US shares have tumbled for a second straight day as a collapse in US oil prices and glum forecasts by companies worsened fears of a deep economic downturn.

All 11 S&P 500 sector indexes fell 1.6 per cent or more on Tuesday, with energy sliding for the seventh time in eight sessions a day after the WTI contract crashed below zero as oil traders ran out of storage for May deliveries.

With the collapse spilling into June futures contracts, equity investors became wary of the extent of the economic damage from sweeping lockdown measures that have halted business activity and sparked millions of layoffs.

The S&P information technology index slumped 4.1 per cent, while the financial index dropped 3.2 per cent.

After many companies pulled their forecasts because of uncertainty related to the coronavirus, investors will focus in the coming days on first-quarter reports for signs of how badly the pandemic is hurting US corporations.

The benchmark S&P 500 index has climbed over 20 per cent from its March low, powered by trillions of dollars in stimulus, but it remain nearly 20 per cent below its February record high due to fears of devastating economic damage caused by the coronavirus.

“What you’re seeing is pulling back in the areas that have done well, and taking profits while you can,” said Quincy Krosby, a market strategist at Prudential Financial in Newark, New Jersey.

“The question will be whether this is a consolidation after the market ran up so quickly, or is this the beginning of a more important pullback in the overall market?”

US jobless claims hit 22 million in the past month as companies launched dramatic cost-saving measures to ride out the slump, and readings of US business activity surveys, due on Thursday, are likely to plummet to recession-era lows.

Coca-Cola Co provided the latest evidence of the damage wrought by the global health crisis, saying its current-quarter results would take a severe hit from low demand for its soft drinks. Its stock fell 2.5 per cent.

International Business Machines Corp declined 3 per cent after the company withdrew its 2020 annual forecast late on Monday.

In extended trade, Netflix surged 2.6 per cent after the streaming video company reported more paid subscribers than expected in the first quarter.

Also after the bell, Texas Instruments rose 3.0 per cent following its quarterly report.

During Tuesday’s session, the Dow Jones Industrial Average fell 2.67 per cent to end at 23,018.88 points, while the S&P 500 lost 3.07 per cent to 2,736.57.

The Nasdaq Composite dropped 3.48 per cent to 8,263.23.

Declining issues outnumbered advancing ones on the NYSE by a 4.27-to-1 ratio; on Nasdaq, a 3.18-to-1 ratio favored decliners.

The S&P 500 posted one new 52-week high and no new lows; the Nasdaq Composite recorded 25 new highs and 34 new lows.

Volume on US exchanges was 12.1 billion shares, compared with a 13.2 billion-share average for the full session over the last 20 trading days.