The previous post is valid. Other examples, corporate actions (up to date and historic), identifiers for instruments as they appear on particular secondary mark

The previous post is valid. Other examples, corporate actions (up to date and historic), identifiers for instruments as they appear on particular secondary markets (eg, what is the name if this security on aquis europe), current and historic close prices (for any venue you could name), otc/si trade reports. The broad spread and generally high quality of data is what drives the platform.