The New York Stock Exchange experienced a technical glitch impacting a handful of stocks, including Barrick Gold and Warren Buffett's Berkshire Hathaway, which was shown to be down nearly 100% before the issue was fixed shortly before noon Eastern time.
"A technical issue with industry-wide price bands published by the CTA SIP triggered halts in a number of stocks listed on the NYSE Group exchanges this morning. Impacted stocks have since reopened (or are in the process of reopening) and the price bands issue has been resolved," the exchange said.