hey craig.... first studying on your And as new companies are added to the market the data is automatically added to the above folders. part.... your setup must be different than mine.... if a new security is listed i must manually go in and add it to the download data folders.... if your data supplier is doing it for you thats neat.... so what i'm about to say is conditioned on that fact..... don't create a list to run explorations on.... doing so assures you must add new securities to it as you mentioned..... rather try this, when you are about to run the exploration and are ready to add securities , just highlight your "A through to Z" folder.... don't open it just click once to highlight it.... now you see the little down arrow beside the open tab, click it.... it should open up to 2 options.... choose "open folder contents"..... that will load every stock in the a to z folder and sub folders..... so if your data suppplier is keeping that folder current it will scan all ..... holler back if ya don't follow and i'll post it better.....h