He traded as a member of the Coffee Sugar Cocoa Exchange, the Pacific Stock Exchange, the cboe, liffe, and Eurex Exchanges during his trading career.
Powerful workstations process streams of financial data, flashing advice to the handhelds carried by Hull traders at the CBOE and the Chicago Board of Trade (CBOT).
Ritchie left the Chicago Board Options Exchange (CBOE) in 1976, and returned to trading futures at the Chicago Board of Trade (CBOT).
Following that, in 1998 Waller moved to Chicago and became a CBOE (Chicago Board Options Exchange) Options Market Maker and a partner in a trading firm LLC.
SIG is a specialist or DPM (designated primary market maker) in approximately 600 equity options and 45 index options on the CBOE, AMEX, PHLX, and ISE, including big name equities such as Google, Goldman Sachs, JP Morgan, GE, PepsiCo, and Microsoft and indices such as Nasdaq and Russell 2000 options.