---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-248462"
form_type: "8-K"
ticker: "MKTX"
cik: "0001278021"
company_name: "MARKETAXESS HOLDINGS INC"
filed_at: "2023-10-02T23:59:59+00:00"
generated_at: "2026-06-10T06:17:30.887938+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# MarketAxess completes acquisition of Pragma, a quantitative trading technology firm

## Summary
- Acquisition of all outstanding ownership interests in Pragma Financial Systems LLC and Pragma LLC completed on October 2, 2023.
- Pragma specializes in algorithmic and analytical services for quantitative trading.
- CEO Chris Concannon expects to extend Pragma's algorithm platform to enhance AI-powered fixed-income trading.
- No financial terms of the deal were disclosed in the completion announcement.

## SEC filing metadata
- accession: 0001193125-23-248462
- form_type: 8-K
- ticker: MKTX
- cik: 0001278021
- company_name: MARKETAXESS HOLDINGS INC
- filed_at: 2023-10-02T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1278021/000119312523248462/0001193125-23-248462-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1278021/000119312523248462/d505885d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-248462
- JSON: https://secwatch.observer/filing/0001193125-23-248462.json
- Plain text: https://secwatch.observer/filing/0001193125-23-248462.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.