** Shares of Ovanti OVT.AX rise as much as 100% to A$0.016, their highest level since February 17
** The fintech co partners with Shift4 Payments FOUR.N, a U.S.-based payment processing company
** Under partnership, Ovanti will launch its buy now, pay later (BNPL) business to Shift4's network of merchants in U.S. markets
** OVT last up 50%, brining YTD losses down to 29.4%, FOUR down 13% YTD