Trading for dozens of companies on the New York Stock Exchange was briefly halted Tuesday just after the market opened.
According to the NYSE, the top names affected were Verizon, McDonald’s, Morgan Stanley, AT&T and Nike.
Many of those stocks made big moves just minutes into the morning trading session, sending companies like Wells Fargo and Morgan Stanley into a tailspin.
Morgan Stanley briefly dipped to $84.93 after finishing at $97.13 on Monday before recovering. McDonald’s and Walmart also fell more than 12% before trading halted. These declines may have triggered volatility stops on the stock market.
NYSE, and most other major exchanges, issue automatic stops for stocks that rise and fall dramatically.
The affected companies have now resumed operations, according to a NYSE status report at 9:50 a.m. ET, which said “all systems are currently operational.”
NYSE officials did not immediately respond to phone calls and emails from CNN Business.
This is a developing story, please check for updates.