Warren Buffett's bet on a Chinese electric car maker has been coming back to earth, dropping about $2 billion in value from its peak of almost $2.5 billion in October of 2009.
It's not, however, a total loss. Berkshire Hathaway's 10 percent stake in BYD is still worth around $460 million, double the $230 million it paid in September, 2008.
BYD's rally in 2009 can be at least partially attributed to enthusiasm for the company sparked by Buffett's strong endorsement. In April that year, Fortune did a major story on "Buffett's Electric Car." The cover asked, "If the Oracle's plugging in, shouldn't you?"
Less than a year later, Reuters warned that Buffett's bet could "backfire" amid accusations of stolen technology.
The latest blow is a 14.3 percent drop for BYD shares in Hong Kong trading on Tuesday. That brings them to a fresh 2-1/2 year low.