Five Chinese technology billionaires—Ma Huateng of Tencent Holdings, Jack Ma of Alibaba, Pinduoduo founder Colin Zheng Huang, Meituan's Wang Xing, and Tencent co-founder Zhang Zhidong —saw their aggregate fortunes plunge by $37 billion within three months to $182.1 billion by mid-July, according to Forbes estimates. Their combined wealth was at $219 billion on April 6.