Premarket Roundup: NutriSystem, Family Dollar

Among the premarket stories for Tuesday, Oct. 6, from AP Financial News:

NEW YORK (AP) — NutriSystem Inc. shares jumped 22 percent in premarket trading on Tuesday after the company said its weight-loss program would be available beginning this week at Wal-Mart stores.

NEW YORK (AP) — An analyst lifted his rating on Family Dollar Stores Inc. Tuesday, noting the stock has lost 14 percent of its value since early July.

NEW YORK (AP) — High natural gas storage levels and weakness in demand led an analyst Tuesday to cut his outlook for natural gas prices and lower his ratings on producers Chesapeake Energy Corp. and Devon Energy Corp.

NEW YORK (AP) — Shares of credit-card companies such as American Express Co. and Discover Financial Services are poised to gain further amid signs of improvement in the economy, an analyst said Tuesday.