This year, exasperation over the predominantly electronic mechanics of trading stocks, in which hyper-fast computer algorithms maneuver against one another for fractions of pennies collected over microseconds, boiled over. The level of disgust has gotten broad enough, in fact, that authorities might be prepared to rethink some of the basic rules and processes driving the system.

The article reviews some of 2012's computer trading "hall of shame" entires, including the Facebook IPO, the BATS IPO (all the more shameful because BATS itself was a new-fangled exchange), Knight Capital's "rogue program" meltdown.

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