First we read that Stanley Druckenmiller is shutting down his hedge fund, worn down by stress. In the last three years his Duquesne Capital Management couldn't match the 30% annual returns it had seen since 1986. Though it has never had a losing year, it is down 5% this year.
And then we read that investors have fallen out of love with the quants and that the combined assets of quant funds specializing in U.S. stocks have fallen 61%. Money is going to funds managed "by human beings, rather than computers." Presumably those same kinds of human beings who can be worn down by stress.