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Most trading strategies in finance are not tested rigorously enough.

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 Dr. Jacques Saint-Pierre, Adjunct Professor of Finance at Laval University & Board Advisor

 Wednesday, February 25, 2015

“Most of the empirical research in finance, whether published in academic journals or put into production as an active trading strategy by an investment manager, is likely false. Second, this implies that half the financial products (promising out performance) that companies are selling to clients are false.” “To be clear, we are not accusing asset managers of knowingly selling false products. We are pointing out that the statistical tools being employed to evaluate these trading strategies are inappropriate. This critique also applies to much of the academic empirical literature in finance.” “Two sigma is no longer an appropriate benchmark for evaluating trading strategies.” “The impact of famous finance anomalies is greatly diminished out-of -sample--or never existed in the place.” “For a number of applications the Sharpe ratio is not appropriate because the distribution of strategy returns is not normal”. See “Evaluating Trading Strategies”, by C. Harvey and Y. Liu, Journal of Portfolio Management (2014)


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TRADING FUTURES AND OPTIONS INVOLVES SUBSTANTIAL RISK OF LOSS AND IS NOT SUITABLE FOR ALL INVESTORS
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