Finding previous gaps

[robbo]

I am wanting to try a strategy based on overnight gaps in the market (be they up or down).
What is the best way to search through all 500 symbols available to find premarket gaps over say a 30 day period???

Is this something I need to find an EFS for, or is it possible within eSignal?
Same sort of functionality as the Premarket scanner, just applied over a 30 day period....
Thanks
Robb

[JayF]

There is no way that I know of that eSignal can perform this task. I would suggest looking through our list of compatible 3rd Party Software Providers to find one that best suits your needs. If anyone has any suggestions on software that can do this, please feel free to add your comments.