Warren Buffett's Berkshire Hathaway saw the value of its Apple stock tumble as much as $19 billion in two days.
On Thursday, Apple's stock price dropped 8%.
On Friday, Apple dropped as much as 7%.
That cut the value of Berkshire's roughly 981 million shares in the tech titan to below $110 billion.
Berkshire has still more than tripled the value of its Apple investment, as it spent about $35 billion to build the 5.7% stake.
