At Marketocracy, his 10STX portfolio is limited to cash (35%), short gold ( DZZ), long natural gas ( UNG), short the market ( TWM), and long a too big to fail banking disaster ( BAC).
The Powershares DB Gold Double Short ETN ( DZZ) is a bet against lower gold prices that may not be appropriate for all investors due to its risk. (See the Powershares Web site here).