If you’d invested in: Weibo and Avanti Communications

Beijing-based Weibo (Nasdaq: WB) runs Sina Weibo, a micro-blogging site that is often described as the "Chinese Twitter". Launched seven years ago, it now boasts over half the domestic market, with 600 million users, of whom 126 million are daily users.

In the second quarter of 2016 revenue rose by 36% year on year to $147m. Weibo listed in 2014 and saw its share price fall by 40% in its first year. But in the last 12 months the stock has soared by more than 300%.

Be glad you didn't buy...

Avanti Communications (Aim: AVN)

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After listing in 2007, the shares shot up to a peak of more than 400p, a rise of over 150%, but have since slumped. In the last year the stock has fallen by more than 80%.