RSID — Reference Security Identifier

Standardised 7-character identifiers for securities without a SEDOL.

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Key Benefits

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Reduce Reconciliation Errors

Fragmented security identifier conventions create operational inefficiencies, reconciliation challenges, pricing issues and increased risk throughout trade processing and settlement

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Legacy System Issues

Many securities lack identifiers that are compatible with legacy operational systems, including platforms constrained to fixed-length formats such as 7-character identifiers. This often results in manual exceptions or the use of internal reference codes

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The RSID Solution

A lightweight, fixed-length reference identifier designed to coexist with established standards while providing a consistent reference where coverage or format gaps exist.

How It Works

  • RSID Format: 7-character designed for compatibility with legacy platforms
  • No Embedded Meaning: RSIDs do not carry semantic content
  • Check Digit: Built-in validation to help prevent errors in manual entry and data transmission.
  • Standard Compatibility: Designed to operate alongside ISINs, CUSIPs, SEDOLs, FIGI, and other existing identifier systems
  • Extensive Coverage: Designed to assign identifiers to securities where no SEDOL exists, with flexibility to expand across markets and asset classes

Sample Dataset / Full Database Access

Sample Dataset: Quick preview of RSIDs (no ISINs/CUSIPs shown)

Full Database: Access granted post-signup for internal operational use only

Note: Users may submit their own ISINs to map to RSIDs. Downloads contain RSID + status only, no ISINs provided.

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