** Shares of marketing automation firm Klaviyo KVYO.N up 12% at $34.39 in extended trading, after company raises annual revenue forecast for the second time this year
** Klaviyo now expects annual revenue of $1.195 billion to $1.203 billion, compared with prior target of $1.171 billion to $1.179 billion
** Also targets Q3 revenue between $297 mln and $301 mln, above estimates of $289.7 billion
** Q2 revenue of $293.1 mln also beats estimates of $278.7 mln
** Co's Q2 net loss widened to 9 cents from 2 cents a year ago
** YTD, stock down about 25%, as of last close
(Reporting by Juveria Tabassum in Bengaluru)
((Juveria.Tabassum@thomsonreuters.com))