BUZZ-Standard Life: In-line update disappoints
** Insurer and asset manager's shares down 2.5 pct, top loser on FTSE 100, on fears co may struggle to meet earnings growth forecasts on the back of a weak annuities business
** Co reported H1 operating profits in-line with estimates, drop in annuity business weighed
** "Delivering consensus earnings growth will be somewhat of a challenge", Berenberg analysts say
** Stock top loser on Stoxx 600 Insurance Index, with a third of its 30-day avg volume having gone through in the first hour of trade (venkateshasoumithri.mamidipudi.thomsonreuters.com@reuters.net)