Jefferies analyst Brent Thill raised his price target for Amazon.com shares to $1,350 saying the company last night reported another solid quarter with revenue acceleration in the core business and stable quarter-over-quarter Web Services growth. The guidance looks conservative as usual on margins, Thill tells investors in a post-earnings research note. He reiterates a Buy rating on Amazon. The shares in premarket trading are up 7%, or $70.67, to $1,043.10.