UK ATM operator Cardpoint says it is preliminary talks with an un-named suitor that could lead to a potential cash offer of 100 pence per share for the group.
Shares in the firm jumped over 30% on the news to 88.25 pence, before settling at 84.50 pence in lunchtime trading.
The ATM firm first said it was in bid talks in April, but said later that it had ended discussions with the un-named party.
The latest talks are still at a very preliminary stage, says Cardpoint, and there can be no certainty that any offer will be made.
But if it went ahead, the deal would value Cardpoint at around £104 million.
Cardpoint has around 5500 cash machines and 3000 mobile phone top-up terminals in the UK, and 800 ATMs installed across the Europe, mainly in Germany and The Netherlands.
Last year the firm bought out UK rival Moneybox for £87.3 million in cash.