Howard Hughes Holdings (HHH 8.85%) stock is soaring on Monday, with shares up by 11% at 10 a.m. ET on a day when the S&P 500 (^GSPC -0.61%) and Nasdaq Composite (^IXIC -1.35%) are firmly in the red.Howard Hughes is a developer of master-planned communities, or MPCs. It is the company behind the massive Woodlands community in the Houston area, as well as the Summerlin community just outside of Las Vegas, just to name a couple examples. Management has referred to the company as a real-life version of the popu ...