Day trading is when an investor buys and sells the same stock on the same day, which can occur in any marketplace (but is particularly common in the foreign exchange and stock market). Over 97 percent of daily trading activity derives from individual investor accounts. Moreover, performance measured over six months found that eight out of ten-day traders loses money. While those numbers can be discouraging, it should serve as a measure of caution for new traders lured into this activity from marketers advertising “fool-proof strategies” and “surefire signals.”
In a 2011 research study titled “The Behavior of Individual Investors,” UC Berkeley Professors Brad M. Barner and Terrance Odean found that individual investors who trade both actively and speculatively without a diversified portfolio lost money over time.
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