If You Do Trade: Sell Losers, Not Winners: Moreover, investors are likely to avoid selling stocks or mutual funds that went down, in order to avoid the realization of a loss and the necessity of admitting that they made a mistake. | A Random Walk Down Wall Street

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If You Do Trade: Sell Losers, Not Winners: Moreover, investors are likely to avoid selling stocks or mutual funds that went down, in order to avoid the realization of a loss and the necessity of admitting that they made a mistake.

-- Burton G. Malkiel