** Adyen ADYEN.AS shares are up 4.2%, leading gains on the Netherlands' AEX .AEX index, after the Dutch payments firm said it would buy software firm Talon.One, the first acquisition in its 20-year history
** Deal value is 750 million euros ($875 million), closing expected in H2 2026
** Adyen sees Q1 net revenue up 20% to nearly 621 million euros, in line with market estimates
** "We see this as an appropriate use of capital," says J.P. Morgan
** Q1 figures are essentially in line with consensus, it says
** "We think this fits exactly into the M&A framework the company has long adhered to, but never acted on until today," says Evercore ISI
** Up to Thursday's close, Adyen shares were down 32% YTD
($1 = 0.8564 euros)
(Reporting by Gianluca Lo Nostro)
((Gianluca.lonostro@thomsonreuters.com))