ETRACS, the exchange traded notes (ETN) issuing arm of Swiss banking major UBS AG, has launched a leveraged S&P tracking ETN that resets its holdings every month. The ETRACS Monthly Reset 2X Leveraged S&P 500 Total Return ETN (SPLX) will reflect the monthly compounded 2X, or 200 percent leveraged performance of the S&P 500 Total Return Index. The S&P 500 …