When a Stock Is Down a Double-Digit Percentage, Should You Buy More or Sell?

It's an immutable fact that the stock market is volatile -- and individual stocks even more so. Stocks can quickly fall in value over short periods of time, sometimes by double-digit percentages. Should you sell when this happens or buy more? In this segment from "The 5" on Motley Fool Live that aired Sept. 30, Fool.com contributors Brian Withers and Nicholas Rossolillo discuss how to approach this situation, and why it's important to keep adding new money and stocks in your portfolio.

Source Fool.com