Boron Response:
You watch 100-200 stocks via Yahoo! Whoa...
Well, I use a varitey of my own programs as well as portfolio lists from my online brokers to manage a large part of the lists - setting upper and lower limits that trigger my attention. For technical analysis and the neural net, I get nightly data downloads. Its essentially dialdata, but its from another souce that charges me slightly more ($0.005 more) but its formatted so I can use it in a variety of programs.
I use ProTA on the Macintosh for some technical analysis and screening, although MetaStock is a good PC choice. I used that afew years ago, but found the Mac faster for the graphicng, displays and overlays of charts on one another, but its personal preference. I also have several custom programs that are both add-ins to Excel on both the Mac and PC and Visual Basic programs for specific sorts and screens. The net is my own, but there are some commercially available packages that do a good job as well. In fact, I am looking to get Ward Systems Group Neural Trader just to try out their stock market specific genetic algorithms. I've used their generic nets and shells at work for about 9 years and they are excellent.
If you don't want to invest in software, there are several places online that do a fair job of rudimentaly technical analysis and charting. However, to watch that many tickers, I can't imagine looking at all of them individually every day. I look at between 150 and 250 a day, but then I have a lot of support programs and some fast systems to do it in a fairly quick (2 hour) time frame. Plus, with multiple processors it allows me to look at a lot of things simultaneously. If you are going to track 100-200 stocks, you could put them into an excel spreadsheet and then run a variety of analysis from that (it would be fairly linear type of calculations though), and just about any stock data download service (PCquote, dial data, etc) will deliver it in a tab delimited format that you can plug into Excel.
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