Phase-15 - Stock Market Circularshttps://rhnvrm.github.io/stock-market-circulars/tags/phase-15/Regulatory circulars from NSE, BSE, and SEBI with AI-powered summariesHugo -- gohugo.ioen-usWed, 08 Apr 2026 00:00:00 +0000NSE Colocation Facility Expansion - Phase 15 Effective April 08, 2026https://rhnvrm.github.io/stock-market-circulars/circulars/nse/2026/nse-2026-04-08-08c6b352f9953370-colocation-expansion-of-colocation-capacity-phase-15/Wed, 08 Apr 2026 00:00:00 +0530https://rhnvrm.github.io/stock-market-circulars/circulars/nse/2026/nse-2026-04-08-08c6b352f9953370-colocation-expansion-of-colocation-capacity-phase-15/NSE announces expansion of its colocation facility with the introduction of Phase 15, effective April 08, 2026, allowing members and CaaS vendors to apply for rack allotment via ENIT from 6:30 PM on the same date.nsemarket-operationsmediummediummedium08c6b352f9953370https://nsearchives.nseindia.com/content/circulars/MSD73659.pdfcolocationinfrastructurecapacity-expansioncaasrack-allotmentenitmember-servicesphase-15Summary

NSE’s Member Service Department has announced the expansion of its colocation facility through the introduction of Phase 15, effective April 08, 2026. This follows earlier capacity expansions referenced in circulars NSE/MSD/67756 (April 29, 2025) and NSE/MSD/68052 (May 19, 2025). Members and CaaS vendors can begin submitting rack allotment requests via the ENIT portal from 6:30 PM on April 08, 2026.

Key Points

  • Phase 15 of NSE’s colocation facility goes live on April 08, 2026
  • Rack allotment requests must be submitted via ENIT under path: Colocation/CaaS > Rack Allotment
  • Allotment confirmations will be visible in ENIT under Colocation/CaaS > Report (Remarks)
  • New racks available for application on ENIT from 6:30 PM on April 08, 2026
  • Member portal users must log in fresh after 6:30 PM on April 08, 2026 to access the rack allotment module
  • Exchange will continue reviewing and augmenting rack capacity based on market demand
  • Contact: Bharat Gandhi, Chief Manager; Toll Free: 1800-266-0050 (Option 1); Email: msm@nse.co.in

Regulatory Changes

No new regulatory changes. This circular continues the existing colocation capacity expansion program, building on prior phases announced in circulars NSE/MSD/67756 and NSE/MSD/68052.

Compliance Requirements

  • Members and CaaS vendors seeking rack space must submit rack allotment requests through the existing ENIT process
  • No new compliance obligations are introduced
  • Colo participants are reminded to maintain their own BCP/DR systems, as NSE’s colocation facility does not have a separate BCP/DR or DR site
  • Participants should review all potential risks and their business impact in the context of the technology-intensive securities market environment

Important Dates

  • April 08, 2026: Phase 15 colocation capacity expansion goes live
  • April 08, 2026, 6:30 PM: New racks available for rack allotment applications on ENIT; fresh login required by member portal users

Impact Assessment

This expansion primarily affects algorithmic trading firms, high-frequency traders, and CaaS vendors who rely on proximity hosting at NSE’s colocation facility for low-latency market access. The addition of Phase 15 racks increases available infrastructure, reducing capacity constraints for existing and new applicants. The broader market is unaffected. Participants should note that colocation is provided on a best-effort basis with no liability for power, connectivity, or system failures, and no separate disaster recovery facility is available.

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