US stock futures pointed to a third day of losses at the opening on Tuesday, deepening a correction to the stock market's long-running rally that saw the biggest intraday fall in history for the Dow Jones Industrial Average on Monday.
On June 24, 2016, amid uncertainty of the economic consequences of Britain's secession, all three major indices erased year-to-date gains by falling more than 3 percent, with the Dow falling 611.21 points, or 3.4 percent, to close at 17,399.86.
And the rout in USA markets continued to ripple around the globe.
Japan's Nikkei 225 index based in Tokyo was down 4.7% when it closed Tuesday after a rollercoaster day.
But are we seeing a stock market crash?
All U.S. stock market indexes opened down more than 1 percent Tuesday before rebounding.
More recently, Black Monday - known as Black Tuesday in the United Kingdom because of time differences - references the global markets crash on October 19, 1987.
Even after Tuesday's gain, the S&P 500 is still down 6.2 percent from the recent record high it set on January 26. The DAX in Germany shed 0.8 percent.
But if you're one of the millions invested in funds that track the S&P 500, a broader measure of market health, you're still up 16 percent since President Donald Trump took office.
Stock markets were shut for a calendar week after terror attacks on NY and Washington, D.C. left close to 3,000 people dead.
Instead of cashing in your portfolio, and burying gold and silver in your backyard - market pros say don't panic.
On Monday, the Dow finished down 4.6 percent while the S&P 500 sank 4.1 percent, to 2,648.94. The Standard & Poor's 500 index rose 31 points, or 1.2 percent, to 2,680 after a 4.1 percent drop Monday.
The Dow was down 530 points, or 2 percent, to 24,999.
Benchmark 10-year notes last fell 3/32 in price to yield 2.8054 percent, from 2.794 percent late on Monday. So, you can argue the recent sharp drops, following an unexpected steep run-up, were more normal than 2017's consistently small moves upward.
MSC Industrial Direct was up 92 cents or a little more than 1 percent after falling almost $1.77 to about $90 and Biospecifics Technologies dipped 40 cents or less than 1 percent after it fell almost $1.78 to $41.05.
USA stocks are lower at midday as banks fall following more punitive action against Wells Fargo.
"That's all very good in the real economy ... but on Wall Street, that [raised] potential inflationary concerns, and the US Federal Reserve [is considering] raising interest rates, perhaps".
Energy companies were also moving lower as the price of crude oil slipped. Copper rose 3 cents to $3.22 a pound.
While some Wall Street pros worry that stocks could be hurt more if the 10-year hits 3%, an analysis done by Credit Suisse equity strategist Jonathan Golub found that "rising rates are a positive for stocks until the 10-year hits 3.5%".
The stock market has been on a bull run for the past nine years, helped by a growing economy, strong corporate earnings and an extremely loose monetary policy by central banks. The Nasdaq composite climbed 40 points, or 0.5 percent, to 7,003. Yesterday, it lost 4.1 per cent, which was its biggest daily percentage drop since August 2011.