Major retailer May Department Stores Co on Sunday posted a 4.2 per cent slide in October same-store sales.

The operator of around 1,000 stores under banners such as Lord & Taylor and Filene's, said preliminary net sales for the four weeks ended November 1 fell 2.4 per cent to $887.2 million from $909.1m last year.

It added third quarter sales slipped to $2.98 billion from $2.99bn in the year-ago period.