Ryan was formerly director of execution services at SG Cowen Securities and held positions at Shearson, Kidder Peabody and Lehman Brothers, starting his options career with E.F. Hutton & Co. in 1982. He serves as an instructor for the Options Industry Council and is his employer's representative on the OIC Options Roundtable. He also served on various exchange committees including the Retail Advisory committees of the CBOE, and Pacific Exchange, the ISE business conduct committee, the SIA Subcommittee for options best execution practices and the OCC internet roundtable.
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Distributed Ledger Technology Implementations Require Refreshed Approach to Security, According to New DTCC Paper
Nasdaq Announces End-of-Month Open Short Interest Positions in Nasdaq Stocks as of Settlement Date January 31, 2020
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