Dow ends brutal session with 3.2pc loss; Nasdaq -4.1pc

NEW YORK: Wall Street stocks plunged Wednesday, with major indices losing more than three percent in a selloff prompted by the sudden jump in US interest rates.

When all the dust settled after a brutal session, the Dow Jones Industrial Average had lost 3.2 percent or 830 points to finish at 25,498.74, in the biggest fall since February.

The broad-based S&P 500 slumped 3.3 percent to end at 2,785.68, while the tech-rich Nasdaq Composite Index plummeted 4.1 percent to finish the session at 7,422.05.

The Nasdaq decline was its worst in percentage terms since the surprise Brexit vote in June 2016.

Losses were fairly broad-based, with tech companies Amazon and Microsoft 6.2 percent and 5.4 percent respectfully. Apple, Boeing, Nike and Visa all tumbled more than four percent, while Caterpillar and 3M lost almost four percent.

US stocks notched solid gains in the third quarter as investors brushed aside worries about trade wars and focused on strong corporate earnings and solid US economic data.

But stocks have been under pressure since the yield on 10-year US Treasury bonds jumped above three percent last week, a sudden move that raised fears of an overheating economy, speeding inflation and more aggressive Federal Reserve interest rate increases.

"It's shifting the tectonic plates," said Jack Ablin, chief investment officer at Cresset Wealth Advisors.  "Equity markets have enjoyed capital flows because bond yields have been so paltry. As rates move back towards fair value, capital is going to flow eventually out of equity risk taking."

The turmoil came a day after the International Monetary Fund slashed its global growth forecast on worries about trade wars and weakness in emerging markets.

Tom Cahill of Ventura Wealth Management said investors were also unnerved by remarks from luxury company LVMH of a crackdown on some goods in China amid the country's bitter dispute with the United States.

"Two weeks ago this kind of news would not have affected the market," he said. "But since we are now in a corrective phase, any bad news accelerates the decline."

LVMH's travails also raised worries about whether the prospects of luxury brands are fading as the global economic outlook weakens. Among American brands, Tiffany slumped 10.2 percent and Michael Kors Holdings fell 7.1 percent.

US airlines were another big loser, with American Airlines sliding 5.8 percent and Southwest Airlines 3.6 percent as a major US hurricane caused flight cancelations in Florida.