For GLAD investors -- unconfirmed reports at Fidelity and SA say that ARR will announce earnings after market close May 1 (tomorrow). Consider this a definite maybe.
Fidelity - May 1 Q1 earnings After Market (Unconfirmed)
TDA - May 8 Q1 2013 ARMOUR Residential REIT Inc Earnings Release
ARR ex - May 13
Fidelity website says ARR earnings expected 5/8/13. So anytime maybe.