Alibaba is about launch on the NYSE with shares currently priced at USD 68. London-based trader Michael Jarman thinks that pricing is modest and should in fact open at around USD 82 - 84. He thinks Alibaba is going in lower as it has learned its lessons from the likes of Facebook - which launched with a share price that was too high.

Overall, he's a buyer of Alibaba due to the company's potential, in particular in the US, but does remain cautious as he's sceptical of IPOs in general.

He also adds that investors who have stakes in Alibaba's competitors, such as Amazon, shouldn't worry for now given that Alibaba has a different business model to them. But he thinks once Alibaba starts to export its business model from China to the US, "it can become a problem".