Kohlberg Kravis Roberts' second quarter wasn't so bad. Its listed affiliate KPE reported an increase in net asset value to $3 billion, or $14.66 per unit, up from $12.82 at the end of 1Q. It also wrote up the value of a few investments, including Dollar General and HCA. Dollar General is now valued at almost two times cost, paving the way for what could be a public listing in the near future. KKR also reported that its AUM rose to $50.8 billion and its economic net income was $366.9 million for the quarter, an increase from $119.9 million a year ago.