Updated at 1:30 p.m. PDT with closing information.
Shares of Yahoo and Microsoft gave up ground Monday, following the passing of Microsoft's closely watched Saturday deadline without the parties hammering out a merger deal.
Shares of Yahoo closed at $26.43 Monday, off 1.38 percent from its close of $26.80 on Friday. Investors were initially feeling a little more bullish at the start of the session, pushing the shares up as high as $27.09.
Throughout the day, Yahoo's stock tried to rally, but toward the end of the trading day began to slump. … Read more