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Diversify

Some risks are unavoidable. Some can be eliminated through prudence and discipline. One type of risk, called unique risk, representing the potential volatility that one company's fortunes may bring to a portfolio, can be reduced simply by diversifying - by holding many different securities.

The following chart, which first appeared in Burton Malkiel's "A Random Walk down Wall Street" shows the reduction in price volatility as a portfolio grows in size from 1 stock to 50 stocks.

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The chart also displays how having a totally separate asset category, in this case international stocks, reduces overall volatility even more.

We initiate risk reduction through sector diversification by which we will not invest more that 10% of assets in any one industry. Moreover, we will not invest more than 5% of assets in any one stock. In fact, most positions represent 3% or less of a given portfolio. Exceptions that might show up on a statement include bonds and inherited concentrated positions.