The disposition effect was one of the reasons I argued in September 2011 that Gold ( GLD ) was about to collapse. And one of the most persistent investor behaviors may topple the large-cap S&P 500 Index ( SPX ), which has been the market leader in 2014 relative to the small-cap Russell 2000 ( RUT ). Investable markets worldwide are suffering rom the Fall Epiphany of 2014 that growth and inflation expectations completely disagree with where we are in the cycle and what stocks have priced in.