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Why does a ETN that is supposed to track Crude Oil like UWTI show constant decline every year? And am I an idiot for investing in it?
After looking at both S&P GSCI Crude Oil Index Excess Return (INDEXSP:SPGSCLP) and CS VS 3x LC ETN NYSEARCA: UWTI they seem to track well (using Google Finance).   I'm not seeing where your statement this ETN loses whether oil is gaining or not holds true.   Both have posted a year-over-year loss. In the past year the Crude Oil index has fallen from a high of 494 on October 6, 2014 to a low of 213 as of today October 5th, 2015.  So of course the UWTI will lose as well. Please also notice that that, as stated in the prospectus for UWTI: The ETNs are intended to be daily trading tools for sophisticated   investors to manage daily trading risks. They are designed t o achieve   their stated investment objectives on a daily basis, but their   performance over different periods of time can differ significantly fr   om their stated daily objectives. The ETNs are riskier than securities   that have intermediate or long-term investment objectives, and may not   be sui table for investors who plan to hold them for a period other   than one day. You might want to look into investing in an ETF for long term investment goals and objectives.  Oil ETF List