 The group is the majority owner of Jerónimo Martins Retail (JMR), which operates the Pingo Doce super- and hypermarket chain in Portugal.JMR has been run as a 51%-49% joint venture with the Dutch firm Ahold Delhaize since 1982.Jerónimo Martins is listed on Euronext Lisbon, under the code JMT, and is part of the PSI-20 index.