IRIS+ Core Metrics Sets

Global Impact Investing Network, May 2019

Credible, comparable impact data are needed to inform impact investment decisions. Effective measurement and management of impact data is essential if investors are to know whether they are actually achieving the impact they seek.

IRIS+ Core Metrics Sets are shortlists of key impact performance indicators—built on standard IRIS metrics and backed by evidence and best practice—that impact investors can use to assess the effects of their investments.

The IRIS+ Core Metrics Sets document describes the main elements of the IRIS+ Core Metrics Sets: the questions they address, shortlists of key indicators, clear step-by-step calculation instructions, and the key insights derived from each indicator.

This document belongs to the Fundamentals guidance series of IRIS+ which offer an overview of the core concepts and rules underpinning IRIS+-based impact measurement and management.