Originally posted by mrmarket
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Nothing is risk free. The gold you have buries in the back yard or the cash you have under the mattress are at risk of being discovered, or burned or washed away by a broken water main or anything else that you don’t expect.
So let’s not worry about black swan events. How do you measure and manage your portfolio risk?
To me risk is measured in dollars. How many dollars am I willing to risk on any investment? Nice and simple. I am risking up to 2% of my portfolio on any one stock. If any one stock falls in price so that it has a loss of more than 2% of the portfolio then I should get rid of that stock.
A lot of people use diversification to manage risk. But I see that as a two edged sword. Yes you protect yourself from any one stock putting you in the poor house but you also limit the amount of gain any one stock can add to the performance of your portfolio. 10 to 15 stocks is not unreasonable but once you get 25 or more you might as well own the market via an ETF. You not only limit your risk with diversification but you also limit your returns.
The question remains how to get the best returns with a minimum of risk.
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