Citadel Securities

OCC Cleared Contract Volume Up 19 Percent in May; VIX Index Closes Below 10 Again, as Professor Called VIX Level the Biggest Financial Mystery; Citadel Securities Hires Barclays’s Electronic Equities Chief

Observations & Insight May 2017 Options Exchange Marketshare via OCC Two notable changes: -NYSE down from 17.04% total options marketshare in May 2016 to 12.6% in May 2017. -CBOE up from 36.58% total options marketshare in May 2016 to 44.13% in May 2017 (vast...

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