The biggest banks proved their ability to generate revenue through tough times, but they said little that would indicate the economy is poised for a sharp recovery. Read More WSJ.com: Markets...

The positive trade-off between risk and expected return is the most fundamental concept in financial economics. Most investors are risk-averse. In order to hold higher-risk securities, they demand higher compensation in the form of higher expected returns. And risk-averse investors are more sensitive to downside...