Intermountain Stock Exchange

Named the Salt Lake Stock and Mining Exchange from its 1888 founding until 1972, the company was acquired by Commodity Exchange, Inc. (COMEX) in 1986, ceased operating and became dormant.

[3] The Exchange had its largest trading volumes during the 1920s, and particularly during the uranium boom of the 1950s.

[4][5] The companies listed on the Exchange tended to be speculative oil and mining penny stocks.

Despite renewed optimism by management,[7][8] trading volumes continued to dwindle until the Exchange was acquired in 1986 and all ISE-listed securities were delisted.

[9][10] The company was acquired by Commodity Exchange, Inc. (COMEX) in 1986, ceased operating and became dormant.