Update: As predicted, trading has been automatically suspended as the first of the triggers described below was activated.

AAPL is down more than 7% in pre-market trading, but it’s nothing to do with the company: it’s part of a slump across the stock market caused by two factors.

First, coronavirus fears are causing nervousness about the performance of shares across the market. Many companies, including Apple, are suffering the double-hit of supply problems in China and reduced demand from less shopping as consumers avoid shops …

Second, and the specific trigger for the current concern, Saudi Arabia slashed oil prices over the weekend, with immediate impact on energy companies, then banks due to concerns that energy firms could default on loans, and the rest of the market as a knock-on effect.

CNBC reports that there is a lot of panic in the market.

A separate CNBC report suggests that ‘circuit breakers’ designed to protect against panic-selling are likely to kick in today.

“The idea that lower gasoline prices is going to put more cash in workers’ pockets and give consumer spending and the economy a boost doesn’t seem to cushion the blow for stock market investors,” Chris Rupkey, MUFG Union Bank’s chief financial economist, said in a note Sunday. “They want out. Big time. The sky is falling. Get out, get out while you can. Wall Street’s woes have to eventually hit Main Street’s economy hard.”

Falls of 7%, 13%, and 20% respectively will trigger automatic suspensions of trading. The first two ‘pauses’ will be for 15 minutes each, while the final one would suspend trading for the rest of the day.

Futures contracts hit “limit down” on Sunday evening after CME-traded stock index futures contracts sank 5%, halting trading below that level and preventing futures from falling any further […]

According to the New York Stock Exchange, a market trading halt may occur at “three circuit breaker thresholds” on the S&P 500 due to large declines and volatility. The exchange classifies this at three levels based on the preceding session’s close in the S&P 500.