Some IPOs take off right out of the gate, while others take their time. Empire State Realty Trust (ESRT) is definitely in the latter camp. The real estate investment trust, which owns and manages the Empire State Building, as well as other properties in and around New York City, edged up 16 cents to 16.51 in super-light trade. The REIT came public Oct. 2 at 13 a share.