1.   A jump in gold prices usually brings in excited investors who bid up the stocks.

2.   Jumping in after overly excited investors have already bid up a stock so high makes no sense, Womack said.

3.   His claim has baffled scientists, excited investors and brought the inventor death threats from people trying to steal his formula.

4.   His formula has baffled scientists, excited investors and brought himself death threats from people trying to steal his formula.