nope the data is real time now.
here is a post on the official google blog about it back in june. realtime quotes on nasdaq and nyse.
http://googleblog.blogspot.com/2008/...e-finance.html
yahoo finance has realtime quotes as well. for example here is the page for the realtime quote for google.
http://finance.yahoo.com/q/ecn?s=goog
free realtime quotes are available, but for some reason no one wants to use them.