Specifications

CQS Pillar Snapshot Service Specification

CQS Pillar Output Specification

CQS Pillar Input Specification

CTS Pillar Output Specification

CTS Pillar Input Specification

Common IP Multicast Distribution Network Specification

CTA Symbol File Specification

User Guides, Procedures, and FAQ

CTA Subscriber Procedure to Connect to Retransmission and Snapshot Services

CQS Snapshot FAQ

Retransmission and Snapshot User Guide

CTA Pillar SIP CERT Environment Guide

CTA-CQ SIP Emergency Procedures

Market-Wide Circuit Breaker Overview

CTA Round Lots Changes FAQ - Revised on 9/8/25

Forms

CERT CTA Pillar SIP Input and Retransmission Lines Request Form

SIAC CTA Pillar SIP Connection Request Form