Property insurer Travelers falls as severe storms drive higher catastrophe losses
** Shares of property and casualty insurer Travelers TRV.N fall 2.6% to $374 premarket
** Co posts Q3 catastrophe losses of $538 mln, up from $402 mln a year ago
** Severe wind and hailstorms in multiple US states contribute to higher catastrophe losses
** Co reports Q3 net investment income of $908 mln, up 7% from a year ago
** As of last close, stock up 32.4% YTD