Shares of Warren Buffett's Berkshire Hathaway closed at a 5-year low today (Friday) after their sixth straight daily decline.
The stock finished at $77,000, down $1600 on the day, or just over 2 percent.
That breaks through the recent closing low of $77,500 set on November 20, 2008. Berkshire hasn't closed at this level since October 27, 2003.