Chinese actress and director Zhao Wei is pictured during a press conference for the new movie, To Our Youth That Is Fading Away, in Beijing, China, Feb 27, 2012. [Photo/IC]

Celebrities are among those making massive profits from the frenzied trading on China's stock exchanges that has seen share prices soar in recent months.

Actress Zhao Wei, nicknamed "China's show business Buffett" by the media, has gained 470 million yuan ($76.1 million) in less than six months from an investment in Hong Kong-listed Alibaba Pictures Group, an entertainment company backed by e-commerce giant Alibaba, according to a Hong Kong exchange filing.

The 39-year-old and her tycoon husband, Huang Youlong, bought a 9.2 percent stake in the company for 2.48 billion yuan at an average price of 1.3 yuan per share in December.

This proved to be a smart move, as the value of the stock has more than doubled－shares were trading at 2.71 yuan on Monday.

According to media estimates based on public information, the total value of Zhao and her husband's stock holdings exceeds 4.55 billion yuan, including a book profit of about 2.4 billion yuan.

The benchmark stock indexes on the mainland and in Hong Kong have soared to seven-year highs in recent weeks.

However, while stars such as Zhao are making huge fortunes from the bull market, others have seen their investments turn sour due to the increasing uncertainties and risks in the market.