Umbra, Latin for shadow, is an automated data updater which works quietly in the background with Premium Data from Norgate Investor Services. Premium Data is known for its data integrity and is highly recommended as an end of day data provider for Amibroker software. In order to avoid false signals, the database needs to be updated after Premium Data's servers are updated for the day. Umbra, in conjunction with Window's built in Task Scheduler, updates the data at the appropriate time. One less task which needs attention!