Hi Ray, I did not notice what language you were developing in and you seem to be only looking at commercial packages; however, if you are using C#, you might check out ZedGraph http://zedgraph.org/wiki/index.php?title=Main_Page I am a professional software developer and am developing my own trading platform for trading Forex because there is not a platform that does the things that I want to do. I have decide to roll my own charting lib but I am going to use a lot of the ideas from ZedGraph - it's really a nice lib. David
I am building an extensible charting package from scratch which takes no more than 5% CPU even if you run 25 real-time tick charts with heavily traded stocks. If you want I can license the source code so that we can share the development costs. Please send me an email at precisionsoft@comcast.net if you are interested