From Investopedia: http://www.investopedia.com/terms/s/stop-lossorder.asp
What Does Stop-Loss Order Mean?
An order placed with a broker to sell a security when it reaches a certain price. A stop-loss order is designed to limit an investor's loss on a security position.
Investopedia explains Stop-Loss Order Setting a stop-loss order for 10% below the price you paid for the stock will limit your loss to 10%. This strategy allows investors to determine their loss limit in advance, preventing emotional decision-making.
It's also a great idea to use a stop order before you leave for holidays or enter a situation in which you will be unable to watch your stocks for an extended period of time.
MMX Price at posting:
$1.06 Sentiment: None Disclosure: Not Held