Finally, Real-Time Stock Quotes at Yahoo-- For Free
alleyinsider.com
alleyinsider.com
http://billing.finance.yahoo.com/realtime_quotes/signup?.src...
Here is what Google returned today that it had not before: http://ycorpblog.com/2008/05/28/real-time-stock-quotes-on-th...
There is also Level II quotes, with wich you can see trades going on in real time, but these are even more expensive, and brokers will only give them to active trader.
The whole system, is rigged in such a way, that if you are a casual investor, you have a lot less information on what's going on, then people that have these tools available. What Yahoo is doing, is actually pretty game changing, and makes a comodity something that was only available at a premium.
Have to be pretty darn casual. Sign up for ameritrade and you have real time quotes automatically. (I forget the minimum account, but it's probably a thousand or two.) I had a good month of 30+ trades a few years ago and they gave me level II quotes for ever after.
If the data isn't available, do you think it is possible to collect market-wide level II quotes from a commercial source?
Find me a business where you have a natural monopoly that isn't regulated, and you don't milk it for all it's worth. They're just too lucrative not to profit from it, and frankly I'm surprised that even now Yahoo has made it free.