What Caused the Plunge in Shares of Buffett-Backed BYD?

The transcript discusses a sudden stock slump and the rumors that followed, including speculation about Warren Buffett's stake and the company's exposure in Russia. The company held a teleconference to dismiss these rumors, confirming no changes in Buffett's stake or government subsidies. Analysts remain cautious about BYD, citing high valuations and challenges in the Chinese market for new energy vehicles.

What factors contributed to the negative view of the company by some analysts?

What challenges does the company face in the new energy vehicle market?