----- Original Message ----- 
      
      
      Sent: Thursday, December 01, 2005 
      4:31 AM
      Subject: [amibroker] RT Data - only 
      last bar needed
      
 
      Hi guys,
       
      In order to trade a system, I need to intraday scan some 500 
      stocks for their LAST PRICE, say once in a minute. 
      I don't need to see any charts or load large amounts of intraday data 
      - I only need to know all stocks' LAST PRICE once in a minute or 
two.
       
      Given these requirements, will it be sufficient to use the IB 
      datafeed, or must I use eSignal basic for such a task?
      I know IB can support quote retreival of up to 100 concurrent 
      symbols at a time. Can these symbols be changed *PROGRAMATICALLY* from AB, 
      say every 15 seconds?
       
      Thanks for your time,
      Short.