A trader works on the floor of the New York Stock Exchange.

Check out which companies are making headlines before the bell:

Tiffany — Tiffany earned an adjusted 64 cents per share for its latest quarter, 4 cents below estimates, while the luxury goods retailer's revenue was well short of forecasts. Comparable store sales fell 9 percent compared to analyst estimates of a 4.8-percent drop. Tiffany is being hurt in part by a stronger dollar that discourages foreign tourists from buying its goods.