Shares in Ocado fell by over 10 per cent after one of its partners announced the closure of one of its robotic warehouses. The retailer signed a deal with Canadian supermarket Sobeys in 2018 to launch its online grocery business using Ocado’s platform. The UK-listed retailer sells technology to retailers to pick and dispatch online food orders from robotic warehouses. Last year, one of its key partners, Kroger, said it would close three of its robotic warehouses across the US. Online grocery in North America has continued to develop, and Ocado's technology has evolved significantly since our first CFCs were launched in the region.