The reversal of a long-term uptrend is an important behavior to spot because it often leads to subsequent losses. Identifying and removing companies from an investment portfolio that are displaying long-term topping behavior is an important part of risk management--a pulling of the weeds approach. After all, a portfolio full of underperforming stocks should be expected to underperform.
The following list if drawn from the MSCI World North America Index and it represents the most worrisome looking topping formations. In all cases, four year uptrend lines are being violated after a period of consolidation. These are all very classic examples of stocks that should be avoided.
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