A VERY simplified to this could be
You can do this from Yahoo. Goto their website
http://finance.yahoo.com/q/cq?d=v1&s=ibm%2ct%2cmsft
right click somewhere in the tableexport to microsoft excel

To do properly you would probably need help to completely automate this. I
have a free file at Yahoo xttraders group.
--
Don Guillett
SalesAid Software

"JJMA" wrote in message
...
I have downloaded prices of several common stocks that I own. These stocks
are held in several portfolios. I vcan I update the prices of the stock
that
are held in each portfolio.