The New York firm reported second-quarter net income of $2.05 a share, compared with $1.24 a share in the year-earlier quarter. Shares outstanding rose 11% to 630.4 million.
Distributable earnings -- cash that can be distributed to holders, The Wall Street Journal reported -- were $1.05 a share. That topped analysts' consensus expectations of 87 cents, according to FactSet.
Revenue of $3.13 billion compared with $1.33 billion a year earlier. The latest figure was ahead of analysts' expectations of $1.22 billion.
At last check KKR shares were 0.7% higher at $64. On Tuesday they've touched a 52-week high $65.73. That's double the 52-week low $32.73, set in late September.
"This was an exceptional quarter for KKR," with record organic inflows from investors of $59 billion, Co-Chief Executives Henry Kravis and George Roberts said in a statement.
The firm raised about $73 billion in the first half, putting it ahead of its stated goal of collecting $100 billion in funds by 2022.
KKR and Clayton Dubilier & Rice said they would pay $16 a share cash for Cloudera, Palo Alto, Calif. They expect the deal to close in the second half.
Also in June, Contango Oil & Gas agreed to a merger with KKR's Independence Energy division, which invests in oil and gas.
Under the terms, Independence will merge into a new parent, which will become publicly traded at closing. Contango will become a subsidiary of that new parent.