Aeon Co., Japan's second-largest retailer, won't release same-store sales figures in 2010 because restructuring will mean comparisons with previous years won't be useful for investors, President Motoya Okada said.

"They wouldn't have any meaning," Okada told reporters Monday in Tokyo. Aeon has shifted the shoe business at its Jusco chain into a subsidiary and may make similar changes for other product categories, he said.

Same-store sales are closely monitored by analysts and investors as they show performance by stripping out the effect of outlets that have recently opened or closed. Aeon is overhauling its business in an effort to stem a 6.2 percent drop in same-store sales this year.