Almost two years ago, I recommended holding the preferred stock of Tsakos Energy Navigation (NYSE: TEN.PR.E ) ( TEN ) for its attractive dividend, which was yielding 9.2% back then and had a wide margin of safety. I reiterated my hold rating inI am a chemical engineer with a MS in Food Technology and Economics, and a MENSA member. I am the author of the book "Investing in Stocks and Bonds: The Early Retirement Project" (2024):I am also the author of the book "Mental Math: How to perform math calculations in ...