Dividend yields are historically low these days. Here are three dividend stocks with mega yields as high as 13.4%. A sky-high dividend yieldAnnaly Capital Management (NLY 2.13%) currently clocks in with a 13.4% dividend yield. One reason Pfizer has such a high dividend yield is due to market worries about its impending "patent cliff." High risk, high potential payoutsAnnaly Capital Management, Western Midstream Partners, and Pfizer have mega yields, due in part to their higher risk profiles.