the how is interesting. the why, moreso. "By one estimate, as much as $600 million dollars in assets changed hands in the milliseconds before most other trade

the how is interesting. the why, moreso. "By one estimate, as much as $600 million dollars in assets changed hands in the milliseconds before most other traders in Chicago could learn of the Fed's September surprise" whoever leaked it probably had a connection that gave them an incentive greater than their career or any fines the government could impose. career reputation + fines < %cut of income from arbitrage