** Insurance Australia Group IAG.AX falls 8.7% to A$8.14, set for worst day since Februray 2009, if losses hold
** The general insurer posts HY gross written premiums (GWP)growth of 6%, lower than Citi's estimate of a 9.7% growth
** Declares interim dividend of 12 Australian cents per share, below Citi's estimate of 13 cents and consensus estimate of 13.9 cents
** Says its expects FY GWP growth towards lower end of its mid-to-high single digit forecast range
** IAG's HY cash earnings and NPAT, however, beat estimates
** "Some may be disappointed in the absence of a further buyback" — Citi
** Stock down 4.4% YTD, including day's moves
(Reporting by Himanshi Akhand in Bengaluru)
((Himanshi.Akhand@thomsonreuters.com))