** Shares in French advertising firm Havas HAVAS.AS rise 5% after it reported better than expected Q3 organic growth and upgraded its revenue growth forecast for 2025
** It now expects 2025 net revenue growth of 2.5%-3.0%, from above 2.0% previously; it also specified adjusted EBIT margin target to 12.9%, from a previous range of 12.5%-13.5%
** The retention of existing clients and notable new account wins are expected to contribute to growth in Q4 and in 2026, J.P. Morgan analysts note
** JPM adds that Havas' Q3 organic growth of 3.8% came ahead of its expectation of 2.3% and a Bloomberg consensus of 2.7%, driven by a "particularly strong performance" in the U.S.
** Shares of Havas are on track for their best day since April 11 if the gains hold
(Reporting by Mathias de Rozario in Gdansk)
((mathias.derozario@thomsonreuters.com;))