Bernstein downgrades AIG to Underperform following the mammoth runup in its stock price (AIG...

|By:, SA News Editor

Bernstein downgrades AIG to Underperform following the mammoth runup in its stock price (AIG -7.9% premarket). Firm says current prices allow very little chance for uncertainty, and fail to incorporate considerable downside risk potential - while it continues to attach a 50% probability to the possibility shares are worthless.