American Captial Agency (AGNC -0.83%) made big headlines last week when it disclosed it had been buying shares of other public mREITs. One company American Capital Agency may have been buying was CYS Investments (NYSE: CYS), another agency mREIT set to report earnings. In this segment of The Motley Fool's financials-focused show, Where the Money Is, banking analysts Matt Koppenheffer and David Hanson look ahead to the rest of the week to Markel's (MKL -0.67%) earnings announcement and other big events.