ABRAHAM (ABE) KOHEN
AK Financial Engineering Consultants, LLC
1735 York Avenue
New York, NY 10128
(212) 722-7731
akohen@cs.stanford.edu
abekohen@gmail.com
SUMMARY
Extensive experience and domain expertise in all aspects of equities and equity derivatives trading, technology, and analysis. Available for short-term and long term assignments for projects involving Reg SCI, market access rule15c3-5, smart order routing, EMS vendor selection, cross-asset derivatives, quality assurance, data science and more. NFA arbitrator.
EXPERTISE
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Trading & Software Consultant
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Equity Derivatives Trading, Technology and Analysis
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Multi-Asset Execution Management Systems (EMS) - Vendor Selection
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Smart Order Routing - Options & Equities
PROFESSIONAL EXPERIENCE
AK Financial Engineering Consultants, LLC
, New York, NY
2013 -
President
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Smart Order Routing - Options
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Smart Order Routing - Equities
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Market Access Rule - 15c3-5
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Reg SCI
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EMS Vendor Selection
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Cross Asset Derivatives: Algorithms, Design, Implementation
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Quality Assurance
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Data Science
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NFA Arbitrator
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Trade Execution
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Expert Testimony
FlexTrade Systems Inc.
, Great Neck, NY
2002 - 2013
Director, Quantitative Trading Strategies, Equity Derivatives
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Analysis, design, implementation, and deployment of multi-asset algorithmic
trading modules for algorithmic trading system for hedge-funds, broker-dealers
and investment management firms.
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Analyzed, designed and implemented strategies for options and warrants trading
(volatility, dispersion, spreads, hedging, contingent orders), ADR arbitrage,
risk-arbitrage, convertible bonds, VWAP, ETF market-making, index-arbitrage,
portfolio liquidation, and program trading.
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Assisted clients in specification and implementation of algorithmic trading strategies.
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Conducted pre-sales presentations. Conference speaker; Educator; Author.
Sengent.com,
Boca Raton, Florida & New York, NY
2000 - 2001
Director, Quantitative Development
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Architected, specified, and designed an automated personal financial advisor.
Developed selection criteria to categorize investors by risk profiles.
Created portfolios consisting of a passive index/ETF component and an active
stock selection component.
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Developed statistical arbitrage models based on Arbitrage Pricing Theory (APT).
Calculated principal components and performed statistical regressions to
determine how the derived factors explain stock returns. Back-tested models.
N & T Associates, LLC,
New York, NY & Minneapolis, MN
1999 - 2000 & 2001 - 2002
Consultant
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Conducted statistical arbitrage research. Back-tested models to validate performance.
Analyzed transaction costs and slippage. Wrote proposals for hedge fund investment.
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Retained as consultant to a large Minnesota-based hedge fund seeking to profit from
index arbitrage and to hedge its options positions using stock baskets.
Examined, selected, and integrated external algorithmic trade execution
system.
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Retained by a private investor to analyze and validate signal-based stock trading model.
D. E. Shaw & CO.,
New York, NY
1995 - 1999
Vice President, Trader and Manager
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Founded index arbitrage group. Hired and supervised traders and programmers. Managed
index portfolios. Developed algorithms and design specifications for
cutting-edge trading system. Negotiated with clearing firm to reduce financing
costs.
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Traded statistical arbitrage, agency baskets, pairs, and individual stocks. Executed VWAP and contingent orders.
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Designed specifications for automation of pairs-trading execution. Applied
limit-order-working expertise to obtain best execution for contingent orders.
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Utilized futures and options trading expertise to hedge portfolios when
committing capital.
Bear, Stearns
, New York, NY
1993 - 1994
Associate Director, Trader
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Managed index portfolios.
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Specified trading analytics and algorithms for index arbitrage system.
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Traded index options, index futures, and equities.
Nomura Securities International, Inc.
, New York, NY
1990 - 1993
Vice President, Trader - Equity Derivatives Department
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Promoted to senior trader and managed a $2 billion book, $10 million
annual revenue, with a return on regulatory capital greater than 20% per annum.
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Directed software development team in creation of program trading
and index arbitrage systems. Wrote trading specifications and
designed efficient algorithms to meet real-time trading
requirements.
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Developed a derivatives trading book. Managed highly profitable
derivatives portfolio.
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Traded US and international futures and options.
Salomon Brothers
, New York, NY
1987 - 1990
Vice President, Trader - 1990
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Promoted to derivatives trader.
Traded option spreads and options/futures arbitrage.
Used quantitative skills to price derivatives.
Project Manager - Advanced Technology Department - 1987-1989
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Working with senior traders, designed and lead development team for algorithmic
program-trading system, which enabled Salomon to expand program trading and
index arbitrage businesses.
EDUCATION
MS, Computer Science, Stanford University,
1987
MBA, Finance, University of California, Berkeley, 1983
MS, Nuclear Engineering, University of California, Berkeley, 1979
BS, Nuclear Engineering, SUNY, Buffalo, 1978
COMPUTER SKILLS
UNIX, Linux, C, awk, MatLab, Windows, C++, FIX, Java, Windows, Excel
PUBLICATIONS
Options Algorithms and Algorithmic Trading of Options, Trading, Fall 2008
ETF Best Execution, ETF & Indexing, Fall 2009
TEACHING
Nuclear Reactor Physics, General Electric, 1981-1984
Programming, Stanford University, Computer Science, 1986
UNIX Network Programming, NYU, 1994
Options and Derivatives, Nomura Securities, 1990-1993
High School Mathematics, NYC public schools, 2001
Equity Derivatives Trading, FlexTrade, 2005-2010