This document discusses alternative data in capital markets. It provides an overview of alternative data sources like social media, satellite imagery, and location data. It also describes how firms are using alternative data to enhance traditional analysis and develop new investment strategies. The document notes that most alternative data users have seen returns from using this data. However, accessing and analyzing large alternative data sets remains a challenge. It promotes the use of data platforms and visual analytics to more effectively ingest, store, and operationalize alternative data.