** Shares in Sinch SINCH.ST jump around 17% to 10-month high after the cloud communications company delivered Q2 earnings above estimates and said it would buy back its shares
** Its EBITDA of SEK 869 mln beat the SEK 765.7 mln estimate seen in LSEG poll
** "We believe the shares will react positively to today’s results, given the strong EBITDA and EFCF performance, as well as the buyback announcement," J.P.Morgan says
** Sinch reported free cash flow of SEK 523 mln, and financial leverage improving in the quarter to 1.3, down from 1.7 a year ago
** It also decided to repurchase up to 10% of the total number of shares in the company
** The stock is on track for its best day in five months, if gains hold
(Reporting by Izabela Niemiec)
((Izabela.niemiec@thomsonreuters.com))