Although most of the analysts think that their prices are almost certain to go to zero, investors are still trading common shares of Fannie Mae, Freddie Mac and American International Group Inc. by the billions.

The government owns the majority of all three, and they are losing huge sums of money. The Securities and Exchange Commission and other regulators don’t have the authority to end the trading of stocks in such companies that are technically alive, until the government takes them off life support.
