ABRAHAM KOHEN
1735 York Avenue
New York, NY 10128
(212) 722-7731
akohen@xenon.stanford.edu
PROFESSIONAL EXPERIENCE
FLEXTRADE SYSTEMS INC.
, Great Neck, NY
2002 -
Director, Quantitative Trading Strategies
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Responsible for the design, implementation, and deployment of cutting-edge
multi asset algorithmic trading modules for FlexTrader, the leading independent
algorithmic trading system for hedge-funds, broker-dealers and investment management firms.
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Designed and implemented strategies for options and warrants trading (volatility, spreads,
hedging, contingent orders), international-pairs, risk-arbitrage,
convertible bonds, VWAP, ETF market-making, index-arbitrage,
portfolio liquidation, and program trading.
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Manage group of strategists. Ensure quality on-time delivery of products.
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Assist clients in specification and implementation of algorithmic trading strategies.
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Pre-sales presentations to global prospective clients.
N & T ASSOCIATES, LLC,
New York, NY
2001 - 2002
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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.
SENGENT.COM,
Boca Raton, Florida & New York, NY
2000 - 2001
Director, Quantitative Development
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Responsible for the architecture, specifications, and design of an internet-based automated
personal financial advisor. Developed selection criteria to categorize
investors by risk profiles. Created portfolios consisting of a passive index
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
under various market scenarios.
N & T ASSOCIATES, LLC,
New York, NY & Minneapolis, MN
1999 - 2000
Consultant
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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 book.
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Traded agency baskets, pairs, and individual stocks. Executed VWAP and contingent orders.
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Designed specifications for automation of pairs-trading execution. Used expertise in
working of limits to obtain best execution for contingent orders.
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Used expert knowledge of futures and options trading 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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Supervised software developer to build index arbitrage system.
Specified trading analytics and algorithms.
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Traded index options, index futures, and stocks.
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 in excess of 20%.
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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 domestic and foreign futures and options.
SALOMON BROTHERS
, New York, NY
1987 - 1990
Vice President, Trader - 1990
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Promoted to derivatives trader.
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Traded option spreads and options/futures arbitrage.
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Used quant 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, allowing 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++, Java
ADVISORY BOARD
ClariFi