TPG Mortgage Investment Trust ( MITT ), previously known as AG Mortgage Investment Trust, has been one of the best-performing mREITs over the past year, with its ~43% gain well above the ~14% total return for the VanEck MortgageI ventured into investing in high school in 2011, mainly in REITs, preferred stocks, and high-yield bonds, starting a fascination with markets and the economy that has not faded despite the years. More recently I have been combining long stock positions with covered calls and cash se ...