Milan-based digital payment company Nexi has signed a memorandum of understanding to acquire crosstown rival SIA’s equity in an all-stock deal valued at $5.30 billion (€4.60 billion), including recurring cash synergies. Both companies provide account processing and payment services. Nexi, whose stock trades on the Milan Stock Exchange, provides cardholder and merchant acquiring processing. SIA, which is 83.13% owned by a subsidiary of Cassa Depositi e Prestiti (CDP), provides a variety of processing services and technology platforms to financial institutions, corporations, central banks, a...