It's been a few weeks, but earnings season is extremely busy. I've got something I want to share with all our readers though. I've been a critic of the absurd premium achieved by AGNC Investment (AGNC) over the last few years. While this example uses AGNC, it is highly relevant to the sector. One of the things investors should regularly do when evaluating prices is look at the ratios over time. If you have no idea where valuations have been in the past, it would be extremely difficult to evaluate current va ...