Many everyday investors consider the tech-heavy NASDAQ the home of volatility and sky-high valuations. Well, its Chinese contemporary has just made its debut and is already looking to emulate those very qualities. China’s new tech exchange, STAR Market, made a flying start on Monday with stocks of 25, mostly technology, companies listed on the platform jumping 140 percent and making three high-profile investors overnight billionaires.

The frenzied buying helped total market capitalization to more than double from 225 billion yuan ($44.5 billion) to 529 billion ($104.7 billion).