I'm looking for help on selecting a broker. I had used Terra Nova and was not happy. Now I'm using IB. This has been working fine for me...good execution with great commission. Unfortunately, the functionality is limited. I can't use filter and scanner the way I wanted. What I'm looking for is a way to track US indexes throughout the trading day, see which are gaining and declining. Then look at individual stocks to see how much are gaining/declining. I'll opt for a cheap alternative service out there instead of a trading platform. This could basic knowledge to most, but I appreciate if you can help.