Why is there no longer a 'sign out' function on Yahoo!7 finance?
There is a drop-down menu next to your name on the top-left side of the page. It should say something like 'Hi, [your name]' with a drop-down arrow. Click on the arrow and there is a 'Sign Out' option down the bottom of the list. I hope this helps!
P.S. I don't work for yahoo.. I just happened to notice your comment.