AGNC Investments (AGNC 0.31%) is an alluring dividend stock. The mortgage-focused real estate investment trust (REIT) offers an enticing 15% dividend yield. That's ten times the S&P 500's dividend yield. As tempting as that payout might seem, AGNC Investments might not be the right dividend stock for everyone. Here are some factors to consider when deciding whether it's right for you.How AGNC makes money to pay dividendsAGNC Investments is a mortgage REIT focused on investing in residential mortgage-backed ...