Good question acturtle,I have used a variety of measures...

  1. 6,975 Posts.
    Good question acturtle,

    I have used a variety of measures depending on the stock and associated risk. Suggestions:-

    *channel trendline support - better for stocks of substance
    *5% from drop from high (or entry)
    *10% drop from high or entry - better for more volatile stocks

    The answer really resides in your and the stocks risk profile
 
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