Definition: The Direxion Mid-Cap Bull 3x Shares (MWJ) is a Bull ETF that moves in the same direction of the Russell 1000 Mid-Cap index, seeking an estimated 300% of the moves within.
By Mark Kennedy, About.com
Start your new business on the right foot with these helpful tips. More >
Easy steps to take control of your credit card debt. More >
©2009 About.com, a part of The New York Times Company.
All rights reserved.