Signaturefd, Llc reports 12.07% decrease in ownership of MKTX / MarketAxess Holdings Inc.

MarketAxess Holdings Inc.

US ˙ NasdaqGS ˙ US57060D1081

Security	MKTX / MarketAxess Holdings Inc.
Institution	Signaturefd, Llc
Latest Disclosed Ownership	102 shares
Latest Disclosed Value	$ 16,828

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 102 shares of MarketAxess Holdings Inc. (US:MKTX) valued at $16,828 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 116 shares of MarketAxess Holdings Inc.. This represents a change in shares of -12.07% during the quarter. The current value of the position is $11,927 USD.

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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-04-07	2026-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	102	-14	-12.07	17	-23.81	0.0003
2026-01-20	2025-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	116	-199	-63.17	21	-61.11	0.0003
2025-10-21	2025-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	315	-231	-42.31	55	-55.37	0.0009
2025-07-16	2025-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	546	213	63.96	122	68.06	0.0021
2025-05-02	2025-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	333	211	172.95	72	166.67	0.0014
2025-02-10	2024-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	122	14	12.96	28	0.00	0.0005
2024-10-21	2024-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	108	0	0.00	28	28.57	0.0005
2024-07-29	2024-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	108	-50	-31.65	22	-38.24	0.0004
2024-05-03	2024-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	158	-42	-21.00	35	-41.38	0.0007
2024-02-01	2023-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	200	69	52.67	59	114.81	0.0014
2023-11-03	2023-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	131	-117	-47.18	28	-57.81	0.0007
2023-08-01	2023-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	248	-50	-16.78	65	-44.83	0.0017
2023-04-28	2023-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	298	-3	-1.00	117	39.76	0.0032
2023-01-30	2022-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	301	91	43.33	84	76.60	0.0025
2022-11-08	2022-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	210	-313	-59.85	47	-64.93	0.0016
2022-08-10	2022-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	523	130	33.08	134	0.00	0.0046
2022-05-02	2022-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	393	90	29.70	134	7.20	0.0040
2022-01-25	2021-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	303	27	9.78	125	7.76	0.0038
2021-10-28	2021-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	276	28	11.29	116	0.87	0.0040
2021-07-26	2021-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	248	44	21.57	115	12.75	0.0046
2021-04-30	2021-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	204	25	13.97	102	0.00	0.0045
2021-02-11	2020-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	179	7	4.07	102	22.89	0.0048
2020-11-03	2020-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	172	4	2.38	83	-1.19	0.0044
2020-07-30	2020-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	168	31	22.63	84	82.61	0.0051
2020-04-23	2020-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	137	11	8.73	46	-4.17	0.0040
2020-02-05	2019-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	126	21	20.00	48	41.18	0.0035
2019-10-16	2019-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	105	0	0.00	34	0.00	0.0028
2019-07-31	2019-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	105	17	19.32	34	54.55	0.0029
2019-05-09	2019-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	88	26	41.94	22	69.23	0.0019
2019-02-13	2018-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	62	20	47.62	13	85.71	0.0012
2018-11-14	2018-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	42	-12	-22.22	7	-36.36	0.0007
2018-08-14	2018-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	54	0	0.00	11	-8.33	0.0012
2018-05-08	2018-03-31	13F	MARKETAXESS HLDGS	COM	57060D108	54	54		12		0.0014
2017-02-14	2016-12-31	13F	MARKETAXESS HLDGS	COM	57060D108	0	-54	-100.00	0	-100.00
2016-11-14	2016-09-30	13F	MARKETAXESS HLDGS	COM	57060D108	54	42	350.00	9	350.00	0.0013
2016-07-29	2016-06-30	13F	MARKETAXESS HLDGS	COM	57060D108	12	12		2		0.0003

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.