-12 2013-09-30 13F MEASUREMENT SPECIALTIES COM 583421102 16,233 -350 -2.11 880 13.99 0.0061
2013-11-12 2013-09-30 13F MARKETAXESS HOLDINGS COM 57060D108 42,111 975 2,524 0.0176
2013-08-13 2013-06-30 13F/A-1 MEASUREMENT SPECIALTIES COM 583421102 16,583 16,583 772 0.0063
2013-08-13 2013-06-30 13F/A-1 MARKETAXESS HOLDINGS COM 57060D108 41,136 41,136 1,923 0.0157
2013-08-08 2013-06-30 13F MEASUREMENT SPECIALTIES COM 583421102 49,749 2,316
2013-08-08 2013-06-30 13F MARKETAXESS HOLDINGS COM 57060D108 203,300 9,503
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.