And in time the thief will have to return to the mountain if he hopes to go on trading.
The latest batch of economic data had little impact on trading.
But those figures were published early in the day, and seemed to have little effect on trading.
That day shares declined 5.19 percent on heavy trading to close at $36.50 a share.
They closed at $91.25, up $2.375, on trading of 10.1 million shares.
The company's stock fell 31.3 cents to close at $58.188 on trading of 7,145,400 shares.
Analysts, however, said the impact on trading should be minimal.
The price movement that followed the reports came on extremely thin trading.
A week ago, the stock moved up sharply, then fell back to $14 on heavy trading.
Talks on "trading" of emissions are expected to take place next November.
