TRADING HAS BEEN HALTED AT THE NEW YORK STOCK EXCHANGE

Trading was halted at the New York Stock Exchange on Wednesday morning.

The latest from the NYSE is that all symbols are not trading and all open orders are now canceled.

"Additional information will follow as soon as possible," the NYSE's website says.

According to CNBC, the halt started at 11:32 a.m. ET and was triggered by "technical issues."

"We're currently experiencing a technical issue that we're working to resolve as soon as possible," the NYSE said, according to CNBC. "We will be providing further updates as soon as we can, and are doing our utmost to produce a swift resolution, communicate thoroughly and transparently, and ensure a timely and orderly market re-open," the statement further said.

"So far this is the worst I've seen since the NASDAQ blackout," said Eric Hunsader, CEO of market research firm Nanex.

Hunsader added that what we're seeing is likely a gateway issue, as some routs are simply not working. It's possible that this was caused by a system upgrade or some other kind of software update.

Hunsader tweeted the following image, showing that trades from the NYSE dropped, sputtered, and then eventually stopped.

The NYSE first started showing signs of strain at 10:32 this morning, but said the technical issue had been resolved. Then, once it started failing an hour later, it flailed in and out of connectivity before going out entirely.

This is what NYSE traders are seeing on their screens right now.

Stocks are lower in trading, with the S&P 500 and Nasdaq down more than 1%. All sectors of the S&P 500 are red for the day.

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