The Jupiter Tactical Trading Fund, managed by Jupiter Research Capital Asia Limited in Hong Kong, saw losses surge 43% in just three weeks of July due to a sell-off in artificial intelligence-related stocks, reflecting a shockwave that has spread to hedge funds worldwide. The fund had around 186 million dollars in assets under management at the start of the year and is linked to Shanghai Minghong Investment Company, a Chinese quant fund managing over 80 billion yuan. Before the sell-off, the fund had returned around 60% in the first five months of the year, but leverage of two to four times accelerated losses when stock prices fell. The CSI 1000 and CSI 2000 indices dropped more than 20% in July, more than double the decline of the CSI 300 index. Meanwhile, Goldman Sachs analysts said the Chinese stock market is experiencing a quant quake after market momentum reversed, forcing retail investors using margin accounts in AI and small-cap stocks to sell.