Chance creates the illusion that investors can beat the stock market - Personal Investment Management > Investment Luck vers... Chance creates the illusion that investors can beat the stock market - Personal Investment Management > Investment Luck versus Investing Skill Articles - Financial Articles, “Market efficiency” makes it very difficult for individual investors to “beat the market.” Left to their own decisions, individual investors perform so poorly that on average their investment returns lag behind the returns that one would expect from a completely random stock selection process. The average professional trader does somewhat better than amateurs do and, in part, probably does so at the expense of the amateurs. On average, any actual performance advantage delivered by professionals is significantly less than the average fees they charge for their services. in Public bookmarkswith beatchanceillusioninvestmentinvestorsmarketpersonalstock