historical-data

Downloading and Retaining Data

Investor/RT's automatic backfill is designed to keep daily and intra-day historical data up to date automatically without user involvement. Generally speaking, if you track fewer than 100 symbols, all historical data management should simply be done for you; there should not be a need to manually perform data downloading operations. Users who track many hundreds or thousands of symbols are exceptional cases where a higher degree of user involvement is required to keep your historical data current.

Backfill Automation

Investor/RT has long featured automated backfill at startup, designed to backfill historical data since the date/time that the data feed was last stopped.  Starting with version 11.2, backfill is now automatic and has been enhanced to fill in any historical data per symbol for all trading that has occurred since the last trade recorded in the local database. In prior releases, Setup: Preferences: Backfill allowed user control on whether to auto backill or not and whether to auto backfill all intra-day symbols or just those open in charts.

DTN Market Access Historical Service

Specially designed for Investor/RT users relying on a brokerage feed (Rithmic, CQG,..) as primary real time data source, DTN Market Access is a historical data backfill service marketed by Linn Software.