For almost the entire week, BYD shares tried to defend against technical sell signals on new charts. Focus here: support at HK$175. 0/175.70, which has been repeatedly broken without a solid sell signal – at least until Friday. BYD shares ended trading at HK$172.30 on the Hong Kong stock exchange, close to a weekly low of HK$171.30 also hit on Friday. The fact that Warren Buffett continues to sell , BYD shares does little to stabilize the Chinese champion. Added to this are the political risks in China, where anxiety is rising due to the government’s continued tough policies on COVID-19.