Is it the right time to buy this REIT for its 15% yield? AGNC Investment (AGNC -0.21%), a real estate investment trust (REIT) that invests in residential mortgagebacked securities, is a divisive investment for dividend investors. The bulls love its massive forward yield of 15%, while the bears argue that it's a high-yield trap that has generated dismal gains for its income-oriented investors. Let's review AGNC's business model and see if it's smarter to buy, sell, or hold its stock. How does AGNC make money ...