Share: Comments Print July 18, 2006 at 4:49 PM Yahoo! flickers on Wall Street Posted by Brier Dudley A weak quarterly report pushed YHOO down 14 percent, to $27.80, in extended trading today. The company said its profit was hurt by stock option expenses, and its new ad platform will be delayed until the fourth quarter. I wonder how much Yahoo! is suffering from the loss of Microsoft business. Microsoft finally launched its own search ad platform in May, ending Yahoo!-powered advertising on its U.S. site. Comments | More in | Topics: Yahoo!