NYSE Technical Glitch Leads To Stock Halts In Uber, AT&T, Others: What We Know So Far

A technical issue caused the New York Stock Exchange to halt trading in a swath of stocks on Tuesday morning. 

As a result, many stocks saw their prices decline sharply before trading was halted.

Stocks affected included Uber Technologies Inc (NYSE: UBER), AT&T Inc. (NYSE: T), Morgan Stanley (NYSE: MS), and 81 other New York Stock Exchange-listed securities.

UPDATE: The NYSE is investigating reported issues with the opening auction, the exchange told Benzinga in a statement shortly after 10 a.m. Tuesday.

All NYSE systems are operational, the statement said. 

"The opening trades originally posted to NYSE were incorrect. I had OPGs on some of these stocks and they did not execute," Dennis Dick, co-host of Benzinga's "PreMarket Prep" show, said in a tweet after the open Tuesday.

Traders and investors were left to wonder about the cause of the problem and its potential impact on the markets.

Some traders speculated the issue could be related to problems with the NYSE's systems or to a cyberattack, but the exchange has not yet confirmed any details about the cause of the issue.

Overall, the technical issue caused a chaotic morning on Wall Street, as traders scrambled to understand what was happening and to adjust their positions accordingly.

Photo via Shutterstock.