Tick History 2.0 consumes its content from Thomson Reuters Elektron Real Time, our strategic real-time data network, and benefits from the content enhancements in Elektron vs our old IDN network which the v1 system consumed from, including:

• Improved market depth (more levels) in Market by Price and Market by Order for an increasing number of venues
• Thomson Reuters-recorded nanosecond timestamps and all exchange-supplied timestamps carried on Elektron Real Time
• Sequence numbers available in Elektron Real Time
• Improved Market coverage (including Aequitas, NSEI Tick byTick (NSEITbT) and OPRA Regionals)
• Standardized / logical field usage across global asset classes across all services
• Time bars – trade types are filtered to provide accurate time bars

This question was first asked in a webinar (31^st of May) please see here: Introduction to Tick History REST API