Basically, what I do is place a stop, generally 10 to 20 percent below the current price, whenever I buy a stock. The exact level depends on my own analysis of a stock's trading pattern. If a stock violates this stop, I'm out.

Quote

“Basically, what I do is place a stop, generally 10 to 20 percent below the current price, whenever I buy a stock. The exact level depends on my own analysis of a stock's trading pattern. If a stock violates this stop, I'm out.”