The 10 Rules Of Investing by Bob Farrell
1. Markets tend to return to the mean (average price) over time. Like a rubber band that has been stretched too far – it must be relaxed in order to be stretched again. This is exactly the same for stock prices which are anchored to their moving averages. Trends that get overextended in one direction, or another, always return to their long-term average. Even during a strong uptrend or strong downtrend, prices often move back (revert) to a long-term moving average.During bullish trending markets there are regular reversions to the mean which create buying opportunities. However, what is often not stated is that in order to take advantage of such buying opportunities profits should have been taken out of portfolios as deviations from the mean reached historical extremes. Conversely, in bearish trending markets, such reversions from extreme deviations should be used to sell stocks, raise cash and reduce portfolio risk rather than "panic sell" at market bottoms. 2. E...