Donaldson, Lufkin & Jenrette (DLJ)
2000
$11.5B
Why
Bought New York investment bank Donaldson, Lufkin & Jenrette, then majority-owned by AXA, for about $11.5 billion to lead in leveraged finance and high-yield bonds.
Impact
Made Credit Suisse First Boston a leader in high-yield underwriting and sponsor finance, while adding a large cost base at the peak of the dot-com boom.
Outcome
Solidified Credit Suisse's dominance in leveraged finance, but saddled the bank with cultural friction and volatile balance-sheet exposures.