Open Platform: A Floor Trader's Reflections on Data Then and Now--When the Market Had a Soul

John Sussex describes the disruptive impact of electronic trading platforms and digital market data on floor trading.


A walk onto the trading floor of the Chicago Board of Trade in 1981 changed my life. I'd never seen anything like it. I was 23 years old, and the avalanche of noise and color that hit me that day as I witnessed thousands of traders do battle in the pits is something that I'll never forget. The sheer size of some of the traders in the baying Chicago pits was a sight to behold. Some were former athletes who hadn't made the cut in their chosen sports. Instead, these guys were using their brawn to

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