MarketAxess Holdings Inc.
MX ˙ BMV ˙ US57060D1081
SecurityMX:MKTX / MarketAxess Holdings Inc.
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership11,594 shares
Latest Disclosed Value $ 1,912,778
Fred Alger Management, Llc reports 0.47% decrease in ownership of MKTX / MarketAxess Holdings Inc.

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 11,594 shares of MarketAxess Holdings Inc. (MX:MKTX) valued at $1,912,778 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 11,649 shares of MarketAxess Holdings Inc.. This represents a change in shares of -0.47% 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 MarketAxess Holdings Equity 57060D108 11,594 -55 -0.47 1,913 -9.43 0.0053
2026-02-17 2025-12-31 13F MarketAxess Holdings Equity 57060D108 11,649 -1,449 -11.06 2,111 -7.49 0.0083
2025-11-14 2025-09-30 13F MarketAxess Holdings Equity 57060D108 13,098 0 0.00 2,282 -21.98 0.0089
2025-08-14 2025-06-30 13F MarketAxess Holdings Equity 57060D108 13,098 13,098 2,925 0.0131
2024-05-15 2024-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 0 -32,956 -100.00 0 -100.00
2024-02-14 2023-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 32,956 32,797 20,627.04 9,651 29,145.45 0.0521
2023-11-14 2023-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 159 -49 -23.56 34 -38.89 0.0002
2023-11-14 2023-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 159 -49 34 0.0002
2023-08-14 2023-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 208 36 20.93 54 -19.40 0.0003
2023-05-16 2023-03-31 13F/A-1 MARKETAXESS HOLDINGS Common 57060D108 172 -58 -25.22 67 4.69 0.0004
2023-05-15 2023-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 172 -58 67 0.0003
2023-02-14 2022-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 230 0 0.00 64 25.49 0.0003
2022-11-15 2022-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 230 0 0.00 51 -13.56 0.0003
2022-08-15 2022-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 230 0 0.00 59 -24.36 0.0003
2022-05-16 2022-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 230 30 15.00 78 -4.88 0.0002
2022-02-14 2021-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 200 -2,031 -91.04 82 -91.27 0.0002
2021-11-15 2021-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 2,231 -4 -0.18 939 -9.36 0.0022
2021-08-16 2021-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 2,235 -3,511 -61.10 1,036 -63.79 0.0024
2021-05-17 2021-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 5,746 -11,734 -67.13 2,861 -71.31 0.0075
2021-02-16 2020-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 17,480 -19,690 -52.97 9,973 -44.29 0.0259
2020-11-13 2020-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 37,170 15,893 74.70 17,901 67.96 0.0520
2020-08-14 2020-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 21,277 -1,666 -7.26 10,658 39.69 0.0351
2020-05-19 2020-03-31 13F/A-1 MARKETAXESS HOLDINGS Common 57060D108 22,943 10,694 87.31 7,630 64.30 0.0335
2020-05-15 2020-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 22,943 10,694 7,630 33,570.1326
2020-02-14 2019-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 12,249 -4,067 -24.93 4,644 -13.08 0.0171
2019-11-14 2019-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 16,316 5,342 48.68 5,343 51.49 0.0210
2019-08-14 2019-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 10,974 -22,130 -66.85 3,527 -56.70 0.0135
2019-05-14 2019-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 33,104 -8,009 -19.48 8,146 -6.24 0.0324
2019-02-14 2018-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 41,113 20,085 95.52 8,688 131.49 0.0400
2018-11-14 2018-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 21,028 -94,776 -81.84 3,753 -83.62 0.0141
2018-07-19 2018-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 115,804 -37,691 -24.56 22,913 -31.35 0.0962
2018-05-10 2018-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 153,495 11,965 8.45 33,376 16.89 0.1552
2018-02-14 2017-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 141,530 -15,076 -9.63 28,554 -1.18 0.1289
2017-11-14 2017-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 156,606 -36,114 -18.74 28,895 -25.44 0.1352
2017-08-14 2017-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 192,720 20,901 12.16 38,756 20.31 0.1851
2017-05-15 2017-03-31 13F MARKETAXESS HOLDINGS Common 57060D108 171,819 -40,687 -19.15 32,214 3.18 0.1603
2017-02-14 2016-12-31 13F MARKETAXESS HOLDINGS Common 57060D108 212,506 72,110 51.36 31,221 34.30 0.1699
2016-11-14 2016-09-30 13F MARKETAXESS HOLDINGS Common 57060D108 140,396 66,654 90.39 23,248 116.83 0.1193
2016-08-15 2016-06-30 13F MARKETAXESS HOLDINGS Common 57060D108 73,742 73,742 10,722 0.0566
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.