In the wake of financial trouble at Banco Espirito Santo, some investors are realizing they don't know how much risk they took on.

In the wake of financial trouble at Banco Espirito Santo, some investors are realizing they don't know how much risk they took on.

As corporate bond trading volumes wane, some investors are using credit-default swaps to bet on whether bonds will rise or fall in value.

As corporate bond trading volumes wane, some investors are using credit-default swaps to bet on whether bonds will rise or fall in value.

SEC is currently 'very focused' on improving visibility in the bond market.

SEC is currently 'very focused' on improving visibility in the bond market.

Analysts worry about what happens when the gift of easy money goes away for good.

Analysts worry about what happens when the gift of easy money goes away for good.