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Te second objective we try to accomplish is to implement our conclusions about fundamental investing in as consistent, disciplined and objective way possible. Armed with explicit equations expressing our views about expected asset returns, we use technology to automate the implementation of our investment ideas. Each Investment Program at QFS uses a fully integrated system consisting of several computing modules (subsystems). Te major component systems focus on expected return calculations, risk assessments (variance/co-variance matrix), a dynamic portfolio optimization approach (find the trading plan that maximizes expected return subject to risk levels) and a drawdown control system designed to reduce risk (positions) subject to the level of drawdown. All elements – expected return forecasts, correlations/ volatilities, portfolio optimization and drawdown control – operate in real time and incorporate live data feeds and continually readjust the positions suggested by the model as influenced by changing conditions.


How do you go about back-testing your proprietary currency trading systems and signals to confirm that your strategies will perform as required and will remain relevant to the long term trading goals and performance criteria of the firm?


Jim: Once a quarter on every model, the QFS research team runs statistical tests to review the models’ statistical consistency.


Karlheinz: QFS’s trading systems constitute an integrated network of programs for research, statistical analysis, testing and simulation, data collection, portfolio optimization, risk management and accounting. QFS’s trading systems operate in real time, integrating information from real-time data feeds, performing portfolio valuations, optimizations and associated trades.


In this edition of e-Forex we have examined the development of Machine Readable News and how the next generation of FX algorithms are now being designed to more effectively capture the power of the news. How does QFS go about exploiting real-time insights that are embedded within market and economic data?


Jim: Te area of machine-readable news is fascinating and is something we are following. Historically our focus has principally been on modelling macroeconomic fundamentals with a fairly long time horizon, again, with models based on fundamental hypotheses. Nevertheless, our real-time trading


system’s optimization design naturally lends itself to aggregation with higher frequency signals and there are theories of market micro-structure that might combine well at the frequencies machine-readable news work for.


To what extent have you developed research agendas and analytical programmes to help improve the design of new trading strategies and to maintain the performance of your existing investment processes?


Te Investment Committee oversees the operation and performance of the trading systems. Te Committee draws on information from markets directly, analysis from the research group, and feedback from the execution desk. At least quarterly, the Committee makes decisions to modify parameters governing the trading system (e.g. tolerance to portfolio risk), makes decisions governing non-trading system related factors (e.g., counterparty selection), or manages contingencies unforeseen that prevent the trading system from generating executable signals (e.g., emergency closure of markets).


To support a consistent, disciplined application of each trading strategy, investment decisions are made by the models. Members of management and trading monitor the accounts during the trading day to ensure that exposures and risk guidelines are being maintained. Ongoing improvements to the models are made under the direction of our research team of five PhDs (including Dr. Grossman and Dr.


Conklin). In addition, a four-person technology team assists in the implementation of the research effort. A staff of five traders, led by a Director of Trading, executes the trades that are indicated by the model (trading occurs 24 hours a day, five days a week). Te trade execution group has authority for overseeing the implementation of the trades and has limited discretion related to the timing of execution


How much reliance does QFS place on the latest automated trading tool-sets and execution algorithms to help you better manage risk, optimize trade execution pathways and meet your investment objectives?


Jim: Our proprietary trading system incorporates dynamic programming techniques to optimally enter/ exit trades while minimizing long-run transaction costs in real-time. Once signaled by the model, trades are executed by the trading desk on a best-execution basis, and generally are completed within a given


july 2012 e-FOREX | 163


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