Auto-X™
Automated execution for fixed income trading
MarketAxess offers three automated execution solutions: Auto‑X RFQ for automating high‑urgency requests, Auto-X Responder for systematic liquidity provision, and Adaptive Auto‑X, an algorithmic execution tool that intelligently routes orders across multiple trading protocols.
Automation on MarketAxess isn’t a black box. You define the rules. We apply data, liquidity, and execution logic across RFQ, order book, and all‑to‑all trading so routine trades take care of themselves, and traders stay focused on value‑add decisions.
Auto-X RFQ
Automatically take liquidity from existing market opportunities.
Instant liquidity access
Handles routine flow
Speed and convenience
Auto-X Responder
Automatically provide liquidity to incoming opportunities throughout the day.
Always-on liquidity
Passive market participation
Prioritize spread capture
Compare these two tools
View Case comparisonAdaptive Auto-X
Our algorithmic trade execution tool applies data-driven analytics to streamline workflows and execute across multiple protocols. Adaptive-Auto-X uses machine learning-based data signals to determine the most efficient execution pathway for your orders. With three strategies to choose from, Adaptive Auto-X will execute tailored to your specific trading needs.
Visit the Adaptive Auto-X Hub for additional content, explainers and videos.
Take strategy
Highest urgency
Liquidity taker
Seek strategy
Flexible urgency
Make and take liquidity
Provide strategy
Low urgency
Liquidity maker
in trade count since inception*
in trade volume since inception*
firms since inception*
Built for traders. Evolving since 2018.
MarketAxess introduced automated execution in fixed income in 2018 with a simple goal: reduce friction in the RFQ process without compromising execution quality. Since then, automation on the platform has evolved from RFQ automation to systematic liquidity provision and, most recently, adaptive algorithmic execution that can operate across protocols. Each step has been driven by trader behavior, market structure changes, and the increasing need to do more with fewer clicks.
2018
Auto‑X RFQ launches to automate high‑urgency RFQs
2020
Auto‑Responder introduced to support systematic liquidity provision
2023
Launched Adaptive Auto-X, the first algorithmic trade execution tool for credit
2024
Surpassed 1T in Auto-X trade volume
2026
Surpassed 2T in Auto-X trade volume
Explore the latest from our team of Automation Experts
Visit our knowledge centerAutomation traders rely on day after day
Automation on MarketAxess is used by hundreds of active firms and represents a growing share of trading activity on the platform. Traders adopt it incrementally, starting with simple workflows and expanding as confidence and comfort grow.
The common thread:
Fewer clicks
More consistency
More time spent on trades that matter
Ready to make every second of your day count with Auto-X?
Request a demo*Since inception as of May 2026.