Surge in underwriting reflects companies moves to reprice and issue loans ahead of additional Fed rate hikes.

Surge in underwriting reflects companies moves to reprice and issue loans ahead of additional Fed rate hikes.

Just three types of buyers hold two-thirds of U.S. corporate bonds, Citi analyst says.

Just three types of buyers hold two-thirds of U.S. corporate bonds, Citi analyst says.

Companies sitting on huge piles of cash now compete with bond funds like Pimco and BlackRock to buy corporate debt.

Companies sitting on huge piles of cash now compete with bond funds like Pimco and BlackRock to buy corporate debt.

Crackdown could cut loan issuance by up to $80B in 2015.