In May, Wal-Mart's latest financial results took the eye, although in some ways the numbers prompted as many questions as answers. In the US, there were more entrants into online grocery, notably recently-launched pure-play jet.com. Elsewhere, Japan's Aeon and France's Picard teamed up to launch the frozen food chain in the Asian market, while France's competition regulator announced plans to investigate the buying partnership between Auchan and Systeme-U.