[techweenie]

If you are 100% certain the stock will go up, yes.

I worked with a guy who figured out that Apple was going to go up in 1981 and leveraged, borrowed, even took out a second on his condo. Made over a million bucks in 6 months. And in '81, a million was significant.

But all it would have taken was an earthquake in Silicon Valley, an economic upset of some kind, etc., etc. and he'd have lost it all.

Buy on margin only if you have the means to lose the gross amount you're leveraging.