 After another temporary relocation west on South Water Street in 1860, the first permanent home was established within the Chamber of Commerce Building on the corner of LaSalle and Washington Streets in 1865.In 1871, the Great Chicago Fire destroyed this building.The exchange temporarily reopened two weeks after the fire in a wooden building known as "the Wigwam" at the intersection of Washington and Market Streets, before reclaiming its home in a new building constructed at the Chamber of Commerce site one year later.