Shares of RXI Pharmaceuticals Corp. (OTC: RXII), a company engaged in the discovery, development and commercialization of therapies based on its RNAi platform, rallied in trading today. The stock ended the day 13.79% higher at $0.330 on above average volume of 9.30 million. RXII shares touched a 52-week high of $0.36 earlier today. The stock has gained 20% in the last three trading sessions.