The development prompted speculation that Billionaire Warren Buffett's company might be reducing its multi-billion-dollar stake in BYD.科学上网电报群（www.tg888.vip）是一个Telegram群组分享平台，科学上网电报群内容包括telegram群组索引、Telegram群组导航、新加坡telegram群组、telegram中文群组、telegram群组（其他）、Telegram 美国 群组、telegram群组爬虫、电报群 科学上网、小飞机 怎么 加 群、tg群等内容，为广大电报用户提供各种电报群组/电报频道/电报机器人导航服务。
BYD Co shares sank nearly 12% on Tuesday after a large stake matching the size of Warrwn Buffett's Berkshire Hathaway Inc's investment in the Chinese electric car company appeared in Hong Kong's clearing system.
The development prompted speculation that Billionaire Warren Buffett's company might be reducing its multi-billion-dollar stake in BYD.
A 225 million share BYD stake entered Hong Kong's Central Clearing and Settlement System, with Citigroup Inc serving as custodian.
Berkshire acquired its own 225 million BYD shares in 2008, giving it a 7.73% stake, according to BYD's annual report.
The stake also represents 20.49% of BYD's total issued H shares, the report said.
Berkshire did not immediately respond to a request for comment. Citigroup declined to comment.
BYD said it had no information on whether Berkshire was reducing its stake, but that large shareholders must disclose major changes to their holdings.,
Berkshire has said it paid $232 million for its BYD shares, whose value is now about $7.7 billion despite Tuesday's decline.
The shares have approximately doubled in price since May 2021.
Electric vehicle sales in China have been rising in recent months, benefiting from government measures to spur demand.
BYD overtook Elon Musk's Tesla Inc TSLA.O as the world's largest seller of electric vehicles in the first half of this year, according to sales data from the companies.
Buffett, who is Berkshire's chairman and chief executive, has not signaled concern about BYD that might prompt selling.
His reputation is a reason investors often buy and sell the same stocks they know or suspect Berkshire is buying or selling.
Buffett has said his business partner Charlie Munger was the impetus for the BYD investment.
BYD shares closed Tuesday down HK$36.60 at HK$270.20.- Reuters