Ovicp, mREITs are in a class of their own and upward/downward movements normally are not in step with the major indexes. As a suggestion, compare against others such as NLY and CIM. Build a watch list on the NASDAQ site so you can click various tabs. (click "edit symbol list" and add your tickers) The NASDAQ site is almost real-time as it updates prices every 7 seconds. Charts are a bit sluggish and update at a slower rate.
Hang in there. The counter-market movement can be frustrating, but AGNC marches to it own drummer. Look for the dividend declaration sometime around Dec. 17th, and the ex-dividend date around Dec. 29th. These are the key dates for AGNC in the next 30 days.