bladerunner: You seem to being confusing CAT’s share price with the effect the US healthcare law will have on CAT’s profitability. In the short run, changes in CAT’s share price are strongly correlated with changes in the outlook for the global economy; in fact, it would be hard to find a single stock that’s a better proxy for such.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”