Big 5 Sporting Goods Corp. BGFV, -0.64% reported late Monday fiscal fourth-quarter sales of $244.1 million versus $247.1 million in the year-ago quarter. Big 5 stock rose nearly 10% in the extended session Monday. The company said full-year net sales increased to $996.5 million from $987.6 million a year ago and that merchandise margins increased 2.4% in the fourth quarter, compared with a year ago. Big 5 said it expects fiscal fourth-quarter earnings of 2 cents to 4 cents a share and full-year earnings of 40 cents to 42 cents a share. FactSet does not include any analyst coverage of Big 5. Big 5 stock has lost 6.3% in the past year, as the S&P 500 index SPX, +0.70% gained 26%.