MarketAxess Holdings Inc.
MX ˙ BMV ˙ US57060D1081
SecurityMX:MKTX / MarketAxess Holdings Inc.
InstitutionEverSource Wealth Advisors, LLC
Latest Disclosed Ownership3,098 shares
Latest Disclosed Value $ 511,109
EverSource Wealth Advisors, LLC reports 9.62% increase in ownership of MKTX / MarketAxess Holdings Inc.

On May 15, 2026 - EverSource Wealth Advisors, LLC filed a 13F-HR/A form disclosing ownership of 3,098 shares of MarketAxess Holdings Inc. (MX:MKTX) valued at $511,109 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 2,826 shares of MarketAxess Holdings Inc.. This represents a change in shares of 9.62% 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)
2026-05-15 2026-03-31 13F/A-1 MARKETAXESS HLDGS INC COM Stock 57060D108 3,098 272 9.62 511 -0.20 0.0024
2026-05-14 2026-03-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 1,283 -1,543 98 0.0030
2026-02-06 2025-12-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 2,826 2,183 339.50 512 357.14 0.0188
2025-11-10 2025-09-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 643 -611 -48.72 112 -60.00 0.0044
2025-08-13 2025-06-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 1,254 1,187 1,771.64 280 1,900.00 0.0126
2025-05-13 2025-03-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 67 50 294.12 14 366.67 0.0008
2025-02-10 2024-12-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 17 1 6.25 4 -25.00 0.0002
2024-11-08 2024-09-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 16 2 14.29 4 33.33 0.0003
2024-08-13 2024-06-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 14 6 75.00 3 200.00 0.0002
2024-06-11 2024-03-31 13F/A-1 MARKETAXESS HLDGS INC COM Stock 57060D108 8 -5 -38.46 2 -66.67 0.0001
2024-05-13 2024-03-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 13 0 4 0.0001
2024-02-09 2023-12-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 13 -201 -93.93 4 -93.33 0.0003
2023-11-03 2023-09-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 214 -12 -5.31 46 -23.73 0.0048
2023-08-04 2023-06-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 226 -4 -1.74 59 -33.71 0.0065
2023-05-11 2023-03-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 230 4 1.77 90 41.27 0.0112
2023-02-09 2022-12-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 226 169 296.49 63 384.62 0.0095
2022-11-07 2022-09-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 57 43 307.14 13 333.33 0.0030
2022-08-01 2022-06-30 13F MARKETAXESS HLDGS INC COM Stock 57060D108 14 14 3 0.0008
2022-05-25 2022-03-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 0 -18 -100.00 0 -100.00
2022-02-17 2021-12-31 13F/A-1 MARKETAXESS HLDGS INC COM Stock 57060D108 18 18 7 0.0020
2022-02-07 2021-12-31 13F MARKETAXESS HLDGS INC COM Stock 57060D108 18 18 7 0.0020
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.