AIG (AIG +2.2%) shares jump after reporting Q4 earnings, trading briefly above the $29 price the...

AIG (AIG +2.2%) shares jump after reporting Q4 earnings, trading briefly above the $29 price the U.S. Treasury got when it sold a portion of its AIG holdings in a “re-IPO" in May 2011. If AIG shares can stay there, Treasury likely will attempt a sale of another chunk of its 77% stake. But the price point may prove an impediment to further appreciation in the shares, Bernstein says.