Years prior we had to remove the fractions on the bid/ask which allowed people like to me to bandit the middle by trading on ECN's.
Then we had to remove the specialists at the NYSE pits.
Still crazy at the CME in the bond pits.
We still have the E-mail system for buying/selling which allows front running unless you have a professional platform like E-sig, which is still the best product I've ever used.
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