Simon Property (SPG) closed the most recent trading day at $155.81, moving +0.26% from the previous trading session. This move lagged the S&P 500's daily gain of 0.32%. Elsewhere, the Dow gained 0.68%, while the tech-heavy Nasdaq added 0.2%.Coming into today, shares of the shopping mall real estate investment trust had gained 3.41% in the past month. In that same time, the Finance sector gained 4.23%, while the S&P 500 gained 5.11%.Analysts and investors alike will be keeping a close eye on the performance ...