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Trading Psychology

Backtesting and Cognitive Dissonance

Cognitive dissonance is the term used to describe the discomfort people have when they are expected to believe two or more ideas that, on their face, seem to be contradictory. Backtesting is the application of a trading system to an historical data series. Expert opinions of backtesting bring about cognitive […]

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Are investors reluctant to realise their losses?

By Terrance Odean 1998 Abstract / Introduction: I test the disposition effect, the tendency of investors to hold losing investments too long and sell winning investments too soon, by analyzing trading records for 10,000 accounts at a large discount brokerage house. These investors demonstrate a strong preference for realizing winners […]

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