The $14.9 Billion Battery Slide
Published October 27, 2026
CATL founder Robin Zeng has seen his estimated fortune fall from about $53.2 billion in March 2026 to roughly $38.3 billion, a paper loss of about $14.9 billion. The slide accelerated on October 21, when CATL shares fell about 12% after third-quarter profit grew just 14.5% despite a 58.6% revenue jump, squeezed by a reinstated battery consumption tax, shrinking export rebates, and automakers diversifying away from the world's largest battery maker.
On October 21, 2026, shares of Contemporary Amperex Technology Co., better known as CATL, suffered their worst one-day selloff in more than a year. The world's largest maker of electric-vehicle batteries fell about 12 percent in Shenzhen and more than 10 percent in Hong Kong, where shares touched HK$368, their lowest level since July 2025. The trigger was third-quarter results published the previous evening: revenue had surged 58.6 percent to 165.22 billion yuan, but net profit rose only 14.5 percent to 21.25 billion yuan, well below the roughly 41 percent growth analysts had expected, and profit actually fell 5.8 percent from the second quarter.
For CATL's founder and chairman, Robin Zeng, the market's verdict landed directly on his personal fortune. Zeng, 57, had seen his estimated net worth fall from about $53.2 billion in March to roughly $38.3 billion, a paper loss of about $14.9 billion, almost all of it tied to his CATL holding. CATL's shares are down about a third in Shenzhen since March, and the company's market value has nearly halved from its May peak. Zeng has not sold, so none of the loss is realized, but the scale of the swing shows how completely a founder's wealth can ride on a single stock.
The squeeze on CATL's profits comes from policy as much as competition. China reinstated a consumption tax on lithium-ion batteries on September 1, at a transitional rate of 2 percent scheduled to rise to 4 percent in September 2027, ending an exemption that had lasted more than a decade. Separately, the export VAT rebate on battery products was cut from 9 percent to 6 percent in April and will be abolished entirely on January 1, 2027. Because the consumption tax applied to only one month of the third quarter, the fourth quarter will be the first to carry it in full, and CATL's chief financial officer, Zheng Shu, has said the tax is built into product prices, so passing costs to automakers requires renegotiating contracts that are still under discussion.
Competition is adding pressure from the other side. Automakers are deliberately diversifying their battery suppliers in a trend the industry calls de-CATLization, and in September CATL's share of electric-vehicle battery installations in China slipped to 40.9 percent while rival BYD's rose to 21.1 percent. JPMorgan downgraded CATL's Hong Kong shares to neutral, warning that battery taxes, lower export rebates, and trade barriers could erode industry profitability faster than expected. Yet CATL still supplies roughly two in every five electric-vehicle batteries installed worldwide, and its revenue is still growing at a remarkable pace.
The honest framing is that this is a reassessment, not a collapse. CATL remains hugely profitable, and Zeng remains one of the richest people in China. But the episode is a clean illustration of concentrated wealth: when nearly your entire fortune sits in one listed company, a single earnings report, a tax change, and a shift in customer strategy can move your net worth by nearly $15 billion in seven months. Diversification is boring advice precisely because it works, and founders are the people least likely to take it.
The lesson: When your fortune is one stock, one policy change can move it by billions — concentration cuts both ways, and founders are the people least likely to diversify.
Source: original reporting · How we source stories