# Methodology

The methodology for **OG30** is provided by [GMCI](https://www.gmci.co/) and is based on their industry benchmark [GMCI 30 Index](https://www.gmci.co/indices/gmci-30).&#x20;

GMCI is the industry-leading crypto index methodology provider. GMCI indices are compliant with the European Benchmark Regulation (BMR).&#x20;