Natural gas prices, long stuck at about $3.70 per mmbtu, have shot up to over $6 this past week due to the cold weather in the US. Momentum traders and hot money are also jumping into this commodity trade, pushing prices higher at the commodity exchanges. But there is an opportunity for the average investor, like you and me, to make a very profitable trade using ETFs in the stock exchange to capitalize on a reversion of nat gas prices back to $4 or so in the weeks ahead.