With margin borrowing, you can give your investments a boost— but if you're not careful, you could also lose more than you gain. Nicole explains the concept, and whether it's a money move you should make.

Nicole heads to the New York Stock Exchange to talk with Peter Tuchman, AKA The Einstein of Wall Street. There, they confirm the rumors: the Wolf of Wall Street days are over. Peter reveals what it's really like working on Wall Street, how to protect yourself from scammy finance "pros" and how to...