The National Stock Exchange (NSE) on April 29, 2026, notified regarding the Co-location - Consolidated Circular.
The following has been stated:
• The circular provides a comprehensive framework for accessing and using NSE’s co-location facility, which allows members to place their trading infrastructure near exchange servers for faster execution.
• In brief, the circular consolidates all previous guidelines and covers rack allotment, connectivity, charges, risk controls, and operational rules. It explains how members can apply for racks through the ENIT system, with a structured waitlist mechanism and quota-based allocation. Different rack types (full, half, quarter, high-power density) are offered with specified power limits, pricing, and usage conditions.
• It also outlines strict compliance requirements, including adherence to exchange policies, penalties for misuse, and additional charges for non-utilization or excess power consumption. The circular introduces and regulates Co-location as a Service (CaaS), allowing vendors to provide managed trading infrastructure to smaller members, along with mandatory audits and reporting.
• Further, it details connectivity options (uplinks, leased lines, P2P links), data center access rules, emergency support, and security advisories like SOC monitoring and cyber risk controls. The exchange clarifies that co-location is provided on a best-effort basis without liability for failures, and members shall ensure their own business continuity and risk management systems.
[Notification no. - NSE/MSD/73958]
