History

Chicago Stock Exchange Historical Timeline.

1860's-1880's: The Early Years
1864-1882 Chicago brokers, traders and businessmen form exchanges with varying success.
1871 Great Fire of Chicago
March 21, 1882 First formal meeting is held to organize the Chicago Stock Exchange. Charles Henrotin elected chairman and president.
April 1882 A lease is taken out at 115 Dearborn Street for the Chicago Stock Exchange; 749 memberships have been sold.
1885 First skyscraper built
Late 1880s First case of dual listing occurs when a newly issued stock is quoted on both Chicago and New York Stock Exchanges.
1891 "The El" goes into operation
1893:
 
World's Columbian Exposition
1900's - 1920's: ...
1900 Flow of Chicago River reversed
July 31, 1914 Exchanges close through December 11th upon declaration of World War.
Oct. 13, 1915 Basis of quoting and trading in stocks changed from percent of par value to dollars.
April 26, 1920 CHX Stock Clearing Corporation established.
Oct. 29, 1929 Stock market "crash."
1929

Shedd Aquarium opens

1930's - 1940's: A Century of Progress
May 27, 1933 Securities Act of 1933 enacted, providing full disclosure to investors to prohibit fraud in connection with the sales of securities.
June 6, 1934 Securities Exchange Act of 1934 enacted, regulating securities trading and establishing the Securities & Exchange Commission (SEC).
1947 Chicago Transit Authority (CTA) formed.
1949
 

CHX merges with the exchanges of St. Louis, Cleveland and Minneapolis/St. Paul to form the Midwest Stock Exchange.

1950's - 1960's: Consolidation
Sept. 29, 1952 Trading hours change to 10 a.m. - 3:30 p.m. ET; no Saturdays.
1955 Mayor Richard J. Daley elected
1959 New Orleans Stock Exchange becomes part of the Midwest Stock Exchange.
Early 1960s
 

Midwest Stock Exchange Service Corporation is established to provide centralized accounting for member firms.

1970's: ...
1971 Sears Tower opened
May 11, 1973 Midwest Securities Trust Company (MSTC) is established to provide central depository for securities certificates and to electronically record transfers of stock ownership.
October 1, 1974 Trading hours are extended to 4 p.m., ET.
April 30, 1975 Fixed commission system is abolished
June 16, 1975 Full consolidated tape is introduced, allowing the reporting of all trades from the primary and regional exchanges to be combined onto one tape.
April 17, 1978

Launch of Intermarket Trading System (ITS), a system that allows orders to be sent from one exchange to another to ensure that a customer receives the best execution available.

1980's: Technological Advancement
1982 CHX launches the MAX system, becoming one of the first stock exchanges to provide fully automated order execution.
1983 Mayor Harold Washington elected.
May 1987
 

CHX implements program to trade Nasdaq NMS securities.

1990's: Rebirth of the CHX
1991 Harold Washington Library Center, largest public library in the world, opens.
July 8, 1993 The Midwest Stock Exchange changes its name back to the Chicago Stock Exchange, reflecting its roots and identity within the Chicago financial community.
June 7, 1995 Securities settlement shortened from five to three business days following trade date (T+3).
June 29, 1996 The CHX extends its trading hours and is now open thirty minutes after the primary market closes.
June 24, 1997 Exchanges begin trading stock in sixteenths.
October 2, 1997 Chicago Stock Exchange begins trading Exchange-Traded Funds (ETFs)
Oct. 27, 1997

The largest drop in the Dow Jones Industrial Average occurs - 554 points - sparking first-time use of circuit breaker rule, halting trading at 3:30 p.m. ET.

2000's: New Corporate Structure and Trading System
April 9, 2001 Decimal pricing of all stocks fully implemented.
February 8, 2005 SEC approves ownership structure change of the CHX from a not-for-profit, member owned company to a for-profit stockholder owned corporation.
June 9, 2005 SEC adopts Regulation NMS and amends the joint industry market data plans.
July 21, 2005 CHX implements the Electronic Book trading platform; the predecessor technology of the New Trading Model's Matching System.
February 2, 2006 CHX files proposed rules with the SEC to implement a new trading model.
July 31, 2006 The Exchange announces regulatory and shareholder approval of an investment in CHX by Bank of America Corporation; Bear Stearns; E*TRADE FINANCIAL Corporation; and Goldman, Sachs & Co.
February 1, 2007 CHX announces that it has completed the migration to the New Trading Model platform.