Once the darlings of Wall Street, for-profit education companies have seen their market value plunge to the lowest level in 52 weeks, leaving investors to wonder if the industry would be able to survive in its current form. An index of nine for-profit education companies, the S&P 1500 Education Services Index is down nearly 30 percent for the year.
Investors proved cautious ahead of the Federal Reserve's two-day policy meeting that ends on Wednesday.
Check out the companies making headlines after the bell Monday: Apple, Container Store, Barracuda & more.
Gold surged amid market intrigue surrounding a deal between Venezuela and Citi to swap cash for part of the country's gold reserves.
Biotech is getting roughed up, after leading the market's gains this year.
Patti Domm is CNBC Executive Editor, News, responsible for news coverage of the markets and economy.
A CNBC reporter since 1990, Bob Pisani covers Wall Street from the floor of the New York Stock Exchange.
Senior Producer at CNBC's Breaking News Desk.
Dominic Chu is a markets reporter for CNBC.