Understanding eSignal real-time data capabilities

eSignal supports both real-time and EOD data. 

Yes, it’s possible to save intraday data.  However, if you lose or stop your connection for any time, the chart will just start plotting again from the reconnect time.  The missing data stays missing.  If you close and reopen the chart, the information will fill in. 

BTW, Reuter’s has broad market securities that are only available from them, for just a little over a hundred bucks a year and worth it.

MetaStock comes with the stocks divided up in folders by industry, S&P 500, NAS 100, etc.  You can change, add, and/or delete these directories.  For EOD data, there is a historical data CD that comes with MetaStock that provides info current to about 2 months.  When online, the data provider uses the DataOnDemand folder.  You are limited to 6,000 securities per folder.  There is a selection under tools to update the symbol base.  You can use it anytime to add or subtract symbols; there’s nothing to it.