Only 10% of all new traders ever make into their 2nd year as net profitable traders. These numbers do not change. The normal distribution curve over a large sample pool of traders has not deviated in 100 years and it will not deviate over the next 100 years. Anyone implying differently is trying to sell something. It does not matter what product or what strategy they trade. They could be trading Crude, stock pairs, or stat arbs, it does not matter. The normal distribution curve is the same.