Yahoo CEO facing possible rebellion after spurning Microsoft

Now he may only have a few months to convince Wall Street that his rebuff of Microsoft's takeover bid was a smart move and if he can't, analysts won't be surprised if Yang is either replaced as CEO or forced to consider accepting a lower offer if Microsoft comes knocking at his door again.

"This squarely puts the pressure on Jerry Yang to deliver results and shareholder value," Standard & Poor's equity analyst Scott Kessler said. "You are going to see a lot of shareholders just throwing in the towel because they are going to realize it's going to take awhile for the stock to get back to where it was Friday."

The backlash is expected to begin Monday when Kessler and other analysts believe Yahoo's stock price will surrender most, if not all, of its 50 percent gain since Microsoft made its initial offer Jan. 31. The anticipated sell-off would leave Yahoo's market value hovering around $30 billion.

Meanwhile, most analysts believe Microsoft's stock price will rise Monday. The shares had declined 10 percent to $29.24 since the bid, reflecting concerns that the proposed marriage would turn into a complicated mess that would enable Google Inc. to grow even stronger.

Yahoo shares finished last week at $28.67, slightly less than the $29.40 per share that Microsoft was offering before Chief Executive Steve Ballmer agreed to raise the offer to $33 per share in a last-ditch effort to get a deal done.

Disillusioned shareholders are bound to question whether the rejection of Microsoft's sweetened offer was driven more by emotion and ego than sound business sense.

"Clearly there's frustration," said Darren Chervitz, co-manager of the Jacob Internet Fund, which owns Yahoo stock. "I am not even sure if Yahoo cares about its shareholders because they didn't show much regard for shareholders' best interests in this process."

Despite such negative sentiment, Yahoo shares are unlikely to immediately fall back to their $19.18 pre-bid price, partly because some investors may still be holding out hope that the software maker will renew its takeover attempt if Yahoo continues to struggle.

Accompanied by fellow Yahoo co-founder David Filo, Yang flew to Seattle on Saturday to inform Ballmer that the company wouldn't sell for less than $37 per share a price that Yahoo's stock hasn't reached since January 2006.