The Herd Mentality on Wall Street

It's been a strange week on Wall Street. The stock market had a stunning late-session turnaround today, pushing the Dow Jones industrial average up more than 400 points. But just a few days ago, it suffered its worst daily plunge in nearly seven years.

Jonathan Clements, the director of financial guidance for My-Fi, a new financial service from Citigroup, talks to WNYC’s Amy Eddings about investor mood swings, and how to avoid getting caught up in them.